All the LEDs are mounted on PCB strips that are hooked up to a central bus going to the main ATmega328P microcontroller sitting on a separate piece of PCB.

The developed Automatic Handwash Dispenser uses an ATmega328P microcontroller, an ultrasonic sensor, and servo motor to dispense soap touchlessly when a hand is detected. It promotes hygiene, reduc ...

The developed Automatic Handwash Dispenser uses an ATmega328P microcontroller, an ultrasonic sensor, and servo motor to dispense soap touchlessly when a hand is detected. It promotes hygiene, reduces ...