Overview Of The Xm122/Xb122/Xa122 Iot Module Evaluation Kit; Introduction - Acconeer XM122 Hardware User's Manual

1. Overview of the XM122/XB122/XA122 IoT Module
Evaluation Kit

1.1. Introduction

The XM122/XB122/XA122 IoT Module Evaluation Kit (The EVK) is a development platform that is
optimized for IoT use cases where low power is important, and the device is expected to run on
battery.
The EVK features Acconeer's A111 radar sensor. This is an optimized low-power, high-precision 60
GHz radar with antenna in package (AiP) and integrated baseband. Together with the low power
nRF52840 Bluetooth SoC, the XM122 IoT module becomes a powerful radar sensor for IoT
applications.
The A111 is based on pulsed coherent radar technology (PCR). It has leading-edge patented sensor
technology with pico-second time resolution. The A111 sets a new benchmark as far as power
consumption and distance accuracy are concerned and it comes fully integrated in a small package of
29 mm 2 .
The A111 can measure absolute distance with mm accuracy up to a range of 2 m with a continuous
sweep update frequency of up to 600 Hz. With the use of a dielectric lens the range can be
significantly longer.
The A111, 60 GHz radar is not compromised by natural sources of interference such as noise, dust,
color, direct or indirect light.
The EVK consists of

1 XM122 IoT Module including an nRF52840

1 XB122 Breakout board to enable easy flashing and logging.

1 XA122 Battery board, optional part that can be used for PoC or similar where form factor is
key.
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2020-06-12
IoT module EVK hardware user guide
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