# Radar Sensor XM125 ## Description Turn a PC or Raspberry Pi into a radar lab. Plug-and-play USB-C, protected data lines, dual serial channels, and full access to reset/boot/I2C/UART/SWD for demos, evaluation, and algorithm prototyping. ## Project Details - **Owner:** vasy_skral - **Created:** 12/30/2025 - **Last Updated:** 2/4/2026 - **Visibility:** Public - **License:** https://creativecommons.org/licenses/by/4.0/ - **Stars:** 3 - **Forks:** 2 ## Key Components ### BOOT — [PTS815](https://www.flux.ai/vasy_skral/pts815~6b.md) - Datasheet URL: https://www.ckswitches.com/media/2728/pts815.pdf - Part Type: Switch - Manufacturer Name: C&K - Manufacturer Part Number: PTS815 SJM 250 SMTR LFS **Pins:** - ~1 [pin 1] - ~2 [pin 2] - ~3 [pin 3] - ~4 [pin 4] ### D1 — [WE-TVS-82400102](https://www.flux.ai/vasy_skral/we-tvs-82400102~xt.md) - Part Type: Protection - Manufacturer Name: Würth Elektronik - Datasheet URL: https://katalog.we-online.de/pbs/datasheet/82400102.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 82400102 **Pins:** - GND [pin 2] - IO1 [pin 6] - IO1 [pin 1] - IO2 [pin 4] - IO2 [pin 3] - VDD [pin 5] ### J1 — [TSM-110-01-T-DV](https://www.flux.ai/adrian95/tsm-110-01-t-dv~nkw.md) - Manufacturer Name: SAMTEC - Datasheet URL: https://suddendocs.samtec.com/catalog_english/tsm.pdf - Manufacturer Part Number: TSM-110-01-T-DV - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Package or Case Code: TSM-110-YY-ZZZ-DV **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 2 [pin 2] - 20 [pin 20] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J2 — [TYPE-C-31-M-12](https://www.flux.ai/vasy_skral/type-c-31-m-12~75f.md) - License: https://creativecommons.org/licenses/by/4.0/ - Symbol Style: Parametric - Manufacturer Part Number: TYPE-C-31-M-12 - Part Type: Connector - Datasheet URL: https://en.krhro.com/npublic/opdfjs/web/viewer.html?file=https%3A%2F%2Fomo-oss-file.thefastfile.com%2Fportal-saas%2Fnew2023011311465142457%2Fcms%2Ffile%2F95f41c83-14fa-41cb-9f86-8d6a717317e5.pdf - Manufacturer Name: Korean Hroparts Elec **Pins:** - CC1 [pin A5] - CC2 [pin B5] - DN1 [pin A7] - DN2 [pin B7] - DP1 [pin A6] - DP2 [pin B6] - GND [pin B1A12] - GND [pin A1B12] - SBU1 [pin A8] - SBU2 [pin B8] - SHIELD [pin S3] - SHIELD [pin S1] - SHIELD [pin S4] - SHIELD [pin S2] - VBUS [pin B4A9] - VBUS [pin A4B9] ### RST — [PTS815](https://www.flux.ai/vasy_skral/pts815~6b.md) - Manufacturer Part Number: PTS815 SJM 250 SMTR LFS - Manufacturer Name: C&K - Part Type: Switch - Datasheet URL: https://www.ckswitches.com/media/2728/pts815.pdf **Pins:** - ~1 [pin 1] - ~2 [pin 2] - ~3 [pin 3] - ~4 [pin 4] ### SWD — [FTSH-105-01-F-DV-K](https://www.flux.ai/jecstronic/ftsh-105-01-f-dv-k~kgx.md) - Manufacturer Name: Texas Instruments Inc. - Datasheet URL: https://suddendocs.samtec.com/catalog_english/ftsh_smt.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Manufacturer Part Number: FTSH-105-01-F-DV-P-TR **Pins:** - 01 [pin 01] - 02 [pin 02] - 03 [pin 03] - 04 [pin 04] - 05 [pin 05] - 06 [pin 06] - 07 [pin 07] - 08 [pin 08] - 09 [pin 09] - 10 [pin 10] ### U1 — [XM125](https://www.flux.ai/vasy_skral/xm125~6ah.md) - Manufacturer Name: Acconeer AB - Package or Case Code: XM125_ACC - Manufacturer Part Number: XM125 - Part Type: Sensor - Datasheet URL: https://www.digikey.com/en/models/17883267 - Symbol Style: Parametric - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1V8 [pin 3] - DEBUG_UART_RX [pin 21] - DEBUG_UART_TX [pin 23] - GROUND [pin 4] - GROUND [pin 27] - GROUND [pin 2] - GROUND [pin 16] - GROUND [pin 19] - GROUND [pin 7] - GROUND [pin 13] - GROUND [pin 10] - GROUND [pin 22] - I2C_ADDRESS [pin 20] - I2C_SCL [pin 17] - I2C_SDA [pin 18] - MCU_INT [pin 28] - MISC_GPIO0 [pin 24] - MISC_GPIO1 [pin 25] - MISC_GPIO2_BOOT0 [pin 26] - NRESET [pin 14] - SWD_CLK [pin 12] - SWD_IO [pin 11] - UART_CTS [pin 8] - UART_RTS [pin 9] - UART_RX [pin 6] - UART_TX [pin 5] - VIN [pin 1] - WAKE_UP [pin 15] ### U2 — [CP2105-F01-GMR](https://www.flux.ai/lcsc/cp2105-f01-gmr~787l.md) - Product Info Url: https://lcsc.com/product-detail/USB_SILICON-LABS_CP2105-F01-GMR_CP2105-F01-GMR_C109102.html - Manufacturer Part Number: CP2105-F01-GMR - Package or Case Code: QFN-24_L4.0-W4.0-P0.50-BL-EP2.6 - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2411271753_SKYWORKS-SILICON-LABS-CP2105-F01-GMR_C109102.pdf - LCSC Part Number: C109102 - Manufacturer Name: SKYWORKS/SILICON LABS(芯科) - JLCPCB Part Class: Extended Part - Symbol Style: Parametric - Part Type: USB ICs **Pins:** - ~{RST} [pin 9] - ~{SUSPEND}/RI_ECI [pin 17] - ~{SUSPEND}/RI_SCI [pin 1] - CTS_ECI [pin 10] - CTS_SCI [pin 18] - D- [pin 4] - D+ [pin 3] - EXP [pin 25] - GND [pin 2] - GPIO.0_ECI/DTR_ECI [pin 15] - GPIO.0_SCI/DCD_SCI [pin 24] - GPIO.1_ECI/DSR_ECI [pin 14] - GPIO.1_SCI/DTR_SCI [pin 23] - GPIO.2_SCI/DSR_SCI [pin 22] - NC/DCD_ECI/VPP [pin 16] - REGIN [pin 7] - RTS_ECI [pin 11] - RTS_SCI [pin 19] - RXD_ECI [pin 12] - RXD_SCI [pin 20] - TXD_ECI [pin 13] - TXD_SCI [pin 21] - VBUS [pin 8] - VDD [pin 6] - VIO [pin 5] ### U3 — [NCP161ASN330T1G](https://www.flux.ai/lcsc/ncp161asn330t1g~2q57.md) - Manufacturer Part Number: NCP161ASN330T1G - Manufacturer Name: onsemi(安森美) - LCSC Part Number: C892187 - JLCPCB Part Class: Extended Part - Package or Case Code: SOT-23-5_L2.9-W1.6-P0.95-LS2.8-BR **Pins:** - EN [pin 3] - GND [pin 2] - IN [pin 1] - NC [pin 4] - OUT [pin 5] ### U4 — [NCP161ASN180T1G](https://www.flux.ai/lcsc/ncp161asn180t1g~0a26.md) - LCSC Part Number: C892183 - Package or Case Code: SOT-23-5_L2.9-W1.6-P0.95-LS2.8-BR - JLCPCB Part Class: Extended Part - Manufacturer Part Number: NCP161ASN180T1G - Manufacturer Name: onsemi(安森美) **Pins:** - EN [pin 3] - GND [pin 2] - IN [pin 1] - NC [pin 4] - OUT [pin 5] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/vasy_skral/radar-sensor-xm125~948](https://www.flux.ai/vasy_skral/radar-sensor-xm125~948).* --- *Generated from [https://www.flux.ai/vasy_skral/radar-sensor-xm125~948](https://www.flux.ai/vasy_skral/radar-sensor-xm125~948)*