Whether you are building an intruder alarm or an automated energy-saving light switch, understanding the technical specifications and operational boundaries of this component is critical. This comprehensive technical guide serves as a datasheet and implementation manual for the HW-416-B module. Technical Specifications (Datasheet Summary)
Output goes high, then low, regardless of continued motion. 6. Arduino Example Code The following code detects motion and lights up an LED.
He flipped the board over to see the two orange potentiometers. The Time Pot: hw-416-b pir sensor datasheet
In this post, we’ll break down the technical specifications, pinout, and key features to help you integrate it into your next build. Core Specifications
Connect this to any digital input pin on your microcontroller. It outputs 3.3V High upon detecting motion and 0V Low when there is no activity. GND: Ground connection. Connect to the system ground. Onboard Adjustments (Potentiometers) Whether you are building an intruder alarm or
Suitable for battery-operated devices.
Getting Started with the HW-416-B PIR Motion Sensor: A Complete Guide The Time Pot: In this post, we’ll break
Approximately 32mm x 24mm (Standard compact footprint) 3. Pinout and Hardware Overview
If you use the HW-416-B right next to an ESP8266 or Wi-Fi module, electromagnetic interference may trigger the sensor falsely. Keep the sensor a few inches away from antennas or add a 0.1µF ceramic capacitor across the VCC and GND pins of the PIR module to filter out power supply noise. If you'd like to expand your project, tell me:
High/Low Digital TTL logic (High = 3.3V, Low = 0V)