Halloween Door Bell
Since its Halloween, we thought of creating a touchless door bell to scare the visitors. The bell will be triggered before they are even able to press the switch. The Items Which You Will Need Mini USB Charger5V 1 Channel Relay ModuleIR Obstacle Avoidance SensorBell SwitchCasing to house the comp...
By: projectvolt
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By: projectvolt
Continue Reading »
from Instructables: exploring - featured https://ift.tt/2R4Is4X
via IFTTT