Unstable when using DHT22 sensor

meurig / esp-water-temp

Log water temp to thingspeak using an esp-01 and a ds18B20 temp sensor

GNU General Public License v3.0

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Unstable when using DHT22 sensor #8

Open meurig opened 7 years ago

meurig commented 7 years ago

As of last night I added support for the DHT22 temp and humidity sensor in software. Since then I've been running one of my strip board modules with one of these sensors.

The at around 02:40 the module started posting 0's for temp and humidity. Resetting the device today seems to have fixed the problem.

meurig commented 7 years ago

My two guesses are either:

the connection between the sensor and the board may be unreliable (the board was still posting it just wasn't getting sensor data).
the power requirements of the new sensor might be too high leading to low voltage spikes for the esp (unlikely, but I've read a lot this morning about regulating the voltage to the esp so this sounds like a sensible thing to address anyway)

meurig commented 7 years ago

I'm going to leave the device as is, wait to see if it repeats the issue and try reseating the sensor to see if that fixes it.