m5stackM5Stack· Mechanics & transmission
Chain PIR (STM32G031)
Manufacturer part no. U225
$6.50≈ 5.71 €
Price summary
Listed by m5stack at €5.71. Delivered to France, including shipping, VAT and any customs duty, it comes to about €24.85. Prices last checked on 2026-09-29.
Delivered cost is an estimate for a single item shipped to mainland France; the seller's checkout is authoritative.
In stock
Estimated landed cost
| Item | €5.71 |
|---|---|
| Shipping | €15.00 |
| VAT (20%) | €4.14 |
| Total delivered | €24.85 |
Estimate for a single item delivered to mainland France, shipped from outside the EU: customs duty and clearance fees may apply and are charged by the carrier.
Specifications (automatically extracted)
Mechanical
| Weight | 12 g |
Description
Description Chain PIR is a pyroelectric infrared human presence sensing node in the M5Stack Chain series. It features a built-in pyroelectric infrared sensor and an integrated programmable RGB LED. It is suitable for applications such as human activity detection, smart home automation, and security alarms. Chain PIR integrates an STM32G031G8U6 data processor and uses a UART serial daisy-chain communication protocol. Its two HY2.0-4P expansion interfaces allow additional Chain series devices to be connected, enabling richer interactive applications. Features M5Stack Chain series Pyroelectric infrared human presence sensing STM32G031G8U6 main controller UART serial daisy-chain communication protocol 1 x RGB LED 2 x HY2.0-4P expansion interfaces for connecting Chain series devices Two operating modes: Automatic reporting mode: Automatically sends data to the host when the PIR status changes Query mode: The host initiates a query, and the slave responds with the current PIR status Includes 1 x Chain PIR 1 x Chain Bridge Applications Human activity detection Smart home automation Security alarms Specifications Specification Parameter MCU STM32G031G8U6 Power Input DC 5V Communication UART 115200bps@8N1 Interface 2 x HY2.0-4P RGB LED 1 x WS2812C Sensor AS312 Pyroelectric Infrared Sensor Maximum Detection Distance 2.4m Detection Angle ±60° Detection Interval 2s Operating Power Consumption [email protected] Product Size 23.9 x 23.9 x 22.3mm Product Weight 6.8g Package Size 138.0 x 93.0 x 21.0mm Gross Weight 10.0g Learn and Documents → DOCUMENTS