Name: A121 60GHz mmWave radar Micro-Motion Detection module, based On Acconeer A121 Pulsed Coherent Radar (PCR) Sensor, supports high-precision distance measurements, Standard Version (Without Holder)
Brand: WaveShare Electronics
SKU: 33777
Price: 2420.00 INR
Availability: OutOfStock

A121 60GHz mmWave radar Micro-Motion Detection module, based On Acconeer A121 Pulsed Coherent Radar (PCR) Sensor, supports high-precision distance measurements, Standard Version (Without Holder)

WaveShare Electronics

A121 60GHz mmWave radar Micro-Motion Detection module, based On Acconeer A121 Pulsed Coherent Radar (PCR) Sensor, supports high-precision distance measurements, Standard Version (Without Holder)

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SKU: 33777
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A121 60GHz mmWave radar Micro-Motion Detection module, based On Acconeer A121 Pulsed Coherent Radar (PCR) Sensor, supports high-precision distance measurements, Standard Version (Without Holder)

The A121 Range Sensor is based on 60GHz Pulsed Coherent Radar (PCR) technology, enabling human presence and motion detection, supporting high-precision distance measurements. Its detection area and sensitivity parameters are configurable, offering excellent anti-interference capability. The module integrates an Arm Cortex-M4 MCU (STM32L431CBT6), allowing it to either function as a standalone unit with user applications directly deployed on the Acconeer RSS, or communicate with external host controllers via a register command protocol.

It features compact size, low power consumption, and easy integration, suitable for applications such as human presence detection, proximity sensing, contactless triggering, and vital signs monitoring.

User Manual / Datasheet / Example Codes Etc.

Features

A121 60GHz Pulsed Coherent Radar (PCR), integrated Baseband, RF front-end, and Antenna, supports human presence detection, micro-motion detection, and high-precision distance measurements
Integrated Arm Cortex-M4 MCU (STM32L431CBT6), up to 80MHz frequency, with 128KB Flash and 64KB RAM, supports local radar processing
Compact 39 × 39 (mm) dimensions with optimized antenna structure, enabling high gain and stable detection
3.3V IO interface power supply
Supports UART, I2C, and GPIO interfaces, outputting radar detection results based on a register protocol
Supports behind-plastic or behind-glass installation, enabling reliable operation without additional openings in the enclosure
Reserved PCB and SWD pads for RSS and user application development, as well as production line programming and testing
Operating temperature: -40°C ~ 85°C, suitable for industrial and harsh environments

Specifications

Hardware

Frequency band: 60GHz
Modulation Method: PCR
Power supply: 5V
IO Voltage: 3.3V
Output interface: USB / UART / I2C
UART baudrate: UART: 921.6kbps I2C: 100K / 400K
Operating temperature: -40°C ~ 85°C
outline dimensions: 39 × 39 (mm)

System Performance

Detection distance resolution: 0.03m at 25°C, Profile1
Detection angle: Horizontal: 53° Vertical: 65°
Detection accuracy: 0.03m at Profile1
Operating current (MAX): 5V 80mA

Package Includes

A121 Range Sensor x1
MX1.25 10PIN cable x1

Pinout Definition

Dimensions

Warranty Terms :

Branded products (Waveshare/ Raspberry Pi/ Radxa/ DWIN etc) are as per brand warranty terms. Generic products are eligible for replacement within 7 days of delivery based on following conditions.

Products are eligible for a replacement if there is physical damage during transit or a clear manufacturing defect. Any claim for damage/ wrong items/ replacement must be made within 48 hours of successful delivery of the product. Requests for refund of amount or exchange of product(s) will be reviewed on a case by case basis and HUBTRONICS carries final rights to take a final decision on refund, store credit or exchange.

What to take care of ?

Most of our products are technical in nature and require trained personnel to handle them. Any kind of mishandling can result in damage or malfunctioning of the product, it is not possible for us to provide a replacement or refund if the product is damaged due to technical or physical mishandling.

Who pays the return shipping cost?

Free of cost return pickup from delivery address is eligible for products categorized as manufacturing defect/ Damage in transit/ Wrong items delivered. We do not support return pickup for any B2B order or offline orders not placed on website. Buyer need to arrange return shipping for B2B orders.

What voids warranty?

Please note that replacement/ return or refund is not possible if the product is not compatible with your system/application. Please check all the technical details/ dimensions etc. before ordering and contact us for any kind of clarifications.

If product is soldered/ programmed at any point or physically altered in any way, it is not eligible for return/ replacement. If the item requires soldering for testing, please ensure that you use suitable clips or jig to test it without soldering. Any kind of soldering job makes the product ineligible for return or replacement.

Following items are not eligible for return under any circumstances