A project log for Lora Soil Moisture Sensor

A soil Moisture sensor used for greenhouse, as Lora Node

MakerfabsMakerfabs 07/11/2020 at 09:070 Comments

1. There the D5 to turn On/Off the power of 555 and the temperature sensor(AHT10), that you do not always need to check.  

2. TLC555 to generate the wave , about 400K. 

3.  Atmega328, works in 3.3V 8M .