4 layers100 × 65 mm
Power control module
callumsnowden/emfkart
A "go-kart" made from aluminium extrusion using hoverboard parts & an ODrive for propulsion.
84 partsMIT
4 layers110 × 55 mm
Main interface board
callumsnowden/emfkartA "go-kart" made from aluminium extrusion using hoverboard parts & an ODrive for propulsion.
- Size
- 110 × 55 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 88
- Nets
- 79
- Pads
- 297
- Tracks, vias
- 723, 124
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 30 Aug 2023
- Updated
- 9 Jul 2026
Overview
Main interface board is an open-source printed circuit board by callumsnowden, from the callumsnowden/emfkart repository on GitHub, published under the MIT licence. It is a 4-layer board of 110 × 55 mm with 88 parts on 79 nets, routed with 723 tracks and 124 vias.
It is built around the SN65HVD232DR-JSM, SN74LV1T34DBV and LM1117MP-3.3, with the GSOT03C-E3-08, YX202-S-112DM and PESD2USB3UV-TR among its other parts. Its parts include 21 resistors, 18 connectors, 13 capacitors, 13 diodes and 6 transistors. It belongs with the interfaces and adapters boards and the STM32 boards of this library.
Main components
8
SN65HVD232DR-JSM
SOP-8-40℃~+125℃ 1 2mA 3.3V 5Mbps CAN Transceiver ESD protection、Thermal shutdown protection、Short-Circuit Protection SOP-8 CAN Transceivers ROHSJSMSEMICAN Transceivers
SN74LV1T34DBV
SOT-23-5-40℃~+125℃ 1 1 1.6V~5.5V 10uA 5.5ns@5V,15pF 74LV 8mA 8mA Level shifting Push-pull Unidirectional SOT-23-5 Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, Transceivers
LM1117MP-3.3
SOT-2230℃~+125℃@(Ta) 1 1.2V@(800mA) 15V 3.3V 5mA 75dB@(120Hz) 800mA 99uVrms Fixed Over Current Protection、Over Temperature Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
GSOT03C-E3-08
SOT-23-55℃~+150℃ 100uA 12.3V 2 3.3V 30A@8/20us 369W 4V 600pF ESD IEC 61000-4-2 Unidirectional SOT-23 ESD and Surge Protection (TVS/ESD) ROHSVishay IntertechnologyESD And Surge Protection (TVS/ESD)
YX202-S-112DM
插件,19.1x15.4mmPower RelaysYONGNENGPESD2USB3UV-TR
SOT-23-55℃~+125℃ 1.3pF 100nA 18V 20A@8/20us 350W@8/20us 5V 6.4V IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 SOT-23 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
SMAJ6.0A
DO-214AC(SMA)-65℃~+150℃ 10.3V 38.8A 400W@10/1000us 6V 7.37V 800uA IEC 61000-4-2、IEC 61000-4-4 TVS Unidirectional DO-214AC(SMA) ESD and Surge Protection (TVS/ESD) ROHSLittelfuseESD And Surge Protection (TVS/ESD)
TYPEC-304-ACP16
SMD-40℃~+85℃ 1 10000 times 16P 20V 3A 7.35mm Black Female Surface Mount, Right Angle Type-C SMD USB Connectors ROHSXUNPUUSB Connectors
README
README.mdemfkart
A "go-kart" made from aluminium extrusion using hoverboard parts & an ODrive for propulsion.
The History
This project began life as a work project that got scrapped. This ended up at my house (sans most of the controls) and was begging to be turned into something else.
The eventual aim for this is to be able to trundle around EMF Camp with a bunch of stuff in tow, because I'm lazy and it'd be a fun project (plus actually usable, well, hopefully).
Kart Features
Features I'd like include:
- Indicators
- Brake lights
- Headlights
- Some form of suspension?
- Maybe a horn
- Reversing beeper?
Hardware design
Electronics
The plan is to use an ODrive for motor control communicating over CAN bus to an STM32 based control board that'll handle the joystick and all the fun stuff (possibly including a nice orange plasma display if I can make it work).
Parts
88| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 10K | Resistor_SMD:R_0603_1608Metric | R1, R4, R8, R9, R10, R11, R12, R14, R16, R18, R20 |
| 6 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6 |
| 5 | D_Small | Diode_SMD:D_SMA | D3, D4, D5, D6, D7 |
| 5 | GSOT03C-E3-08 | Package_TO_SOT_SMD:SOT-23 | D8, D10, D11, D12, D13 |
| 5 | Screw_Terminal_01x03 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-3-5.0-H_1x03_P5.00mm_Horizontal | J5, J6, J7, J8, J9 |
| 5 | YX202-S-112DM | Relay_THT:Relay_SPST_SANYOU_SRD_Series_Form_A | K1, K2, K3, K4, K5 |
| 4 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C8, C9, C10, C13 |
| 4 | 5.1K | Resistor_SMD:R_0603_1608Metric | R2, R3, R6, R7 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C2, C3 |
| 3 | 470R | Resistor_SMD:R_0603_1608Metric | R13, R17, R19 |
| 3 | Screw_Terminal_01x02 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-2-3.5-H_1x02_P3.50mm_Horizontal | J11, J15, J16 |
| 3 | Screw_Terminal_01x03 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-3-3.5-H_1x03_P3.50mm_Horizontal | J12, J14, J17 |
| 2 | 10uF | Capacitor_SMD:C_0603_1608Metric | C11, C12 |
| 2 | 4.7uF | Capacitor_SMD:C_0402_1005Metric | C4, C5 |
| 1 | 10nF | Capacitor_SMD:C_0402_1005Metric | C6 |
| 1 | 120R | Resistor_SMD:R_0805_2012Metric | R15 |
| 1 | 180K | Resistor_SMD:R_0603_1608Metric | R21 |
| 1 | 1uF | Capacitor_SMD:C_0402_1005Metric | C7 |
| 1 | 1x02 2.54mm | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J10 |
| 1 | 24V 2A | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | Conn_01x05 | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J4 |
| 1 | Conn_02x01 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | Conn_02x08_Odd_Even | Connector_PinSocket_2.54mm:PinSocket_2x08_P2.54mm_Vertical | J2 |
| 1 | G*** | kibuzzard-65F97A32 | kibuzzard-65F97A32 |
| 1 | Jumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | JP1 |
| 1 | LED | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | LM1117MP-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U5 |
| 1 | PESD2USB3UV-TR | Package_TO_SOT_SMD:SOT-23 | D2 |
| 1 | R_Small | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | SMAJ6.0A | Diode_SMD:D_SMA | D9 |
| 1 | SN65HVD232DR | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | SN74LV1T34DBV | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | STM32F072C8Tx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | Screw_Terminal_01x02 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-2-5.0-H_1x02_P5.00mm_Horizontal | J18 |
| 1 | Screw_Terminal_01x04 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-4-3.5-H_1x04_P3.50mm_Horizontal | J13 |
| 1 | TYPEC-304-ACP16 | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J3 |
| 1 | WPME-FDSM 173010578 | sl-kicad-lib:WPME-FDSM_TypeF | U4 |
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Questions
How big is the Main interface board PCB?
It measures 110 × 55 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Main interface board use?
88 parts, built around the SN65HVD232DR-JSM, SN74LV1T34DBV, LM1117MP-3.3 and GSOT03C-E3-08. 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 Main interface board KiCad files?
From the callumsnowden/emfkart repository on GitHub, at the commit this page was made from: the board is hardware/main-interface-board/main-interface-board.kicad_pcb and its schematic hardware/brake-control-module/brake-control-module.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Main interface board design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).