This PCB is a relay controller board with LoRa, You can use this PCB mostly to control appliances like garage doors etc. The Pcb uses:
- ESP32 as the microcontroller
- RYLR896 LoRa module.
- OLED SSD13086 0.96' display
- Other basic components.
There are 3 relays on board connected to pin 25/26/27 which can be customised using the selector jumpers under the ESP32 board.Back of PCB
I would also recommend to get your PCB manufactured. You can order your PCBs from PCBWAY as they offer 10 PCBs for just $5. Check out their online Gerber viewer function. With reward points you can get free stuff from their gift shop.Schematic