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adafruit / Adafruit_CircuitPython_DHT

CircuitPython support for DHT11 and DHT22 type temperature/humidity devices
MIT License
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Offbrand DHT11 Not working #93

Open TylerSanford opened 1 year ago

TylerSanford commented 1 year ago

I have an off brand DHT11 module that I got in a variety pack on amazon. I have tried many different configurations and GPIO pins but cannot get it to read.

I keep getting DHT Sensor not found, check wiring

The module has a different pinout order (VCC, Data, GND). I have wired it up properly.

I have tried both 3.3v and 5v

Maybe I am missing a resistor? Although I read the module on a board has a built in resistor.

From other threads I have read it seems like it could be the refresh rate of the data.. I tried changing the 18ms to 01ms as another suggested and it did not fix.

[url=https://ibb.co/VD2XSDy][img]https://i.ibb.co/826F523/2-F25-F8-F5-6-B6-B-4-A7-A-875-E-1-B3-B9-E54-AD47.jpg[/img][/url]

My next approach was to unsolder the sensor itself and wire it up as is with a resistor.

acffordyce973 commented 7 months ago

Did you manage to get this working? I'm having the same issue with 4 off-brand DHT11 sensors and 4 sets of wires for them. I'm finding it hard to believe that all of them are broken.