Plant care system

PCB of the Plant care system

Board overview

ATmega32 AVR microcontroller as the heart of the Plant care system
Terminal block connector for external pump
Galvanically isolated terminal block connector for external lamp
AVR ISP connector for AVR programming
5V DC input with battery backup:
- 18650 battery holder for battery operation
- TP4056 board for battery charging
- Additional circuitry enabling simultaneous battery charging and system operation
Microswitch buttons for system parameters setup
4-digit 7-segment display for system parameters
LEDs indicating the currently displayed parameter on 7-segment display