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An automatic hand sanitizer dispenser built with Wemos D1 Mini. Uses an ultrasonic sensor to trigger a water pump.

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k12code/hand_sanitizer

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Automatic Hand Sanitizer

Breadboard Circuit

Breadboard Circuit

Component List

Code Description
MCU1 Wemos D1 Mini
SEN1 HC-SR04 Ultrasonic Sensor
PCB1 IRF520 MOSFET Driver Module
M1 Water Pump (3-6V)

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An automatic hand sanitizer dispenser built with Wemos D1 Mini. Uses an ultrasonic sensor to trigger a water pump.

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