@henkoegema said in TinyBME - ATTiny85 + NRF24l01 + BME280/I2C: @Wim-Oosterhof said in TinyBME - ATTiny85 + NRF24l01 + BME280/I2C: I was attracted to the idea of having a wireless hum/temp sensor and so I built this. I prototyped it on a breadboard, and I also soldered it on a PCB. I extended the antenna with a 8.3 cm wire. But I can't get it to work stable. Sometimes it works for many hours and sometimes only for one hour. And then it just hangs. A reset of the at85 sometimes helps, but most of the times I need to power it off and on again. I need it to work reliably for several weeks. Any suggestions ? Have you got any suggestions? Did you get it to work stable? Or have you abandoned the project?