2 layers80.6 × 80.5 mm
4 layers80.5 × 80.5 mm
- Size
- 80.5 × 80.5 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 41
- Nets
- 78
- Pads
- 218
- Tracks, vias
- 704, 425
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 29 Jun 2024
- Updated
- 1 Sep 2026
Overview
OBCv2 is an open-source printed circuit board by AfriOrbit, from the AfriOrbit/EduSat-Project repository on GitHub. It is a 4-layer board of 80.5 × 80.5 mm with 41 parts on 78 nets, routed with 704 tracks and 425 vias.
It is built around the ESP32-S3-WROOM-1-N16R8, AMS1117-3.3 and SP0503BAHTG. Its parts include 10 capacitors, 7 resistors, 4 connectors, 3 diodes and 2 ICs. It belongs with the ESP32 boards of this library.
Main components
3
ESP32-S3-WROOM-1-N16R8
SMD,25.5x18mm-103.5dBm -40℃~+65℃ 2.4GHz 20.5dBm 355mA 3V~3.6V 95mA ESP32-S3R8 On-board PCB Antenna UART、SPI、I2C、GPIO、I2S、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
SP0503BAHTG
SOT-143-55℃~+125℃ 10A@8/20us 14V 150W@8/20us 30pF、60pF 5.5V 6V 80nA ESD IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Three channels Unidirectional SOT-143 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
Parts
41| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 0u1F | Capacitor_SMD:C_0805_2012Metric | C3, C5, C6, C10 |
| 4 | 10K | Resistor_SMD:R_0402_1005Metric | R4, R5, R6, R7 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 2 | 10pF | Capacitor_SMD:C_0402_1005Metric | C11, C12 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric | C7, C8 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | LED | LED_SMD:LED_0603_1608Metric | D4, D5 |
| 2 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1, SW2 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric | R3 |
| 1 | 22uF | Capacitor_SMD:C_0805_2012Metric | C4 |
| 1 | 22uF/16V | Capacitor_SMD:C_0805_2012Metric | C9 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | Ai-Thinker-Ra-02 | RF_Module:Ai-Thinker-Ra-01-LoRa | U3 |
| 1 | Conn_02x20_Odd_Even | Connector_PinSocket_2.54mm:PinSocket_2x20_P2.54mm_Vertical | J1 |
| 1 | ESP32-S3-WROOM-1-N16R8 | ESP32-S3-WROOM-1-N16R8:ESP32S3WROOM1N8R2 | X1 |
| 1 | IDC Connector 2x10 20P | Connector_IDC:IDC-Header_2x10_P2.54mm_Horizontal | J2 |
| 1 | LOGO | LOGO | G*** |
| 1 | Micro_SD_Card | Connector_Card:microSD_HC_Hirose_DM3D-SF | J4 |
| 1 | SP0503BAHT | Package_TO_SOT_SMD:SOT-143 | D2 |
| 1 | TP1_3V3 | TestPoint:TestPoint_Pad_1.0x1.0mm | TP1 |
| 1 | TP2_USB | TestPoint:TestPoint_Pad_1.0x1.0mm | TP2 |
| 1 | TP3_GND | TestPoint:TestPoint_Pad_1.0x1.0mm | TP3 |
| 1 | TP4_3V3REG | TestPoint:TestPoint_Pad_1.0x1.0mm | TP4 |
| 1 | TP5_3V3CONN | TestPoint:TestPoint_Pad_1.0x1.0mm | TP5 |
| 1 | TP6_5V | TestPoint:TestPoint_Pad_1.0x1.0mm | TP6 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Wuerth_629105150521 | J3 |
| 1 | WE-XTAL_85SMX | WE-XTAL_85SMX:WE-XTAL_85SMX | Y1 |
Questions
How big is the OBCv2 PCB?
It measures 80.5 × 80.5 mm and has 4 copper layers, 1.6 mm thick.
What parts does the OBCv2 use?
41 parts, built around the ESP32-S3-WROOM-1-N16R8, AMS1117-3.3 and SP0503BAHTG. 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 OBCv2 KiCad files?
From the AfriOrbit/EduSat-Project repository on GitHub, at the commit this page was made from: the board is EduSat v3/OBCV2/OBCv2.kicad_pcb and its schematic EduSat v1/SensorBoardv2/SensorSchem.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the OBCv2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask AfriOrbit before reusing the design.
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