Grenade Claymore airsoft RC controller

Bring electronics and interaction to your 3D-printed project with this compact, customizable proximity control system. Designed around the widely available Arduino Nano and HC-SR04 ultrasonic sensor, this project can detect when a person or object enters a configured distance. A 433 MHz RF remote is used to arm or disarm the system, while a common-anode RGB LED clearly displays its current state. After receiving the arming command, the red LED flashes during a minimum 5-second preparation perio…

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