2 layers
2 layers131.5 × 127.5 mm
BSPD 2
Sambit-cloud/KI_cadPCB design using Ki_cad
- Size
- 131.5 × 127.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 77
- Nets
- 95
- Pads
- 263
- Tracks, vias
- 414, 5
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 5 Oct 2025
- Updated
- 8 Jul 2026
Overview
BSPD 2 is an open-source printed circuit board by Sambit-cloud, from the Sambit-cloud/KI_cad repository on GitHub. It is a 2-layer board of 131.5 × 127.5 mm with 77 parts on 95 nets, routed with 414 tracks and 5 vias.
It is built around the MCP6541R, CD4072BE and LM7805CT, with the SN74HC08NE4 and SN74HC32NE4 among its other parts. Its parts include 21 resistors, 12 ICs, 5 connectors, 3 capacitors and 3 diodes.
Main components
5MCP6541R
UncategorisedMicrochip Technology
CD4072BE
DIP-14-55℃~+125℃ 1.5V~4V 1uA 2 3.4mA 3.4mA 3.5V~11V 3V~18V 4 4.95V、9.95V、14.95V 4000B Series 50mV 90ns@15V,50pF OR Gate DIP-14 Logic Gates ROHSTexas InstrumentsLogic Gates
LM7805CT
TO-2200℃~+70℃@(Ta) 1 1A 20V 2V@(1A) 40uV 5V 62dB@(120Hz) 8mA Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive TO-220 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsSN74HC08NE4
PDIP-14-40℃~+85℃ 1.5V、3.15V、4.2V 1.9V、4.4V、5.9V 100mV、260mV、330mV 2 20uA 25ns@4.5V,50pF 2V~6V 4 5.2mA 5.2mA 500mV、1.35V、1.8V 74HC AND Gate PDIP-14 Logic Gates ROHSTexas InstrumentsLogic GatesSN74HC32NE4
PDIP-141.5V~4.2V 20ns@6V,50pF 2V~6V 2uA 4 5.2mA 5.2mA 74HC Series OR Gate、AND Gate PDIP-14 Logic Gates ROHSTexas InstrumentsLogic Gates
Parts
77| Qty | Value | Footprint | References |
|---|---|---|---|
| 19 | Jumper_3_Open | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JP1, JP2, JP3, JP4, JP5, JP6, JP10, JP11, JP12, JP13, JP14, JP15, JP16, JP17, JP18, JP19 +3 |
| 12 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5, R6, R7, R8, R9, R10, R11, R12, R13, R16, R17, R18 |
| 7 | MCP6541 | Package_DIP:DIP-8_W7.62mm_Socket_LongPads | U1, U2, U3, U4, U6, U7, U9 |
| 7 | R_Potentiometer | Potentiometer_THT:Potentiometer_Bourns_3339P_Vertical_HandSoldering | RV1, RV2, RV3, RV4, RV5, RV6, RV8 |
| 4 | M4 | MountingHole:MountingHole_4.3mm_M4_DIN965_Pad | H1, H2, H3, H4 |
| 3 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R14, R20 |
| 2 | 34k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2, R4 |
| 2 | D | Diode_THT:D_DO-41_SOD81_P7.62mm_Horizontal | D1, D2 |
| 1 | 0.1u | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C3 |
| 1 | 0.33u | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C1 |
| 1 | 249R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R19 |
| 1 | 330u | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C2 |
| 1 | 47k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R15 |
| 1 | 4N35 | Package_DIP:DIP-6_W7.62mm | U8 |
| 1 | 500 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R21 |
| 1 | 9k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3 |
| 1 | BSPD_Output | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | BrakePressure_Sens_Input | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | CD4072BE | xnor_gate:DIP794W53P254L1930H508Q14N | IC1 |
| 1 | Current_Sensor_Input | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J2 |
| 1 | G5Q-1 | Relay_THT:Relay_SPDT_Omron-G5Q-1 | K1 |
| 1 | LED | LED_THT:LED_D3.0mm_Horizontal_O1.27mm_Z6.0mm | D3 |
| 1 | LM7805CT | lm7805:TO220-3_ONS | U12 |
| 1 | LOGO | LOGO | G*** |
| 1 | Q_NMOS_DGS | Package_TO_SOT_THT:TO-92_Inline | Q1 |
| 1 | SN74HC08NE4 | AND_GATE:DIP794W45P254L1969H508Q14 | U5 |
| 1 | SN74HC32NE4 | or_gate_4_again:DIP794W45P254L1969H508Q14 | U11 |
| 1 | Shutdown Line | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J4 |
| 1 | Voltage_Input | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J5 |
Questions
How big is the BSPD 2 PCB?
It measures 131.5 × 127.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the BSPD 2 use?
77 parts, built around the MCP6541R, CD4072BE, LM7805CT and SN74HC08NE4. 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 BSPD 2 KiCad files?
From the Sambit-cloud/KI_cad repository on GitHub, at the commit this page was made from: the board is BSPD_2.kicad_pcb and its schematic BSPD_2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the BSPD 2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask Sambit-cloud before reusing the design.
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