4 layers
4 layers27.5 × 35.8 mm
Robot cortex
Ocanath/robot-coprocessor-pcbESP32+STM32 Coprocessor. Standalone, with vendored PCB design out of the old coprocessor repository
- Size
- 27.5 × 35.8 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 91
- Nets
- 115
- Pads
- 424
- Tracks, vias
- 610, 183
- Pours
- 15
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 12 May 2026
- Updated
- 25 May 2026
Overview
Robot cortex is an open-source printed circuit board by Ocanath, from the Ocanath/robot-coprocessor-pcb repository on GitHub. It is a 4-layer board of 27.5 × 35.8 mm with 91 parts on 115 nets, routed with 610 tracks and 183 vias.
It is built around the STM32G431CBT6, ESP32-WROOM-32E-H4 and TLE9250XSJXUMA1, with the TPS63070RNM, CP2102N-A02-GQFN24R and DF52-4S-0.8H(21) among its other parts. Its parts include 38 capacitors, 20 resistors, 17 ICs, 9 diodes and 2 transistors. It belongs with the robots and motor control boards and the ESP32 and STM32 boards of this library.
Main components
12
STM32G431CBT6
LQFP-48(7x7)-40℃~+85℃ 1.71V~3.6V 128KB 12bit 12bit 170MHz 32 Bit 32KB 38 ARM Cortex-M4F Built-in FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
ESP32-WROOM-32E-H4
SMD,25.5x18mm-40℃~+105℃ -98dBm 112mA 2.4GHz 20dBm 239mA 3V~3.6V Bluetooth4.2 ESP32-DOWD-V3 On-board PCB Antenna UART、SDIO、SPI、I2C、GPIO SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
TLE9250XSJXUMA1
SOIC-8-40℃~+150℃ 4.5V~5.5V 5Mbps Transceiver SOIC-8 CAN Transceivers ROHSInfineon TechnologiesCAN Transceivers
TPS63070RNM
QFN152-V to 16-V Buck-Boost Converter With 3.6-A Switch CurrentTexas InstrumentsUncategorised
CP2102N-A02-GQFN24R
QFN-24-EP(4x4)-40℃~+85℃@(Ta) 1.3uA 3V~3.6V 9.5mA USB 2.0 USB to UART QFN-24-EP(4x4) USB Converters ROHSSilicon LabsUSB Converters
DF52-4S-0.8H(21)
SMD,P=0.8mm,卧贴-40℃~+85℃ 0.8mm 1 100V 1x4P 2A 4 4P Black Copper alloy Surface Mount, Right Angle UL94V-0 SMD,P=0.8mm,卧贴 Wire To Board Connector ROHSHirose ElectricWire To Board ConnectorTHVD2450VDRCREP
VSON-10(3x3)Enable shutdown、Overcurrent Protection、Thermal shutdown protection、Low-power mode、Tx/Rx enable、Hot-swap protection、Under-voltage lockout VSON-10(3x3) RS-485 / RS-422 ICs ROHSTexas InstrumentsRS-485 / RS-422 ICs
ECS-1633-480-BN-TR
SMD2016-4PSMD2016-4P Crystal Oscillators ROHSECSCrystal Oscillators
DF52-3S-0.8H(21)
SMD,P=0.8mm,卧贴100V 2.5A 3P Black Copper alloy Tin UL94V-0 SMD,P=0.8mm,卧贴 Wire To Board Connector ROHSHirose ElectricWire To Board Connector
DF52-8S-0.8H(21)
SMD,P=0.8mm,卧贴0.8mm 1 1.75mm 1x8P 2.77mm 8 8.6mm 8P Black Brass Surface Mount, Right Angle UL94V-0 SMD,P=0.8mm,卧贴 Wire To Board Connector ROHSHirose ElectricWire To Board Connector
SPX3819M5-L-5-0
SOT-23-5-40℃~+85℃@(Ta) 1 20V 350mV@(100mA) 500mA 5V 5uA 70dB@(1kHz) Fixed Over Current Protection、Over Temperature Protection、Enable Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTECH PUBLICVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
ESD9B3.3ST5G
SOD-923(0402)ESD And Surge Protection (TVS/ESD)TECH PUBLIC
Parts
91| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 100nF | robot-cortex:C_0402_1005Metric | C3, C6, C8, C10, C12, C14, C15, C19, C21, C23, C26, C35 |
| 8 | 10uF 0603 | robot-cortex:C_0603_1608Metric | C22, C24, C25, C27, C29, C30, C32, C33 |
| 7 | 10uF 0603 | robot-cortex:C_0603_1608Metric | C2, C5, C7, C9, C11, C13, C34 |
| 6 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C28, C31, C36, C37, C38 |
| 5 | 4.7uF | robot-cortex:C_0603_1608Metric | C4, C16, C17, C18, C20 |
| 5 | ESD9B3.3ST5G | robot-cortex:D_SOD-923 | D1, D2, D3, D8, D9 |
| 4 | DF52-4S-0.8H(21) | robot-cortex:DF52-4S-0.8H(21) | U5, U12, U13, U14 |
| 3 | 10k | robot-cortex:R_0402_1005Metric | R4, R5, R6 |
| 3 | 120 | robot-cortex:R_0402_1005Metric | R19, R20, R21 |
| 3 | THVD2450VDRCR | robot-cortex:THVD2410VDRCR | IC1, IC2, IC3 |
| 2 | 100k | robot-cortex:C_0402_1005Metric | R12, R15 |
| 2 | 150060GS84000 | robot-cortex:LED_0603_1608Metric | D4, D7 |
| 2 | 1uH | robot-cortex:L_1210_3225Metric | L1, L2 |
| 2 | 4.7k | robot-cortex:R_0402_1005Metric | R2, R18 |
| 2 | 470 | robot-cortex:R_0402_1005Metric | R3, R17 |
| 2 | NSR0530HT1G | robot-cortex:SOD2512X110N | D5, D6 |
| 2 | SSM3K15F,LF | robot-cortex:SOT-23-3 | Q1, Q2 |
| 2 | THRU_HOLE_PAD | robot-cortex:TEARDROP | M1, M2 |
| 2 | TPS63070 | robot-cortex:VQFN-TPS63070 | U10, U11 |
| 1 | 150k | robot-cortex:R_0402_1005Metric | R11 |
| 1 | 1k | robot-cortex:R_0402_1005Metric | R9 |
| 1 | 22k | robot-cortex:R_0402_1005Metric | R7 |
| 1 | 365k | robot-cortex:R_0402_1005Metric | R13 |
| 1 | 47.5k | robot-cortex:R_0402_1005Metric | R8 |
| 1 | 470k | robot-cortex:R_0402_1005Metric | R10 |
| 1 | 47k | robot-cortex:R_0402_1005Metric | R14 |
| 1 | 5.1k | robot-cortex:R_0402_1005Metric | R1 |
| 1 | C2901617 | robot-cortex:ECS-1633-480-BN-TR | U1 |
| 1 | CP2102N-A02-GQFN24R | robot-cortex:QFN50P400X400X80-25N | U9 |
| 1 | DF52-3S-0.8H(21) | robot-cortex:DF52-3S-0.8H(21) | U4 |
| 1 | DF52-8S-0.8H(21) | robot-cortex:DF52-8S-0.8H(21) | U7 |
| 1 | ESP32-WROOM-32E-H4 | robot-cortex:ESP32-WROOM-32 | U8 |
| 1 | SPX3819M5-L-5-0 | robot-cortex:SOT-23-5 | U6 |
| 1 | STM32G431CBT6 | robot-cortex:LQFP48-STM32 | U2 |
| 1 | TLE9250XSJXUMA1 | robot-cortex:SOIC8-TLE5009 | U3 |
| 1 | USB4110GFA | robot-cortex:GCT_USB4110GFA | J1 |
Questions
How big is the Robot cortex PCB?
It measures 27.5 × 35.8 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Robot cortex use?
91 parts, built around the STM32G431CBT6, ESP32-WROOM-32E-H4, TLE9250XSJXUMA1 and TPS63070RNM. 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 Robot cortex KiCad files?
From the Ocanath/robot-coprocessor-pcb repository on GitHub, at the commit this page was made from: the board is robot-cortex.kicad_pcb and its schematic 3V3-Supply.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Robot cortex design in my own project?
Its repository states no licence, so its author keeps all rights: ask Ocanath before reusing the design.
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