Microwave radar module capable of detecting movement by sending microwaves and detecting reflection changes. The radar operates at a frequency of around 3.15 GHz and needs a voltage of 4V to 28V. After detecting motion, the module sets the output level to high 3V3. Specification: - Working voltage: 4V-28V DC - Working current: 2.8mA - Distance detection: 5m - 7m - Superstructure power: 20mW - Output Signal: TTL (High 3.3V, Low 0V) PIN OUT: - 3V3: Support 3.3V output voltage, driving current is 100mA - GND: Ground - OUT: Control the output signal, when it detects an object, output will be high (3.3V), otherwise low (0V) - VIN: power input (4V-28V) - CDS: Streaming trigger signal: less than 0.7V, Low output level (OUT), Over 0.7V it works normally. https://elecena.pl/product/22604388/rcwl-0516-microwave-radar-motion-sensor-arduino 2023-02-22 https://elecena.pl/product/22604388/rcwl-0516-microwave-radar-motion-sensor-arduino 2025-10-29