HC-SR501 PIR Sensor

The HC-SR501 PIR Motion Sensor Module is a versatile and cost-effective solution for detecting motion using passive infrared technology. It utilizes the LHI778 probe and BISS0001 IC to detect changes in infrared radiation emitted by living beings, triggering an output signal. This module features adjustable sensitivity and delay time via onboard potentiometers, allowing customization for various applications. With a wide operating voltage range of 5V to 20V DC and a compact design, it integrates easily into DIY electronics, home automation, security alarms, and interactive projects. The output is a 3.3V TTL signal, compatible with most microcontrollers like Arduino, ESP32, and Raspberry Pi. Its high detection angle of up to 140° and reliable blockade time ensure efficient performance. Choose this sensor for its reliability, ease of use, and widespread community support in the Indian maker and electronics hobbyist market.