Arduino + relay + PIR box
thingiverse
The following components are needed to build a box for an Arduino system: 1. Uno R3 Board: A high-quality Uno R3 board featuring the MEGA328P microcontroller is required. 2. 2-Channel Relay Module: This module allows you to control two separate devices using a single digital output from your Arduino. 3. HC-SR501 PIR Motion Sensor: The HC-SR501 infrared motion sensor detects changes in its surroundings and sends an interrupt signal when it senses movement, allowing you to implement motion-based projects with ease.
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