r4sp1 / nb-iot-rain-gauge Goto Github PK

Do a test sensor which will measure temp with different temp sensors and send their value to grafana using MQTT
Possible to test a PV panel with TP4056 charger board

Need to measure intensity of light during a day - need to pick right sensor and make preparation to connect it to the ESP

• Add power path
• Sense pins for uControler for !CHRG and !STDBY signals
• NTC to monitor temperature on battery
• Sense pin to monitor voltage on TEMP signal (voltage devider)
• Pin to monitor battery voltage (voltage devider)

Radiation shield for temperature monitoring can be passive or active. In active solution there is a fan blowing air towards the sensors to reduce heat accumulation. Fan should be controlled through a MOSFET but should be on when there is no solar energy? We can take advantage of power path implementation and provide VCC to the fan only from there => if there is enough of solar intensity and MOSFET is open, fan will be spinning, if not fan will be off => actually we don't need a fan when there is no sun shining to the shiled and creating heat accumulation inside.