M5Stack Chain PIR Sensing Node
M5Stack Chain Pyroelectric Infrared (PIR) Sensing Node is designed for applications such as human activity detection, security alarms, and smart home automation. This human presence-sensing node integrates a built-in PIR sensor, a programmable RGB LED, and an STMicroelectronics STM32G031G8U6 data processor. M5Stack Chain PIR Sensing Node uses a UART serial daisy-chain communication protocol, and the HY2.0-4P expansion interfaces enable additional Chain series devices to be connected for richer interactive applications.
Features
- M5Stack Chain series
- PIR human presence sensing
- STM32G031G8U6 main controller
- UART serial daisy-chain communication protocol
- 2x HY2.0-4P expansion interfaces for connecting Chain devices
- 1x RGB LED
- Operating modes
- Automatic reporting: Automatically sends data to the host when PIR status changes
- Query: Host initiates query, and secondary responds with current PIR status
Applications
- Human activity detection
- Smart home automation
- Security alarms
Kit Contents
- 1x Chain PIR
- 1x Chain Bridge
Overview
Videos
Publié le: 2026-10-07
| Mis à jour le: 2026-10-12