This is a moisture sensor project based on the GardenBot project(**https://gardenbot.org/howTo/soilMoisture/**), it runs the current both forward and reverse. This allows to use a cheap two-probe soil moisture sensor with a less electrolysis.
This is my first PCB, so any suggestion or advice is very welcomed!
Mostly one layered project (except one wire) with Arduino pro mini 3v3 board and LoRa RA-2 module. Soldering the shorter header 1x6 strongly optional, in that case you have to solder the LoRa 3v3 pin to Arduino regulated 3v3 VCC.
PCB V1.1 has no 1x6 header (FTDI).
**Be careful** with the PCB, because the LoRa module was flipped and the nets were not renamed. It is ideal for home etching...
Solution to create home network via nrf24 and arduino.
Plus LEDcontrol, DHT11(temperature sensor), IR control, button control, IR motion Sensor.