what I'm trying to build sounds rather easy:
mutiple ESP8266(ESP12) with connected 1wire ds18b20 sensors which publish to one mqtt broker.
The mqtt stuff is working, but I'm not able to read any values from the onewire sensors.
I tried multiple libraries, none of them found any devices (I connected 3 different ones, so I can cut out a damaged sensor), so last thing I did was clone this app-example:
Result: "No device found"
- 3.3V to 1wire +
- 3.3V via 4k7 to Data (pin 21/RX)
- Data to 1wire-Data
- Gnd to 1wire-Gnd
Any advices or known issues with the onewire implementation?