A121
Acconeer AB
Describes how to implement each integration function needed to use the Acconeer sensor.
Design DocumentRaw Githubusercontent
Acconeer I2C Distance Detector User Guide
User guide for the Acconeer I2C Distance Detector application, detailing the register-based I2C interface for A121 radar sensors and XM125 modules.
Overview
This document provides a technical overview of the I2C Distance Detector application for Acconeer A121 pulsed coherent radar sensors and XM125 modules. It defines a register-based communication protocol over I2C, allowing a host microcontroller to configure radar parameters, perform calibrations, and retrieve distance results for up to 10 detected peaks. The guide covers register maps, command structures, power management via Wake Up/Interrupt pins, and low-power modes. Detailed register descriptions include distance result formats, signal quality settings, threshold methods, and peak sorting configurations.
Use Cases
- Integrating A121 radar sensors into embedded systems via I2C
- Configuring XM125 modules for multi-peak distance detection
- Implementing low-power distance sensing in battery-operated devices
- Developing host-side drivers for Acconeer radar applications
Topics
Acconeer AB
A121
XM125
I2C Distance Detector
Pulsed Coherent Radar
Register Map
Distance Measurement
Sensor Calibration