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Chain PIR - PIR motion sensor - STM32G031 - M5Stack U225
The M5Stack Chain PIR is a compact PIR motion sensor from the Chain series, equipped with an AS312 pyroelectric sensor and a programmable WS2812C RGB LED . The module detects motion at a distance of up to 2.4 m and uses 115200 bps UART communication. The built-in STM32G031G8U6 microcontroller and two HY2.0-4P connectors enable easy integration with M5Stack Chain devices.
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Product description: Chain PIR - PIR motion sensor - STM32G031- M5Stack U225
The M5Stack Chain PIR is an input module used to detect motion and human activity based on changes in infrared radiation. It utilizes the AS312 pyroelectric sensor , offering a detection range of up to 2.4 m and a detection angle of -60° to 60° . An integrated programmable WS2812C RGB LED can additionally provide information about device status or motion detection. Data processing is handled by an STM32G031G8U6 microcontroller , and communication with the controller is via UART at 115,200 bps. Two HY2.0-4P ports allow the module to be connected to other M5Stack Chain devices.
Chain PIR - PIR motion sensor - STM32G031- M5Stack U225.
Botland is an official distributor of the M5Stack module family in Poland. We have extended this system of stackable functional devices with accessories from our range and numerous blog guides. All M5Stack products presented here are original.
M5Stack Chain PIR is suitable for projects requiring automatic motion detection and response to the appearance of a person in the monitored area.
Main features of the Chain PIR module
- AS312 pyroelectric PIR sensor : detects the movement of people and other objects emitting infrared radiation
- Detection range up to 2.4 m : allows monitoring of small rooms, stations and zones near the device
- Detection angle from -60° to 60° : provides a wide field of motion detection
- Programmable RGB diode : WS2812C chip enables visual indication of the sensor status
- STM32G031G8U6 microcontroller : responsible for processing data from the sensor and handling communication
- UART communication : data transmission is at a speed of 115200 bps in 8N1 configuration
- Two operating modes : the module can automatically report a change in PIR status or respond to controller queries
- Daisy chain connection : two HY2.0-4P connectors allow you to connect additional M5Stack Chain devices
- Arduino and UIFlow2 support : the manufacturer provides a library, sample programs and programming documentation
- Low power consumption : during operation, the module consumes approximately 10.74 mA at a voltage of 5 V
M5Stack U225 Technical Specifications
- Microcontroller: STM32G031G8U6
- Sensor: AS312 - pyroelectric infrared sensor
- Supply voltage: 5 V DC
- Communication: UART
- UART parameters: 115200 bps, 8N1
- Interface: 2 x HY2.0-4P
- RGB diode: 1 x WS2812C
- Maximum detection range: 2.4 m
- Detection angle: -60° to 60°
- Detection interval / trigger hold time: 2 s
- Current consumption during operation: 10.74 mA at 5 V
- Operating modes: automatic reporting, query mode
- RGB diode pinout: PA8
- PIR sensor pinout: PB0
- UART1: PB6 - TXD1, PB7 - RXD1
- UART2: PA2 - TXD2, PA3 - RXD2
- Dimensions: 23.9 x 23.9 x 22.3 mm
- Weight: 6.8 g
Contents of the set
- 1 x M5Stack Chain PIR
- 1 x Chain Bridge
The set includes a Chain Bridge that allows you to easily connect adjacent components.
Useful links
| Name | Value |
|---|---|
| Width | 9.5 cm |
| Height | 14 cm |
| Depth | 2.3 cm |
| Weight | 0.01 kg |
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30 days to return, without giving a reason
If the product does not meet your expectations, you have 30 days from receiving the parcel to withdraw from the contract. The product only has to be complete. The right of return belongs to consumers (a purchase unrelated to business activity).
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If the product turns out to be faulty, you can make a claim under the guarantee or the statutory warranty. We handle claims without delay, at the latest within 14 working days of receiving the report together with the goods.
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This product is a component intended for further assembly or prototyping. It is not a finished product within the meaning of the product safety regulations.
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