Temp, pressure, humidity + OLED
this is a sensor with BME280, 0.96" OLED display and a custom PCB with Arduino Pro Mini 3,3v.
THe PCB is about 5cmx5cm with TP4056 LIPO charger, voltage regulator, space for an antenna, as described here: https://forum.mysensors.org/topic/5314/pcbs-for-battery-based-sensor
A button turns on the display:
Here the PCB:
How much battery life are you getting from that node?
@gohan I don't know, I think about 2 or 3 months but I will do some calculations