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    • Jan 1, 2021
    • 1 min read

Automatic hand-sanitizer dispenser circuit

Updated: Jan 31, 2021


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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