938 lines
32 KiB
Python
938 lines
32 KiB
Python
"""
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gaugemqtt.py — MQTT-based gauge controller for ESP32 / MicroPython
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Deploy these files to the ESP32:
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gauge.py — stepper driver
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gaugemqtt.py — this file
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umqtt/simple.py — MicroPython built-in
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umqtt/robust.py — https://raw.githubusercontent.com/micropython/micropython-lib/master/micropython/umqtt.robust/umqtt/robust.py
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config.json — configuration (see below)
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MQTT topics (all prefixed with mqtt_prefix from config.json):
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.../set ← HA publishes target value here
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.../state → ESP32 publishes current value
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.../status → ESP32 publishes online/offline
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.../zero ← publish anything to trigger zero
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.../led/red/set ← ON/OFF
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.../led/green/set ← ON/OFF
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.../led/backlight/set ← 0-100
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Serial log format: [HH:MM:SS.mmm] LEVEL message
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"""
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import network
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import utime
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import ujson
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import urandom
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from umqtt.robust import MQTTClient
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from machine import Pin
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from neopixel import NeoPixel
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from gauge_vid6008 import Gauge
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# ---------------------------------------------------------------------------
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# Logging
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# ---------------------------------------------------------------------------
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def _ts():
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ms = utime.ticks_ms()
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return f"{(ms // 3600000) % 24:02d}:{(ms // 60000) % 60:02d}:{(ms // 1000) % 60:02d}.{ms % 1000:03d}"
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def log(level, msg):
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print(f"[{_ts()}] {level:5s} {msg}")
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_DEBUG = False
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def info(msg):
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if _DEBUG:
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log("INFO", msg)
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def warn(msg):
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log("WARN", msg)
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def log_err(msg):
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log("ERROR", msg)
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# ---------------------------------------------------------------------------
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# Configuration
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# ---------------------------------------------------------------------------
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def _load_config():
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try:
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with open("/config.json") as f:
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cfg = ujson.load(f)
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info("Config loaded from /config.json")
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return cfg
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except OSError:
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log_err("config.json not found — cannot continue")
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raise
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except Exception as e:
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log_err(f"config.json parse error: {e} — cannot continue")
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raise
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_cfg = _load_config()
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DEBUG = _cfg.get("debug", False)
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_DEBUG = DEBUG
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WIFI_SSID = _cfg["wifi_ssid"]
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WIFI_PASSWORD = _cfg["wifi_password"]
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MQTT_BROKER = _cfg["mqtt_broker"]
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MQTT_PORT = int(_cfg.get("mqtt_port", 1883))
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MQTT_USER = _cfg["mqtt_user"]
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MQTT_PASSWORD = _cfg["mqtt_password"]
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MQTT_CLIENT_ID = _cfg["mqtt_client_id"]
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MQTT_PREFIX = _cfg["mqtt_prefix"]
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MICROSTEPS_PER_SECOND = int(_cfg.get("microsteps_per_second", 600))
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HEARTBEAT_MS = int(_cfg.get("heartbeat_ms", 10000))
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REZERO_INTERVAL_MS = int(_cfg.get("rezero_interval_ms", 3600000))
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backlight_cfg = _cfg.get("backlight", {})
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BACKLIGHT_PIN = int(backlight_cfg.get("pin", _cfg.get("led_bl_pin", 23)))
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BACKLIGHT_LEDS_PER_GAUGE = int(backlight_cfg.get("num_leds_per_gauge", 3))
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STATUS_LEDS_PER_GAUGE = int(backlight_cfg.get("num_status_leds_per_gauge", 2))
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device_cfg = _cfg.get("device", {})
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DEVICE_NAME = device_cfg.get("name", _cfg.get("device_name", "Selsyn Multi"))
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DEVICE_MODEL = device_cfg.get(
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"model", _cfg.get("device_model", "Chernobyl Selsyn-inspired gauge")
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)
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DEVICE_MFR = device_cfg.get(
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"manufacturer", _cfg.get("device_manufacturer", "AdeBaumann")
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)
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DEVICE_AREA = device_cfg.get("area", _cfg.get("device_area", "Control Panels"))
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gauges = []
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if "gauges" in _cfg:
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for i, g in enumerate(_cfg["gauges"]):
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led_cfg = g.get("leds", {})
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gauges.append(
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{
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"id": i,
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"name": g.get("name", f"Gauge {i + 1}"),
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"pins": tuple(g.get("pins", [12, 13])),
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"mode": g.get("mode", "stepdir"),
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"min": float(g.get("min", 0)),
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"max": float(g.get("max", 100)),
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"step_us": int(g.get("step_us", 200)),
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"entity_name": g.get("entity_name", f"Gauge {i + 1}"),
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"unit": g.get("unit", ""),
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"red_pin": int(led_cfg.get("red_pin", 33)),
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"green_pin": int(led_cfg.get("green_pin", 32)),
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"ws2812_red": tuple(led_cfg.get("ws2812_red", [255, 0, 0])),
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"ws2812_green": tuple(led_cfg.get("ws2812_green", [0, 255, 0])),
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}
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)
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else:
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gauges.append(
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{
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"id": 0,
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"name": "Gauge 1",
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"pins": tuple(_cfg.get("gauge_pins", [12, 13])),
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"mode": _cfg.get("gauge_mode", "stepdir"),
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"min": float(_cfg.get("gauge_min", 0)),
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"max": float(_cfg.get("gauge_max", 7300)),
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"step_us": int(_cfg.get("gauge_step_us", 200)),
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"entity_name": _cfg.get("gauge_entity_name", "Selsyn 1 Power"),
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"unit": _cfg.get("gauge_unit", "W"),
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"red_pin": int(_cfg.get("led_red_pin", 33)),
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"green_pin": int(_cfg.get("led_green_pin", 32)),
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"ws2812_red": tuple(_cfg.get("ws2812_red", [255, 0, 0])),
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"ws2812_green": tuple(_cfg.get("ws2812_green", [0, 255, 0])),
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}
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)
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BL_UNIT = _cfg.get("backlight_unit", "%")
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# ---------------------------------------------------------------------------
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# Gauge initialization
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# ---------------------------------------------------------------------------
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gauge_objects = []
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for g in gauges:
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gauge_objects.append(
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Gauge(
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pins=g["pins"],
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mode=g["mode"],
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min_val=g["min"],
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max_val=g["max"],
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step_us=g["step_us"],
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)
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)
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info(
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f"Gauge {g['id']}: {g['name']} pins={g['pins']} mode={g['mode']} range=[{g['min']}, {g['max']}]"
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)
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gauge_targets = [g["min"] for g in gauges] # target value per gauge
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gauge_last_rezero = [utime.ticks_ms() for _ in gauges]
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# ---------------------------------------------------------------------------
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# Topics (per-gauge)
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# ---------------------------------------------------------------------------
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def make_gauge_topics(prefix, gauge_id):
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return {
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"set": f"{prefix}/gauge{gauge_id}/set",
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"state": f"{prefix}/gauge{gauge_id}/state",
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"status": f"{prefix}/gauge{gauge_id}/status",
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"zero": f"{prefix}/gauge{gauge_id}/zero",
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"disc": f"homeassistant/number/{MQTT_CLIENT_ID}_g{gauge_id}/config",
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"led_red": f"{prefix}/gauge{gauge_id}/led/red/set",
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"led_green": f"{prefix}/gauge{gauge_id}/led/green/set",
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"led_bl": f"{prefix}/gauge{gauge_id}/led/backlight/set",
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"led_red_state": f"{prefix}/gauge{gauge_id}/led/red/state",
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"led_green_state": f"{prefix}/gauge{gauge_id}/led/green/state",
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"led_bl_state": f"{prefix}/gauge{gauge_id}/led/backlight/state",
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"led_red_disc": f"homeassistant/switch/{MQTT_CLIENT_ID}_g{gauge_id}_red/config",
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"led_green_disc": f"homeassistant/switch/{MQTT_CLIENT_ID}_g{gauge_id}_green/config",
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"led_bl_disc": f"homeassistant/light/{MQTT_CLIENT_ID}_g{gauge_id}_bl/config",
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"status_red": f"{prefix}/gauge{gauge_id}/status_led/red/set",
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"status_green": f"{prefix}/gauge{gauge_id}/status_led/green/set",
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"status_red_state": f"{prefix}/gauge{gauge_id}/status_led/red/state",
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"status_green_state": f"{prefix}/gauge{gauge_id}/status_led/green/state",
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"status_red_disc": f"homeassistant/switch/{MQTT_CLIENT_ID}_g{gauge_id}_status_red/config",
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"status_green_disc": f"homeassistant/switch/{MQTT_CLIENT_ID}_g{gauge_id}_status_green/config",
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}
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gauge_topics = [make_gauge_topics(MQTT_PREFIX, g["id"]) for g in gauges]
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T_SET = f"{MQTT_PREFIX}/set"
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T_STATE = f"{MQTT_PREFIX}/state"
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T_STATUS = f"{MQTT_PREFIX}/status"
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T_ZERO = f"{MQTT_PREFIX}/zero"
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T_DISCO = f"{MQTT_PREFIX}/disco"
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T_DISC_GAUGE = f"homeassistant/number/{MQTT_CLIENT_ID}/config"
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T_DISC_RED = f"homeassistant/switch/{MQTT_CLIENT_ID}_red/config"
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T_DISC_GREEN = f"homeassistant/switch/{MQTT_CLIENT_ID}_green/config"
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T_DISC_BL = f"homeassistant/light/{MQTT_CLIENT_ID}_bl/config"
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def make_gauge_topics(prefix, gauge_id):
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return {
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"set": f"{prefix}/gauge{gauge_id}/set",
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"state": f"{prefix}/gauge{gauge_id}/state",
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"status": f"{prefix}/gauge{gauge_id}/status",
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"zero": f"{prefix}/gauge{gauge_id}/zero",
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"disc": f"homeassistant/number/{MQTT_CLIENT_ID}_g{gauge_id}/config",
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"led_red": f"{prefix}/gauge{gauge_id}/led/red/set",
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"led_green": f"{prefix}/gauge{gauge_id}/led/green/set",
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"led_bl": f"{prefix}/gauge{gauge_id}/led/backlight/set",
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"led_red_state": f"{prefix}/gauge{gauge_id}/led/red/state",
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"led_green_state": f"{prefix}/gauge{gauge_id}/led/green/state",
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"led_bl_state": f"{prefix}/gauge{gauge_id}/led/backlight/state",
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"led_red_disc": f"homeassistant/switch/{MQTT_CLIENT_ID}_g{gauge_id}_red/config",
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"led_green_disc": f"homeassistant/switch/{MQTT_CLIENT_ID}_g{gauge_id}_green/config",
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"led_bl_disc": f"homeassistant/light/{MQTT_CLIENT_ID}_g{gauge_id}_bl/config",
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"status_red": f"{prefix}/gauge{gauge_id}/status_led/red/set",
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"status_green": f"{prefix}/gauge{gauge_id}/status_led/green/set",
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"status_red_state": f"{prefix}/gauge{gauge_id}/status_led/red/state",
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"status_green_state": f"{prefix}/gauge{gauge_id}/status_led/green/state",
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"status_red_disc": f"homeassistant/switch/{MQTT_CLIENT_ID}_g{gauge_id}_status_red/config",
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"status_green_disc": f"homeassistant/switch/{MQTT_CLIENT_ID}_g{gauge_id}_status_green/config",
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}
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_DEVICE = {
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"identifiers": [MQTT_CLIENT_ID],
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"name": DEVICE_NAME,
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"model": DEVICE_MODEL,
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"manufacturer": DEVICE_MFR,
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"suggested_area": DEVICE_AREA,
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}
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# ---------------------------------------------------------------------------
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# WiFi
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# ---------------------------------------------------------------------------
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_wifi_reconnect_delay_s = 5
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_wifi_check_interval_ms = 30000
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_last_wifi_check = 0
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_wifi_sta = None
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def connect_wifi(ssid, password, timeout_s=15):
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global _wifi_sta
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_wifi_sta = network.WLAN(network.STA_IF)
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_wifi_sta.active(True)
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if _wifi_sta.isconnected():
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ip, mask, gw, dns = _wifi_sta.ifconfig()
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info("WiFi already connected")
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info(f" IP:{ip} mask:{mask} gw:{gw} dns:{dns}")
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return ip
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info(f"WiFi connecting to '{ssid}' ...")
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_wifi_sta.connect(ssid, password)
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deadline = utime.time() + timeout_s
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while not _wifi_sta.isconnected():
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if utime.time() > deadline:
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log_err(f"WiFi connect timeout after {timeout_s}s")
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raise OSError("WiFi connect timeout")
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utime.sleep_ms(200)
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ip, mask, gw, dns = _wifi_sta.ifconfig()
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mac = ":".join(f"{b:02x}" for b in _wifi_sta.config("mac"))
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info("WiFi connected!")
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info(f" SSID : {ssid}")
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info(f" MAC : {mac}")
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info(f" IP : {ip} mask:{mask} gw:{gw} dns:{dns}")
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return ip
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def check_wifi():
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global _wifi_sta, _last_wifi_check, _wifi_reconnect_delay_s
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now = utime.ticks_ms()
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if utime.ticks_diff(now, _last_wifi_check) < _wifi_check_interval_ms:
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return
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_last_wifi_check = now
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if _wifi_sta is None:
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_wifi_sta = network.WLAN(network.STA_IF)
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if _wifi_sta.isconnected():
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return
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log_err("WiFi lost connection — attempting reconnect...")
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try:
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_wifi_sta.active(True)
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_wifi_sta.connect(WIFI_SSID, WIFI_PASSWORD)
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deadline = utime.time() + 15
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while not _wifi_sta.isconnected():
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if utime.time() > deadline:
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log_err("WiFi reconnect timeout")
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return
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utime.sleep_ms(200)
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ip, mask, gw, dns = _wifi_sta.ifconfig()
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info(f"WiFi reconnected! IP:{ip}")
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except Exception as e:
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log_err(f"WiFi reconnect failed: {e}")
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# ---------------------------------------------------------------------------
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# LEDs (per gauge)
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# ---------------------------------------------------------------------------
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num_gauges = len(gauges)
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leds_red = []
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leds_green = []
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leds_bl = []
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for g in gauges:
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leds_red.append(Pin(g["red_pin"], Pin.OUT, value=0))
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leds_green.append(Pin(g["green_pin"], Pin.OUT, value=0))
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total_backlight_leds = num_gauges * (BACKLIGHT_LEDS_PER_GAUGE + STATUS_LEDS_PER_GAUGE)
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leds_bl = NeoPixel(Pin(BACKLIGHT_PIN), total_backlight_leds)
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backlight_color = [(0, 0, 0) for _ in range(num_gauges)]
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backlight_brightness = [100 for _ in range(num_gauges)]
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backlight_on = [False for _ in range(num_gauges)]
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status_led_red = [False for _ in range(num_gauges)]
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status_led_green = [False for _ in range(num_gauges)]
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_bl_dirty_since = None
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_BL_SAVE_DELAY_MS = 5000
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_disco_saved_brightness = [100] * num_gauges
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_disco_saved_color = [[0, 0, 0] for _ in range(num_gauges)]
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def _flush_backlight(client):
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for i in range(num_gauges):
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gt = gauge_topics[i]
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payload = {
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"state": "ON" if backlight_on[i] else "OFF",
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"color": {
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"r": backlight_color[i][0],
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"g": backlight_color[i][1],
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"b": backlight_color[i][2],
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},
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"brightness": int(backlight_brightness[i] * 2.55),
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}
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client.publish(gt["led_bl_state"], ujson.dumps(payload), retain=True)
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info(
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f"Gauge {i} backlight: {payload['state']} {backlight_color[i]} @ {backlight_brightness[i]}%"
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)
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def _backlight_changed(gauge_idx, new_color, new_on, new_brightness):
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return (
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new_color != backlight_color[gauge_idx]
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or new_on != backlight_on[gauge_idx]
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or (new_on and new_brightness != backlight_brightness[gauge_idx])
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)
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def _mark_bl_dirty():
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global _bl_dirty_since
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_bl_dirty_since = utime.ticks_ms()
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def set_backlight_color(gauge_idx, r, g, b, brightness=None):
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global backlight_color, backlight_brightness, backlight_on
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if brightness is None:
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brightness = backlight_brightness[gauge_idx]
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new_on = brightness > 0
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if not _backlight_changed(gauge_idx, (r, g, b), new_on, brightness):
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return
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backlight_color[gauge_idx] = (r, g, b)
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if brightness > 0:
|
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backlight_brightness[gauge_idx] = brightness
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backlight_on[gauge_idx] = new_on
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scale = brightness / 100
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leds_per_gauge = BACKLIGHT_LEDS_PER_GAUGE + STATUS_LEDS_PER_GAUGE
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base_idx = gauge_idx * leds_per_gauge
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for j in range(BACKLIGHT_LEDS_PER_GAUGE):
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leds_bl[base_idx + j] = (int(g * scale), int(r * scale), int(b * scale))
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_update_status_leds(gauge_idx)
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leds_bl.write()
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_mark_bl_dirty()
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|
|
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def set_backlight_brightness(gauge_idx, brightness):
|
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global backlight_brightness, backlight_on
|
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clamped = max(0, min(100, brightness))
|
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new_on = clamped > 0
|
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if not _backlight_changed(gauge_idx, backlight_color[gauge_idx], new_on, clamped):
|
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return
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if clamped > 0:
|
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backlight_brightness[gauge_idx] = clamped
|
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backlight_on[gauge_idx] = new_on
|
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r, g, b = backlight_color[gauge_idx]
|
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scale = clamped / 100
|
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leds_per_gauge = BACKLIGHT_LEDS_PER_GAUGE + STATUS_LEDS_PER_GAUGE
|
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base_idx = gauge_idx * leds_per_gauge
|
|
for j in range(BACKLIGHT_LEDS_PER_GAUGE):
|
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leds_bl[base_idx + j] = (int(g * scale), int(r * scale), int(b * scale))
|
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_update_status_leds(gauge_idx)
|
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leds_bl.write()
|
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_mark_bl_dirty()
|
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|
|
|
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def _update_status_leds(gauge_idx):
|
|
leds_per_gauge = BACKLIGHT_LEDS_PER_GAUGE + STATUS_LEDS_PER_GAUGE
|
|
base_idx = gauge_idx * leds_per_gauge + BACKLIGHT_LEDS_PER_GAUGE
|
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|
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g_cfg = gauges[gauge_idx]
|
|
red_color = g_cfg["ws2812_red"]
|
|
green_color = g_cfg["ws2812_green"]
|
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|
|
if status_led_red[gauge_idx]:
|
|
leds_bl[base_idx] = (red_color[1], red_color[0], red_color[2])
|
|
else:
|
|
leds_bl[base_idx] = (0, 0, 0)
|
|
|
|
if status_led_green[gauge_idx]:
|
|
leds_bl[base_idx + 1] = (green_color[1], green_color[0], green_color[2])
|
|
else:
|
|
leds_bl[base_idx + 1] = (0, 0, 0)
|
|
|
|
|
|
def set_status_led(gauge_idx, led_type, state):
|
|
global status_led_red, status_led_green
|
|
if led_type == "red":
|
|
status_led_red[gauge_idx] = state
|
|
elif led_type == "green":
|
|
status_led_green[gauge_idx] = state
|
|
_update_status_leds(gauge_idx)
|
|
leds_bl.write()
|
|
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# State
|
|
# ---------------------------------------------------------------------------
|
|
|
|
_last_rezero_ms = None # set to ticks_ms() in main()
|
|
client_ref = None
|
|
_mqtt_connected = False
|
|
_last_mqtt_check = 0
|
|
|
|
_disco_end_time = 0
|
|
|
|
|
|
def _publish(topic, payload, retain=False):
|
|
"""Safely publish MQTT message, returning True on success."""
|
|
if client_ref is None:
|
|
return False
|
|
try:
|
|
client_ref.publish(topic, payload, retain=retain)
|
|
return True
|
|
except Exception as e:
|
|
log_err(f"MQTT publish failed: {e}")
|
|
return False
|
|
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# MQTT callbacks
|
|
# ---------------------------------------------------------------------------
|
|
|
|
|
|
def on_message(topic, payload):
|
|
global _disco_end_time, _disco_saved_brightness, _disco_saved_color
|
|
global backlight_brightness, backlight_color
|
|
if client_ref is None:
|
|
return
|
|
topic = topic.decode()
|
|
payload = payload.decode().strip()
|
|
info(f"MQTT rx {topic} {payload}")
|
|
|
|
for i, gt in enumerate(gauge_topics):
|
|
if topic == gt["zero"]:
|
|
info(f"Zero command received for gauge {i}")
|
|
gauge_objects[i].zero()
|
|
gauge_last_rezero[i] = utime.ticks_ms()
|
|
info(f"Zero complete gauge {i}")
|
|
return
|
|
|
|
if topic == gt["set"]:
|
|
g = gauges[i]
|
|
try:
|
|
gauge_targets[i] = max(g["min"], min(g["max"], float(payload)))
|
|
info(f"Gauge {i} target → {gauge_targets[i]:.1f}")
|
|
except ValueError:
|
|
warn(f"Invalid set value for gauge {i}: '{payload}'")
|
|
return
|
|
|
|
if topic == T_ZERO:
|
|
for i, g in enumerate(gauge_objects):
|
|
info(f"Zeroing all gauges")
|
|
g.zero()
|
|
gauge_last_rezero[i] = utime.ticks_ms()
|
|
info("All gauges zeroed")
|
|
return
|
|
|
|
if topic == T_DISCO:
|
|
_disco_end_time = utime.ticks_ms() + 5000
|
|
for i in range(num_gauges):
|
|
_disco_saved_brightness[i] = backlight_brightness[i]
|
|
_disco_saved_color[i] = backlight_color[i]
|
|
info("Disco mode started")
|
|
return
|
|
|
|
for i, gt in enumerate(gauge_topics):
|
|
if topic == gt["led_red"]:
|
|
state = payload.upper() == "ON"
|
|
leds_red[i].value(1 if state else 0)
|
|
_publish(gt["led_red_state"], "ON" if state else "OFF", retain=True)
|
|
info(f"Gauge {i} red LED → {'ON' if state else 'OFF'}")
|
|
return
|
|
|
|
if topic == gt["led_green"]:
|
|
state = payload.upper() == "ON"
|
|
leds_green[i].value(1 if state else 0)
|
|
_publish(gt["led_green_state"], "ON" if state else "OFF", retain=True)
|
|
info(f"Gauge {i} green LED → {'ON' if state else 'OFF'}")
|
|
return
|
|
|
|
if topic == gt["led_bl"]:
|
|
try:
|
|
data = ujson.loads(payload)
|
|
if data.get("state", "ON").upper() == "OFF":
|
|
set_backlight_brightness(i, 0)
|
|
_publish(
|
|
gt["led_bl_state"], ujson.dumps({"state": "OFF"}), retain=True
|
|
)
|
|
info(f"Gauge {i} backlight → OFF")
|
|
return
|
|
color = data.get("color", {})
|
|
r = max(0, min(255, int(color.get("r", backlight_color[i][0]))))
|
|
g = max(0, min(255, int(color.get("g", backlight_color[i][1]))))
|
|
b = max(0, min(255, int(color.get("b", backlight_color[i][2]))))
|
|
raw_br = data.get("brightness", None)
|
|
if raw_br is not None:
|
|
brightness = max(0, min(100, round(int(raw_br) / 2.55)))
|
|
elif backlight_brightness[i] > 0:
|
|
brightness = backlight_brightness[i]
|
|
else:
|
|
brightness = 100
|
|
except Exception as e:
|
|
warn(f"Invalid backlight payload for gauge {i}: '{payload}' ({e})")
|
|
return
|
|
set_backlight_color(i, r, g, b, brightness)
|
|
state = {
|
|
"state": "ON",
|
|
"color_mode": "rgb",
|
|
"brightness": int(brightness * 2.55),
|
|
"color": {"r": r, "g": g, "b": b},
|
|
}
|
|
_publish(gt["led_bl_state"], ujson.dumps(state), retain=True)
|
|
info(f"Gauge {i} backlight → #{r:02x}{g:02x}{b:02x} @ {brightness}%")
|
|
return
|
|
|
|
if topic == gt["status_red"]:
|
|
state = payload.upper() == "ON"
|
|
set_status_led(i, "red", state)
|
|
_publish(gt["status_red_state"], "ON" if state else "OFF", retain=True)
|
|
info(f"Gauge {i} status red → {'ON' if state else 'OFF'}")
|
|
return
|
|
|
|
if topic == gt["status_green"]:
|
|
state = payload.upper() == "ON"
|
|
set_status_led(i, "green", state)
|
|
_publish(gt["status_green_state"], "ON" if state else "OFF", retain=True)
|
|
info(f"Gauge {i} status green → {'ON' if state else 'OFF'}")
|
|
return
|
|
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# MQTT connect + discovery
|
|
# ---------------------------------------------------------------------------
|
|
|
|
|
|
def connect_mqtt():
|
|
global client_ref, _mqtt_connected
|
|
info(f"Connecting to MQTT broker {MQTT_BROKER}:{MQTT_PORT} ...")
|
|
client = MQTTClient(
|
|
client_id=MQTT_CLIENT_ID,
|
|
server=MQTT_BROKER,
|
|
port=MQTT_PORT,
|
|
user=MQTT_USER,
|
|
password=MQTT_PASSWORD,
|
|
keepalive=60,
|
|
)
|
|
client.set_last_will(gauge_topics[0]["status"], b"offline", retain=True, qos=0)
|
|
client.set_callback(on_message)
|
|
client.connect()
|
|
client_ref = client
|
|
client.subscribe(T_SET)
|
|
client.subscribe(T_ZERO)
|
|
client.subscribe(T_DISCO)
|
|
for gt in gauge_topics:
|
|
client.subscribe(gt["set"])
|
|
client.subscribe(gt["zero"])
|
|
client.subscribe(gt["led_red"])
|
|
client.subscribe(gt["led_green"])
|
|
client.subscribe(gt["led_bl"])
|
|
client.subscribe(gt["status_red"])
|
|
client.subscribe(gt["status_green"])
|
|
_mqtt_connected = True
|
|
info(f"MQTT connected client_id={MQTT_CLIENT_ID}")
|
|
return client
|
|
|
|
|
|
_mqtt_check_interval_ms = 30000
|
|
_last_mqtt_check = 0
|
|
|
|
|
|
def check_mqtt():
|
|
global client_ref, _mqtt_connected, _last_mqtt_check
|
|
now = utime.ticks_ms()
|
|
if utime.ticks_diff(now, _last_mqtt_check) < _mqtt_check_interval_ms:
|
|
return _mqtt_connected
|
|
_last_mqtt_check = now
|
|
|
|
if client_ref is None:
|
|
return False
|
|
|
|
try:
|
|
client_ref.ping()
|
|
_mqtt_connected = True
|
|
return True
|
|
except Exception as e:
|
|
log_err(f"MQTT connection lost: {e}")
|
|
_mqtt_connected = False
|
|
|
|
# Try to reconnect
|
|
log_err("Attempting MQTT reconnection...")
|
|
for attempt in range(3):
|
|
try:
|
|
client_ref = MQTTClient(
|
|
client_id=MQTT_CLIENT_ID,
|
|
server=MQTT_BROKER,
|
|
port=MQTT_PORT,
|
|
user=MQTT_USER,
|
|
password=MQTT_PASSWORD,
|
|
keepalive=60,
|
|
)
|
|
client_ref.set_last_will(
|
|
gauge_topics[0]["status"], b"offline", retain=True, qos=0
|
|
)
|
|
client_ref.set_callback(on_message)
|
|
client_ref.connect()
|
|
client_ref.subscribe(T_SET)
|
|
client_ref.subscribe(T_ZERO)
|
|
client_ref.subscribe(T_DISCO)
|
|
for gt in gauge_topics:
|
|
client_ref.subscribe(gt["set"])
|
|
client_ref.subscribe(gt["zero"])
|
|
client_ref.subscribe(gt["led_red"])
|
|
client_ref.subscribe(gt["led_green"])
|
|
client_ref.subscribe(gt["led_bl"])
|
|
client_ref.subscribe(gt["status_red"])
|
|
client_ref.subscribe(gt["status_green"])
|
|
_mqtt_connected = True
|
|
info("MQTT reconnected!")
|
|
publish_discovery(client_ref)
|
|
publish_state(client_ref)
|
|
return True
|
|
except Exception as e2:
|
|
log_err(f"MQTT reconnect attempt {attempt + 1} failed: {e2}")
|
|
utime.sleep_ms(2000)
|
|
|
|
log_err("MQTT reconnection failed after 3 attempts")
|
|
return False
|
|
|
|
|
|
def publish_discovery(client):
|
|
"""Publish all HA MQTT discovery payloads for gauges and LEDs."""
|
|
_dev_ref = {
|
|
"identifiers": [MQTT_CLIENT_ID],
|
|
"name": DEVICE_NAME,
|
|
"model": DEVICE_MODEL,
|
|
"manufacturer": DEVICE_MFR,
|
|
"suggested_area": DEVICE_AREA,
|
|
}
|
|
|
|
for i, g in enumerate(gauges):
|
|
gt = gauge_topics[i]
|
|
|
|
client.publish(
|
|
gt["disc"],
|
|
ujson.dumps(
|
|
{
|
|
"name": g["entity_name"],
|
|
"unique_id": f"{MQTT_CLIENT_ID}_g{i}",
|
|
"cmd_t": gt["set"],
|
|
"stat_t": gt["state"],
|
|
"avty_t": gt["status"],
|
|
"min": g["min"],
|
|
"max": g["max"],
|
|
"step": 1,
|
|
"unit_of_meas": g["unit"],
|
|
"icon": "mdi:gauge",
|
|
"dev": _dev_ref,
|
|
}
|
|
),
|
|
retain=True,
|
|
)
|
|
info(f"Discovery: gauge {i} ({g['name']})")
|
|
|
|
client.publish(
|
|
gt["led_red_disc"],
|
|
ujson.dumps(
|
|
{
|
|
"name": f"{g['name']} Red LED",
|
|
"uniq_id": f"{MQTT_CLIENT_ID}_g{i}_red",
|
|
"cmd_t": gt["led_red"],
|
|
"stat_t": gt["led_red_state"],
|
|
"pl_on": "ON",
|
|
"pl_off": "OFF",
|
|
"icon": "mdi:led-on",
|
|
"dev": _dev_ref,
|
|
"ret": True,
|
|
}
|
|
),
|
|
retain=True,
|
|
)
|
|
info(f"Discovery: gauge {i} red LED")
|
|
|
|
client.publish(
|
|
gt["led_green_disc"],
|
|
ujson.dumps(
|
|
{
|
|
"name": f"{g['name']} Green LED",
|
|
"uniq_id": f"{MQTT_CLIENT_ID}_g{i}_green",
|
|
"cmd_t": gt["led_green"],
|
|
"stat_t": gt["led_green_state"],
|
|
"pl_on": "ON",
|
|
"pl_off": "OFF",
|
|
"icon": "mdi:led-on",
|
|
"dev": _dev_ref,
|
|
"ret": True,
|
|
}
|
|
),
|
|
retain=True,
|
|
)
|
|
info(f"Discovery: gauge {i} green LED")
|
|
|
|
client.publish(
|
|
gt["led_bl_disc"],
|
|
ujson.dumps(
|
|
{
|
|
"name": f"{g['name']} Backlight",
|
|
"uniq_id": f"{MQTT_CLIENT_ID}_g{i}_bl",
|
|
"cmd_t": gt["led_bl"],
|
|
"stat_t": gt["led_bl_state"],
|
|
"schema": "json",
|
|
"supported_color_modes": ["rgb"],
|
|
"icon": "mdi:led-strip",
|
|
"dev": _dev_ref,
|
|
"ret": True,
|
|
}
|
|
),
|
|
retain=True,
|
|
)
|
|
info(f"Discovery: gauge {i} backlight")
|
|
|
|
client.publish(
|
|
gt["status_red_disc"],
|
|
ujson.dumps(
|
|
{
|
|
"name": f"{g['name']} Status Red",
|
|
"uniq_id": f"{MQTT_CLIENT_ID}_g{i}_status_red",
|
|
"cmd_t": gt["status_red"],
|
|
"stat_t": gt["status_red_state"],
|
|
"pl_on": "ON",
|
|
"pl_off": "OFF",
|
|
"icon": "mdi:led-on",
|
|
"dev": _dev_ref,
|
|
"ret": True,
|
|
}
|
|
),
|
|
retain=True,
|
|
)
|
|
info(f"Discovery: gauge {i} status red")
|
|
|
|
client.publish(
|
|
gt["status_green_disc"],
|
|
ujson.dumps(
|
|
{
|
|
"name": f"{g['name']} Status Green",
|
|
"uniq_id": f"{MQTT_CLIENT_ID}_g{i}_status_green",
|
|
"cmd_t": gt["status_green"],
|
|
"stat_t": gt["status_green_state"],
|
|
"pl_on": "ON",
|
|
"pl_off": "OFF",
|
|
"icon": "mdi:led-on",
|
|
"dev": _dev_ref,
|
|
"ret": True,
|
|
}
|
|
),
|
|
retain=True,
|
|
)
|
|
info(f"Discovery: gauge {i} status green")
|
|
|
|
|
|
def publish_state(client):
|
|
for i, g in enumerate(gauge_objects):
|
|
gt = gauge_topics[i]
|
|
val = g.get()
|
|
client.publish(gt["state"], str(round(val, 1)), retain=True)
|
|
client.publish(gt["status"], "online", retain=True)
|
|
info(f"Gauge {i} state: {val:.1f} step={g._current_step}")
|
|
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# Main
|
|
# ---------------------------------------------------------------------------
|
|
|
|
|
|
def main():
|
|
info("=" * 48)
|
|
info("Gauge MQTT controller starting")
|
|
info("=" * 48)
|
|
|
|
connect_wifi(WIFI_SSID, WIFI_PASSWORD)
|
|
|
|
info("Zeroing gauges on startup ...")
|
|
for i, g in enumerate(gauge_objects):
|
|
g.zero()
|
|
info(f"Zeroed gauge {i}")
|
|
info("Zero complete")
|
|
|
|
connect_mqtt()
|
|
publish_discovery(client_ref)
|
|
publish_state(client_ref)
|
|
|
|
info("Entering main loop")
|
|
info("-" * 48)
|
|
|
|
try:
|
|
import ota
|
|
|
|
ota.mark_ok()
|
|
info("OTA OK flag set")
|
|
except ImportError:
|
|
pass
|
|
|
|
global _bl_dirty_since
|
|
last_heartbeat = utime.ticks_ms()
|
|
|
|
while True:
|
|
try:
|
|
now = utime.ticks_ms()
|
|
|
|
if _disco_end_time > 0 and utime.ticks_diff(_disco_end_time, now) <= 0:
|
|
_disco_end_time = 0
|
|
for i in range(num_gauges):
|
|
set_backlight_color(i, *_disco_saved_color[i], _disco_saved_brightness[i])
|
|
info("Disco mode ended")
|
|
elif _disco_end_time > 0:
|
|
r = urandom.getrandbits(8)
|
|
g = urandom.getrandbits(8)
|
|
b = urandom.getrandbits(8)
|
|
r = max(r, 128)
|
|
g = max(g, 128)
|
|
b = max(b, 128)
|
|
for i in range(num_gauges):
|
|
leds_per_gauge = BACKLIGHT_LEDS_PER_GAUGE + STATUS_LEDS_PER_GAUGE
|
|
base_idx = i * leds_per_gauge
|
|
for j in range(BACKLIGHT_LEDS_PER_GAUGE):
|
|
leds_bl[base_idx + j] = (g, r, b)
|
|
leds_bl.write()
|
|
utime.sleep_ms(200)
|
|
|
|
check_wifi()
|
|
|
|
if not check_mqtt():
|
|
utime.sleep_ms(1000)
|
|
continue
|
|
|
|
client_ref.check_msg()
|
|
|
|
moved_any = False
|
|
for i, g in enumerate(gauge_objects):
|
|
current_target = g._val_to_step(gauge_targets[i])
|
|
if current_target != g._current_step:
|
|
direction = 1 if current_target > g._current_step else -1
|
|
steps_to_move = current_target - g._current_step
|
|
steps_to_move = max(-5, min(5, steps_to_move))
|
|
for _ in range(abs(steps_to_move)):
|
|
g.step(direction)
|
|
moved_any = True
|
|
|
|
if moved_any:
|
|
delay_us = 1_000_000 // MICROSTEPS_PER_SECOND
|
|
utime.sleep_us(delay_us)
|
|
|
|
if (
|
|
REZERO_INTERVAL_MS > 0
|
|
and utime.ticks_diff(now, gauge_last_rezero[0]) >= REZERO_INTERVAL_MS
|
|
):
|
|
for i, g in enumerate(gauge_objects):
|
|
info(f"Auto-rezero gauge {i}")
|
|
saved = gauge_targets[i]
|
|
g.zero()
|
|
if saved > gauges[i]["min"]:
|
|
g.set(saved)
|
|
gauge_last_rezero[i] = now
|
|
publish_state(client_ref)
|
|
info("Auto-rezero complete")
|
|
|
|
if (
|
|
_bl_dirty_since is not None
|
|
and utime.ticks_diff(now, _bl_dirty_since) >= _BL_SAVE_DELAY_MS
|
|
):
|
|
_flush_backlight(client_ref)
|
|
_bl_dirty_since = None
|
|
|
|
if utime.ticks_diff(now, last_heartbeat) >= HEARTBEAT_MS:
|
|
publish_state(client_ref)
|
|
last_heartbeat = now
|
|
|
|
except Exception as e:
|
|
log_err(f"Main loop error: {e} — continuing")
|
|
utime.sleep_ms(100)
|
|
|
|
|
|
main()
|