2 layers
2 layers127 × 105.5 mm
BR mainBoard
matttt/balancebot20262- Size
- 127 × 105.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 76
- Nets
- 107
- Pads
- 401
- Tracks, vias
- 411, 41
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 16 Feb 2026
- Updated
- 28 Aug 2026
Overview
BR mainBoard is an open-source printed circuit board by matttt, from the matttt/balancebot2026 repository on GitHub. It is a 2-layer board of 127 × 105.5 mm with 76 parts on 107 nets, routed with 411 tracks and 41 vias.
It is built around the TCAN332D, TEENSY 4.1 and TLV62569DBV, with the PESD1CAN and SMAJ5.0A among its other parts. Its parts include 20 capacitors, 16 resistors, 8 connectors, 7 diodes and 5 ICs. It belongs with the computers and single-board computers boards and the ESP32 and NXP (LPC, Kinetis, i.MX RT) boards of this library.
Main components
5
TCAN332D
SOIC-8-40℃~+125℃ 1Mbps 3V~3.6V 60mA CAN Transceiver SOIC-8 CAN Transceivers ROHSTexas InstrumentsCAN Transceivers
TEENSY 4.1
Development Boards & Kits - ARM ModuleSparkFun ElectronicsUncategorised
TLV62569DBV
SOT-23-5-40℃~+125℃@(TJ) 1 1.5MHz 2.5V~5.5V 2A 600mV~5.5V Adjustable Buck Buck Built-in Yes SOT-23-5 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
PESD1CAN
SOT-23-65℃~+150℃ 11pF 1nA 2 200W@8/20us 24V 30.3V 3A@8/20us 70V Bidirectional ESD IEC 61000-4-2、IEC 61000-4-5 SOT-23 ESD and Surge Protection (TVS/ESD) ROHSNexperiaESD And Surge Protection (TVS/ESD)
SMAJ5.0A
DO-214AC(SMA)-65℃~+150℃ 400W@10/1000us 43.5A 5V 7V 800uA 9.2V TVS Unidirectional DO-214AC(SMA) ESD and Surge Protection (TVS/ESD) ROHSMDDESD And Surge Protection (TVS/ESD)
Parts
76| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 100 | Resistor_SMD:R_0805_2012Metric | R7, R8, R9, R11, R13, R15 |
| 6 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4, H5, H6 |
| 5 | 100n | Capacitor_SMD:C_0805_2012Metric | C7, C11, C13, C16, C19 |
| 4 | 10u | Capacitor_SMD:C_1206_3216Metric | C2, C5, C6, C8 |
| 4 | 1u | Capacitor_SMD:C_0805_2012Metric | C3, C14, C15, C18 |
| 4 | 60 | Resistor_SMD:R_0603_1608Metric | R10, R12, R14, R16 |
| 4 | JST | Connector_JST:JST_VH_B2PS-VH_1x02_P3.96mm_Horizontal | FEET_L1, FEET_R1, HIP_L1, HIP_R1 |
| 4 | PESD1CAN | Package_TO_SOT_SMD:SOT-23 | D4, D5, D6, D7 |
| 3 | 22u | Capacitor_SMD:C_1206_3216Metric | C4, C10, C12 |
| 2 | 100k | Resistor_SMD:R_0805_2012Metric | R1, R4 |
| 2 | 10n | Capacitor_SMD:C_0805_2012Metric | C17, C20 |
| 2 | 3.3k | Resistor_SMD:R_0805_2012Metric | R3, R6 |
| 2 | LED | LED_SMD:LED_0805_2012Metric | D2, D3 |
| 2 | TCAN332 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U4, U5 |
| 1 | 0 | Resistor_SMD:R_0805_2012Metric | R5 |
| 1 | 0.1u | Capacitor_SMD:C_0805_2012Metric | C9 |
| 1 | 100u | Capacitor_SMD:CP_Elec_6.3x5.4 | C1 |
| 1 | 2.2u | Inductor_SMD:L_Coilcraft_XAL4020-XXX | L1 |
| 1 | 3.3V_PINOUT | Connector_PinSocket_2.54mm:PinSocket_1x05_P2.54mm_Vertical | J7 |
| 1 | 3V3_TP | TestPoint:TestPoint_Loop_D2.50mm_Drill1.0mm | TP2 |
| 1 | 453k | Resistor_SMD:R_0805_2012Metric | R2 |
| 1 | 5VL_TP | TestPoint:TestPoint_Loop_D2.50mm_Drill1.0mm | TP1 |
| 1 | 5VP_TP | TestPoint:TestPoint_Loop_D2.50mm_Drill1.0mm | TP3 |
| 1 | 5V_PINOUT | Connector_PinSocket_2.54mm:PinSocket_1x05_P2.54mm_Vertical | J6 |
| 1 | ESP32_FEATHER_V2 | adafruit:ESP32_FEATHER_V2 | U3 |
| 1 | ESP_PG | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JP1 |
| 1 | ESP_left | Connector_PinSocket_2.54mm:PinSocket_2x12_P2.54mm_Vertical | J2 |
| 1 | ESP_right | Connector_PinSocket_2.54mm:PinSocket_2x16_P2.54mm_Vertical | J3 |
| 1 | GND | TestPoint:TestPoint_Loop_D2.50mm_Drill1.0mm | TP4 |
| 1 | GND_PINOUT | Connector_PinSocket_2.54mm:PinSocket_1x05_P2.54mm_Vertical | J8 |
| 1 | JST | Connector_JST:JST_PH_S4B-PH-K_1x04_P2.00mm_Horizontal | IMU1 |
| 1 | LOGO | LOGO | G*** |
| 1 | Power | Connector_JST:JST_VH_B2P-VH-FB-B_1x02_P3.96mm_Vertical | J1 |
| 1 | Q_PMOS_GSD | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | SMAJ5.0A | Diode_SMD:D_SMA | D1 |
| 1 | TEENSY_4.1 | Teensy:TEENSY41 | U2 |
| 1 | TLV62569DBV | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | Teensy_PG | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JP2 |
| 1 | Teensy_left | Connector_PinSocket_2.54mm:PinSocket_2x24_P2.54mm_Vertical | J4 |
| 1 | Teensy_right | Connector_PinSocket_2.54mm:PinSocket_2x24_P2.54mm_Vertical | J5 |
Questions
How big is the BR mainBoard PCB?
It measures 127 × 105.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the BR mainBoard use?
76 parts, built around the TCAN332D, TEENSY 4.1, TLV62569DBV and PESD1CAN. 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 BR mainBoard KiCad files?
From the matttt/balancebot2026 repository on GitHub, at the commit this page was made from: the board is hardware/BR_mainBoard.kicad_pcb and its schematic hardware/BR_mainBoard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the BR mainBoard design in my own project?
Its repository states no licence, so its author keeps all rights: ask matttt before reusing the design.
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