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WS2812 troubleshooting

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This commit is contained in:
Adrian A. Baumann
2026-04-12 20:51:00 +02:00
parent bc6249b02c
commit f02eff1e19
1 changed files with 7 additions and 60 deletions
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67
gaugemqttcontinuous.py
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@@ -24,6 +24,7 @@ import network
import utime import utime
import ujson import ujson
import urandom import urandom
print("DEBUG: imports done")
from umqtt.robust import MQTTClient from umqtt.robust import MQTTClient
from machine import Pin from machine import Pin
from neopixel import NeoPixel from neopixel import NeoPixel
@@ -265,72 +266,17 @@ print("DEBUG: _DEVICE defined")
# --------------------------------------------------------------------------- # ---------------------------------------------------------------------------
print("DEBUG: about to set wifi globals") print("DEBUG: about to set wifi globals")
print("DEBUG: setting _wifi_reconnect_delay_s...")
_wifi_reconnect_delay_s = 5 _wifi_reconnect_delay_s = 5
print("DEBUG: setting _wifi_check_interval_ms...")
_wifi_check_interval_ms = 30000 _wifi_check_interval_ms = 30000
print("DEBUG: setting _last_wifi_check...")
_last_wifi_check = 0 _last_wifi_check = 0
print("DEBUG: setting _wifi_sta...")
_wifi_sta = None _wifi_sta = None
print("DEBUG: wifi globals set") print("DEBUG: wifi globals set")
print("DEBUG: about to init LED pins")
def connect_wifi(ssid, password, timeout_s=15):
global _wifi_sta
_wifi_sta = network.WLAN(network.STA_IF)
_wifi_sta.active(True)
if _wifi_sta.isconnected():
ip, mask, gw, dns = _wifi_sta.ifconfig()
info("WiFi already connected")
info(f" IP:{ip} mask:{mask} gw:{gw} dns:{dns}")
return ip
info(f"WiFi connecting to '{ssid}' ...")
_wifi_sta.connect(ssid, password)
deadline = utime.time() + timeout_s
while not _wifi_sta.isconnected():
if utime.time() > deadline:
log_err(f"WiFi connect timeout after {timeout_s}s")
raise OSError("WiFi connect timeout")
utime.sleep_ms(200)
ip, mask, gw, dns = _wifi_sta.ifconfig()
mac = ":".join(f"{b:02x}" for b in _wifi_sta.config("mac"))
info("WiFi connected!")
info(f" SSID : {ssid}")
info(f" MAC : {mac}")
info(f" IP : {ip} mask:{mask} gw:{gw} dns:{dns}")
return ip
def check_wifi():
global _wifi_sta, _last_wifi_check, _wifi_reconnect_delay_s
now = utime.ticks_ms()
if utime.ticks_diff(now, _last_wifi_check) < _wifi_check_interval_ms:
return
_last_wifi_check = now
if _wifi_sta is None:
_wifi_sta = network.WLAN(network.STA_IF)
if _wifi_sta.isconnected():
return
log_err("WiFi lost connection — attempting reconnect...")
try:
_wifi_sta.active(True)
_wifi_sta.connect(WIFI_SSID, WIFI_PASSWORD)
deadline = utime.time() + 15
while not _wifi_sta.isconnected():
if utime.time() > deadline:
log_err("WiFi reconnect timeout")
return
utime.sleep_ms(200)
ip, mask, gw, dns = _wifi_sta.ifconfig()
info(f"WiFi reconnected! IP:{ip}")
except Exception as e:
log_err(f"WiFi reconnect failed: {e}")
# ---------------------------------------------------------------------------
# LEDs (per gauge)
# ---------------------------------------------------------------------------
num_gauges = len(gauges) num_gauges = len(gauges)
leds_red = [] leds_red = []
leds_green = [] leds_green = []
@@ -338,6 +284,7 @@ leds_bl = []
for g in gauges: for g in gauges:
leds_red.append(Pin(g["red_pin"], Pin.OUT, value=0)) leds_red.append(Pin(g["red_pin"], Pin.OUT, value=0))
leds_green.append(Pin(g["green_pin"], Pin.OUT, value=0)) leds_green.append(Pin(g["green_pin"], Pin.OUT, value=0))
print("DEBUG: LED pins initialized")
total_backlight_leds = num_gauges * (BACKLIGHT_LEDS_PER_GAUGE + STATUS_LEDS_PER_GAUGE) total_backlight_leds = num_gauges * (BACKLIGHT_LEDS_PER_GAUGE + STATUS_LEDS_PER_GAUGE)
print(f"DEBUG: initializing NeoPixel on pin {BACKLIGHT_PIN} with {total_backlight_leds} LEDs") print(f"DEBUG: initializing NeoPixel on pin {BACKLIGHT_PIN} with {total_backlight_leds} LEDs")