4 layers128.5 × 40 mm
Scalenode cm4-baseboard
antmicro/scalenode-cm4-baseboard
Baseboard for Raspberry Pi 4 Compute Module optimized for clustering
146 parts152Apache-2.0
4 layers80.1 × 22.2 mm
M2-smart iot module
antmicro/m2-smart-iot-module30https://antmicro.com/blog/2021/08/open-hardware-smart-m2-radio-module-for-iot/
- Size
- 80.1 × 22.2 mm
- Copper layers
- 4
- Thickness
- 0.75 mm
- Parts
- 212
- Nets
- 249
- Pads
- 856
- Tracks, vias
- 1,599, 435
- Pours
- 39
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 11 Aug 2021
- Updated
- 7 Oct 2026
Overview
M2-smart iot module is an open-source printed circuit board by antmicro, from the antmicro/m2-smart-iot-module repository on GitHub, published under the Apache-2.0 licence. It is a 4-layer board of 80.1 × 22.2 mm with 212 parts on 249 nets, routed with 1,599 tracks and 435 vias.
It is built around the NRF52840-QIAA-R, BME280 and FT4232H-56Q-REEL, with the MIC2877-5.0YFT-TR, SST25VF512A-33-4I-SAE and UPD720201K8-711-BAC-A among its other parts. Its parts include 87 capacitors, 74 resistors, 12 ICs, 6 inductors and 4 crystals. It belongs with the home automation and IoT and radio and wireless boards and the nRF52 and nRF5x boards of this library.
Main components
12
NRF52840-QIAA-R
AQFN-73-EP(7x7)-95dBm 1.7V~5.5V 2.4GHz 2.4GHz~2.4835GHz 2Mbps 4.82mA 6.26mA 8dBm SPI、USB、UART、ADC、I2S、PWM ZigBee、Bluetooth、LoRa、ISM transceiver AQFN-73-EP(7x7) RF Transceiver ICs ROHSNORDICRF Transceiver ICs
BME280
LGA-8(2.5x2.5)-40℃~+85℃ 0%RH~100%RH 1.71V~3.6V 1.8uA 16bit I2C、SPI ±0.5℃ ±3%RH LGA-8(2.5x2.5) Temperature and Humidity Sensor ROHSBoschTemperature And Humidity Sensor
FT4232H-56Q-REEL
QFN-56-EP(8x8)-40℃~+85℃ 3.3V 4 480Mbps USB 2.0 USB to UART、USB to FIFO QFN-56-EP(8x8) USB Converters ROHSFTDIUSB Converters
MIC2877-5.0YFT-TR
UQFN-8(2x2)-40℃~+85℃@(TA) 1 125uA 2.5V~5.5V 2A 2MHz 5V Boost Boost Built-in Fixed Overcurrent Protection、Light load efficient mode、Load disconnect、Protection latch、Operating status indication、Cycle-by-cycle current limiting Yes UQFN-8(2x2) DC-DC Converters ROHSMicrochip TechnologyDC-DC Converters
SST25VF512A-33-4I-SAE
SOIC-8-40℃~+85℃ 100 Years 100,000 cycles 2.7V~3.6V 25ms 33MHz 512Kbit 8uA SPI SOIC-8 NOR FLASH ROHSMicrochip TechnologyNOR FLASH
UPD720201K8-711-BAC-A
QFN-68(8x8)QFN-68(8x8) USB ConvertersRenesas ElectronicsUSB Converters
93LC56CT-IMC
UncategorisedMicrochip Technology
AP2120N-1.8TRG1
SOT-23-40℃~+85℃@(Tj) 1 1.8V 150mA 25uA 30uVrms 500mV@(150mA) 6V 99dB@(1kHz) Fixed Over Current Protection、Over Temperature Protection、Short Circuit Protection Positive SOT-23 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
G313-06329-00
UncategorisedCoral
0402X104K6R3CT
0402100nF 6.3V X5R ±10% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSWalsin TechnologyMultilayer Ceramic Capacitors MLCC - SMD/SMT
ERJ2GE0R00X
0402-100ppm/℃~+600ppm/℃ -55℃~+155℃ 0Ω 100mW Thick Film Resistor 0402 Chip Resistor - Surface Mount ROHSPanasonicChip Resistor - Surface MountCRCW040210K0FKEDHP
0402-55℃~+155℃ 10kΩ 200mW 50V Thick Film Resistor ±1% ±100ppm/℃ 0402 Chip Resistor - Surface Mount ROHSVishay IntertechnologyChip Resistor - Surface Mount
README
README.mdM.2 Smart IoT Module
Copyright (c) 2020-2026 Antmicro
Overview
This project contains PCB design files of the smart IoT module in an M.2 form factor. The module is an experimental platform that combines a programmable Nordic radio SoC with Google Coral Edge AI accelerator. The design files were prepared in KiCad.
Repository structure
The main repository directory contains KiCad PCB project files, a LICENSE and a README. The remaining files are stored in the following directories:
lib- contains the component librariesimg- contains graphics for this READMEfab- contains overrides for board visualization
Key Features
- Google Coral Edge TPU Accelerator Module
- Nordic Semiconductor nRF52840 Radio SoC
- On-board PCIe-USB bridge
- On-board FTDI chip for nRF52840 programming, debugging and serial communication
- M.2 key B+M form factor
- 22 x 80 mm (0.87 x 3.15 inch) PCB outline
License
Parts
212| Qty | Value | Footprint | References |
|---|---|---|---|
| 35 | C_100n_0402 | m2-smart-iot-module-footprints:0402-cap | C1, C3, C10, C13, C17, C18, C25, C26, C27, C28, C29, C33, C34, C36, C39, C41 +19 |
| 26 | R_0R_0402 | m2-smart-iot-module-footprints:0402-res | R15, R16, R23, R24, R25, R26, R30, R32, R45, R46, R49, R50, R51, R52, R63, R64 +10 |
| 19 | R_10k_0402 | m2-smart-iot-module-footprints:0402-res | R2, R3, R5, R6, R10, R11, R12, R13, R18, R27, R29, R55, R57, R58, R60, R62 +3 |
| 13 | C_10n_0402 | m2-smart-iot-module-footprints:0402-cap | C2, C4, C5, C9, C11, C14, C15, C16, C19, C20, C21, C22, C23 |
| 13 | TP_SMD1MM | m2-smart-iot-module-footprints:Testpoint_smd_1mm | TP1, TP2, TP11, TP12, TP16, TP17, TP18, TP19, TP23, TP25, TP26, TP27, TP28 |
| 6 | C_22u_0805_10V | m2-smart-iot-module-footprints:0805-cap | C60, C62, C65, C66, C73, C75 |
| 5 | C_1u_0402 | m2-smart-iot-module-footprints:0402-cap | C35, C42, C53, C54, C56 |
| 4 | C_10u_0805 | m2-smart-iot-module-footprints:0805-cap | C8, C30, C78, C85 |
| 4 | C_8p_0402 | m2-smart-iot-module-footprints:0402-cap | C12, C24, C45, C49 |
| 4 | R_2k2_0402 | m2-smart-iot-module-footprints:0402-res | R20, R40, R41, R56 |
| 3 | C_330u_EEF-SX | m2-smart-iot-module-footprints:Panasonic_Electronic_Components-CD-0-0-MFG | C58, C61, C64 |
| 3 | C_4u7_0402 | m2-smart-iot-module-footprints:0402-cap | C31, C32, C40 |
| 2 | BLM21PG600SN | m2-smart-iot-module-footprints:0805-res | FB1, FB2 |
| 2 | C_12p_0402 | m2-smart-iot-module-footprints:0402-cap | C46, C48 |
| 2 | C_18p_0402 | m2-smart-iot-module-footprints:0402-cap | C83, C84 |
| 2 | KP-1608CGCK | m2-smart-iot-module-footprints:LED0603 | D1, D3 |
| 2 | PTS840_GK_SMTR_LFS | m2-smart-iot-module-footprints:CK-PTS840_GK_SMTR_LFS-0 | SW1, SW2 |
| 2 | R_100k_0402 | m2-smart-iot-module-footprints:0402-res | R14, R36 |
| 2 | R_12k_0402 | m2-smart-iot-module-footprints:0402-res | R38, R59 |
| 2 | R_1k_0402 | m2-smart-iot-module-footprints:0402-res | R53, R54 |
| 2 | R_200k_0402 | m2-smart-iot-module-footprints:0402-res | R33, R43 |
| 2 | R_330R_0402 | m2-smart-iot-module-footprints:0402-res | R19, R44 |
| 2 | ~ | m2-smart-iot-module-footprints:0402-res | R47, R48 |
| 1 | 1285AS-H-2R2M=P2 | m2-smart-iot-module-footprints:0805-res | L6 |
| 1 | 2X05 | m2-smart-iot-module-footprints:ARM_SWD | J2 |
| 1 | 93LC56CT-IMC | m2-smart-iot-module-footprints:DFN-8_2x3mm | U11 |
| 1 | ABM11W-101-32.0000MHZ-T3 | m2-smart-iot-module-footprints:Abracon-ABM11W-0-0-0 | Y2 |
| 1 | ABM8G-12M-18-D2Y-T | m2-smart-iot-module-footprints:KX-7 | Y4 |
| 1 | ABS06-32.768KHZ-9-1-T | m2-smart-iot-module-footprints:Abracon-ABS06-32.768KHZ-T-0 | Y3 |
| 1 | ANT-2.45-CHP-T | m2-smart-iot-module-footprints:Linx-ANT-2.45-CHP-T-MFG | ANT1 |
| 1 | AP2120N-1.8TRG1 | m2-smart-iot-module-footprints:SOT-23-3 | U5 |
| 1 | AP22652W6-7 | m2-smart-iot-module-footprints:SOT-23-6 | U6 |
| 1 | APHF1608LSEEQBDZGKC | m2-smart-iot-module-footprints:LED_APHF1608LSEEQBDZGKC | D2 |
| 1 | BME280 | m2-smart-iot-module-footprints:Pressure_Sensor_LGA-8_2.5x2.5mm_BME280 | U8 |
| 1 | BSS123 | m2-smart-iot-module-footprints:SOT-23-3 | Q1 |
| 1 | C_0p5_0402 | m2-smart-iot-module-footprints:0402-cap | C50 |
| 1 | C_0p8_0402 | m2-smart-iot-module-footprints:0402-cap | C47 |
| 1 | C_100p_0402 | m2-smart-iot-module-footprints:0402-cap | C37 |
| 1 | C_10u_0603 | m2-smart-iot-module-footprints:0603-cap | C87 |
| 1 | C_1p2_0402 | m2-smart-iot-module-footprints:0402-cap | C52 |
| 1 | C_22u_0603 | m2-smart-iot-module-footprints:0603-cap | C57 |
| 1 | C_2n2_0402 | m2-smart-iot-module-footprints:0402-cap | C63 |
| 1 | C_47n_0402 | m2-smart-iot-module-footprints:0402-cap | C43 |
| 1 | C_820p_0402 | m2-smart-iot-module-footprints:0402-cap | C38 |
| 1 | CoralAccelerator | m2-smart-iot-module-footprints:MODULE_G313-06329-00 | U3 |
| 1 | FT4232H-56Q | m2-smart-iot-module-footprints:QFN-56-1EP_8x8mm_P0.5mm_EP5.5.9x5.9mm | U1 |
| 1 | L_10u_250mA_0603 | m2-smart-iot-module-footprints:0603-res | L1 |
| 1 | L_10u_80mA_0603 | m2-smart-iot-module-footprints:0603-res | L2 |
| 1 | L_15n_0402 | m2-smart-iot-module-footprints:0402-res | L3 |
| 1 | L_4n7_0402 | m2-smart-iot-module-footprints:0402-res | L4 |
| 1 | M.2-M+B-Pins | m2-smart-iot-module-footprints:M.2-M+B-Keys | J3 |
| 1 | MIC2877-5.0YFT-TR | m2-smart-iot-module-footprints:FTQFN | U10 |
| 1 | MM8130-2600RA2 | m2-smart-iot-module-footprints:Murata-MM8130-2600RA2-MFG | J1 |
| 1 | NCP1599MNTWG | m2-smart-iot-module-footprints:DFN-6_3x3mm_EP1 | U9 |
| 1 | NRF52840 | m2-smart-iot-module-footprints:Nordic_Semiconductor-NRF52840-QIAA-R-0-0-MFG | U4 |
| 1 | NX3225SA-24M | m2-smart-iot-module-footprints:NDK-NX3225SA-0-0-MFG | Y1 |
| 1 | PCB_Mount_Hole_M2 | m2-smart-iot-module-footprints:M.2-Stud | MP1 |
| 1 | RF_Capacitor | m2-smart-iot-module-footprints:0402-cap | C51 |
| 1 | R_0R_0805 | m2-smart-iot-module-footprints:0805-res | R39 |
| 1 | R_17k4_0402 | m2-smart-iot-module-footprints:0402-res | R42 |
| 1 | R_1M0_0402 | m2-smart-iot-module-footprints:0402-res | R28 |
| 1 | R_1k2_0402 | m2-smart-iot-module-footprints:0402-res | R22 |
| 1 | R_1k6_0402 | m2-smart-iot-module-footprints:0402-res | R4 |
| 1 | R_390R_0402 | m2-smart-iot-module-footprints:0402-res | R21 |
| 1 | R_3k74_0402 | m2-smart-iot-module-footprints:0402-res | R35 |
| 1 | R_470R_0402 | m2-smart-iot-module-footprints:0402-res | R61 |
| 1 | R_4R7_0402 | m2-smart-iot-module-footprints:0402-res | R17 |
| 1 | R_4k7_0402 | m2-smart-iot-module-footprints:0402-res | R31 |
| 1 | R_680R_0402 | m2-smart-iot-module-footprints:0402-res | R1 |
| 1 | R_8k2_0402 | m2-smart-iot-module-footprints:0402-res | R37 |
| 1 | R_910k_0402 | m2-smart-iot-module-footprints:0402-res | R34 |
| 1 | SRP2512A-1R0M | m2-smart-iot-module-footprints:SRP2512A-1R0M | L5 |
| 1 | SST25VF512A | m2-smart-iot-module-footprints:SOIC8-SST25VF512A-33-4I-SAE-Level_B | U2 |
| 1 | TLV803EF29DBZR | m2-smart-iot-module-footprints:SOT-23-3 | U7 |
| 1 | TP | m2-smart-iot-module-footprints:TP-R-1.5 | TP3 |
| 1 | UPD720201K8-711-BAC-A | m2-smart-iot-module-footprints:QFN40P800X800X90-69N-D | IC1 |
| 1 | antmicro_logo | m2-smart-iot-module-footprints:antmicro-logo_scaled_12mm | N1 |
| 1 | oshw_logo | m2-smart-iot-module-footprints:OSHW-Logo2_7.3x6mm_Copper_Mask | N2 |
Questions
How big is the M2-smart iot module PCB?
It measures 80.1 × 22.2 mm and has 4 copper layers, 0.75 mm thick.
What parts does the M2-smart iot module use?
212 parts, built around the NRF52840-QIAA-R, BME280, FT4232H-56Q-REEL and MIC2877-5.0YFT-TR. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the M2-smart iot module KiCad files?
From the antmicro/m2-smart-iot-module repository on GitHub, at the commit this page was made from: the board is m2-smart-iot-module.kicad_pcb and its schematic M2-Pins.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the M2-smart iot module design in my own project?
Its repository publishes it under the Apache-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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