Jan 1, 20211 min readAutomatic hand-sanitizer dispenser circuitUpdated: Jan 31, 2021Circuit includes Attiny85, ultrasonic sensor, pump(motor), driver circuit, Diode !N414, 2.2k ohm resistor, 2 LEDs and 1000mah LIPO battery [3.7v]DRIVER CIRCUIT:PCB LAYOUT:
Circuit includes Attiny85, ultrasonic sensor, pump(motor), driver circuit, Diode !N414, 2.2k ohm resistor, 2 LEDs and 1000mah LIPO battery [3.7v]DRIVER CIRCUIT:PCB LAYOUT:
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