Evaluation kit board provides a development platform for the A121 pulsed coherent 60 GHz radar sensor. The board includes one onboard A121 sensor and four FFC connectors for optional XS121 satellite sensor boards, supporting configurations with up to five A121 sensors. It interfaces with the XC120 connector board, Raspberry Pi, and STM Nucleo-64 or Nucleo-144 development boards, and it is intended for Windows and Linux exploration workflows. The platform supports use cases up to 20 m range with millimeter absolute distance accuracy and sub-millimeter relative distance accuracy.
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| Product type | A121 radar sensor evaluation board |
| Onboard sensor | A121 pulsed coherent radar sensor |
| Radar frequency | 60GHz |
| Radar technology | Pulsed coherent radar |
| Maximum range | 20m |
| Absolute distance accuracy | Millimeter accuracy |
| Relative distance accuracy | Sub-millimeter accuracy |
| Host board compatibility | XC120, Raspberry Pi, STM Nucleo-64, STM Nucleo-144 |
| Onboard MCU | No |
| Additional sensor connectors | 4 FFC connectors for XS121 satellite boards |
| Maximum supported A121 sensors | 5 with optional XS121 boards |
| Sensor data interface | SPI |
| EEPROM interface | I2C |
| Operating system support | Windows and Linux |
| Power with XC120 | USB 5 V, 500 mA for complete EVK |
| USB streaming interface with XC120 | USB HS 2.0 |
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These are design resources that include the Acconeer AB XE121
Technical guide for integrating the Acconeer A121 radar sensor with host MCUs, covering hardware requirements, SPI communication, and Software Abstraction Layer (HAL) setup.
