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ANUFS-BSPD-2026

chithigun23·ANUFS-BSPD-2026·bspd-kicad/bspd.kicad_pcb

ANUFS-BSPD-2026 PCB layout, top view — open source board by chithigun23
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About the ANUFS-BSPD-2026 PCB

ANUFS-BSPD-2026 is an open source PCB design by chithigun23, published on GitHub. It is a 4-layer board measuring 75.5 × 62 mm, with 115 components from 37 distinct parts.

Other key parts include the TLV1704AIPWR, SN74HC74DR, LM1117MP-5.0, SN74LVC2G14DBVR and SN74LVC3G14DCUR. By type, the board carries 46 resistors, 28 capacitors, 15 diodes, 9 ICs, 7 test points and 2 transistors.

It belongs with the sensors designs in this gallery.

From the project

ANUFS's BSPD for 2026 Formula SAE ICE Car. The goal of this project is to be AEC-Q100/Q101/Q200 compliant.

Brake System Plausibility Device — analog detection, timed qualification, latched shutdown.

This board monitors two throttle-position signals (TPS1/TPS2) and brake pressure (BPS). A persistent sensor-range fault, or sustained hard braking with throttle above 10%, removes the board's supply to the vehicle shutdown circuit.

1. Condition the inputs. TVS Diodes protect the sensor lines; pull-downs bias disconnected inputs low, as required by rules. R1/C2, R10/C3 and R15/C5 RC filter TPS1, TPS2 and BPS, respectively (5.49 kΩ / 1 µF). 2. Check two independent fault paths. U2/U4 compare each…

Main components on the ANUFS-BSPD-2026

TLV1704AIPWRSN74HC74DRLM1117MP-5.0SN74LVC2G14DBVRSN74LVC3G14DCUR

ANUFS-BSPD-2026 bill of materials (BOM)

115 components, 37 distinct parts — part numbers from the project's BOM.

QtyPartRefs
4
TLV1704AIPWR
Texas Instruments
U1, U2, U3, U4
1
SN74HC74DR
Texas Instruments
U5
1
LM1117MP-5.0
U6
1
SN74LVC2G14DBVR
Texas Instruments
U7
2
SN74LVC3G14DCUR
Texas Instruments
U8, U9
1
AO3400A
Q1
1
AO3401A
Q2
1
Conn_02x04_Counter_Clockwise
J1
5
3313J-1-203E
Bourns
RV1, RV2, RV3, RV4, RV5
2
CJS-1200TB1
Nidec Components
SW1, SW2
1
TPS1
TP1
1
TPS2
TP2
1
BPS
TP3
1
+0V45
TP4
1
+1V25
TP5
1
+2V5
TP6
1
+4V5
TP7
2
1N4148W
D1, D6
3
AQ1005-01ETG
Littelfuse
D2, D3, D4
1
SMBJ16A
Littelfuse
D5
Show 17 more
QtyPartRefs
2
S1B-13-F
Diodes Incorporated
D7, D8
7
AP2012EC
Kingbright
D9, D10, D11, D12, D13, D14, D15
3
4.7uF
C1, C19, C20
6
1uF
C2, C3, C4, C5, C6, C7
17
100nF
C8, C9, C10, C11, C12, C13, C14, C17 +9
2
10uF
C15, C16
4
5.49k
R1, R10, R15, R25
7
5.1k
R2, R4, R5, R9, R13, R17, R24
14
150k
R3, R6, R7, R8, R11, R12, R14, R16 +6
2
54.9k
R20, R30
1
21.5k
R21
1
2.61k
R23
1
7.15k
R26
2
49.9k
R28, R29
8
500
R31, R39, R40, R41, R42, R43, R44, R45
5
10M
R34, R35, R36, R37, R38
1
0
R46

ANUFS-BSPD-2026 design files

The KiCad project lives in the chithigun23/ANUFS-BSPD-2026 repository on GitHub; these links point at the commit this page was built from.

ANUFS-BSPD-2026: common questions

How big is the ANUFS-BSPD-2026 PCB?

The ANUFS-BSPD-2026 measures 75.5 × 62 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the ANUFS-BSPD-2026?

115 components, from 37 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the ANUFS-BSPD-2026 design files?

From the chithigun23/ANUFS-BSPD-2026 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the ANUFS-BSPD-2026 design in my own project?

The repository has no license, so all rights stay with chithigun23. Use it as a reference, and ask the author before reusing the design.

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