HardLabs

Brain board

Batterhead221·brain_board·ECAD/BRAIN_BOARD.kicad_pcb

Brain board layout, top view — open source board by Batterhead221

About the Brain board

Brain board is an open source PCB design by Batterhead221, published on GitHub under the MIT license. It is a 4-layer board measuring 99.5 × 92.3 mm, with 119 components from 59 distinct parts.

Other key parts include the LQFP-144, USBLC6-2SC6_(SOT-23-6), TPS62933DRLR, FM25V20A-G and W25Q128JVEIM TR. By type, the board carries 48 capacitors, 37 resistors, 12 connectors, 7 ICs, 4 diodes and 3 switches.

It belongs with the robotics & motion, power & battery and sensors designs in this gallery.

From the project

Custom STM32H753 brain board with USB-C power/input selection, 3.3V buck regulation, microSD, CAN, RS-485, FRAM, flash, debug/programming access, and expansion connectors.

Custom STM32H753 main controller board for modular motion, control, storage, communication, and daughter-board expansion.

BRAINBOARD is the clean logic/control board in a modular hardware system. It handles MCU control, communication, debugging/programming, storage, sensor inputs, and daughter-board interfaces. Noisy motor power and phase switching are kept on external boards such as DIRTYMTR_BOARD.

Brain board, from the project README
From the project README

Main components on the Brain board

LQFP-144USBLC6-2SC6_(SOT-23-6)TPS62933DRLRFM25V20A-GW25Q128JVEIM TRTJA1051T/3_(SOIC-8)THVD1450DR

Brain board bill of materials (BOM)

119 components, 59 distinct parts.

QtyPartRefs
1
LQFP-144
U1
1
USBLC6-2SC6_(SOT-23-6)
U2
1
TPS62933DRLR
U3
1
FM25V20A-G
FM25V20A-G_(SOIC-8)
U4
1
W25Q128JVEIM TR
W25Q128JVEIM_TR
U5
1
TJA1051T/3_(SOIC-8)
U6
1
THVD1450DR
Texas Instruments
U7
1
AO3407A (SOT-23-3)
Q1
1
ABM3B-8.000MHZ-B2-T
Y1
1
VH
J1
1
USB4105-GF-A (USB-C)
J2
1
ZH-3
J3
1
MTA-5
J4
1
HOME
J6
1
ZH-3
J7
1
1040310811
J8
1
ZH-5
J9
1
PH-3
J10
1
MTA-4
J11
1
JST_EH-14
J12
Show 39 more
QtyPartRefs
1
CRASH
J13
1
100nF
CBOOT1
1
33nF
C_SS1
2
1206
F1, F2
2
B3U-1100P
SW1, SW2
1
~
SW3
1
+5V_SIG
D1
1
LED_GREEN
D2
1
SM712_SOT23
D4
1
SM24CANB-02HTG (SOT-23-3)
D5
1
FERRITE_BEAD
FB1
1
4.7µH
L1
4
100nF
C1, C10, C13, C14
2
C3216X5R1V226M160AC
10µF
C2, C7
1
1µF
C3
3
C3216X5R1V226M160AC
2.2µF
C4, C6, C9
18
C3216X5R1V226M160AC
100nF
C5, C8, C18, C19, C20, C21, C22, C23 +10
2
C3216X5R1V226M160AC
22µF
C11, C12
2
CGA5L1X7R1H106K160AC
10µF
C15, C16
2
C3216X5R1V226M160AC
4.7µF
C17, C40
2
C3216X5R1V226M160AC
1µF
C29, C33
2
18pF
C31, C32
5
10nF
C35, C36, C38, C45, C47
1
C3216X5R1V226M160AC
1µF
C42
1
10µF
C43
2
100nF
C44, C46
1
1µF
C48
10
10K
R1, R5, R8, R10, R13, R14, R31, R33 +2
2
5.1K
R2, R7
2
750
R3, R6
1
5K1
R4
1
31.6K
R9
7
100
R11, R12, R15, R16, R17, R18, R37
3
470
R19, R20, R21
2
120
R22, R27
2
0
R23, R36
1
4.7K
R24
5
47K
R25, R28, R29, R30, R32
1
10K
R26

Brain board design files

The KiCad project lives in the Batterhead221/brain_board repository on GitHub; these links point at the commit this page was built from.

Brain board: common questions

How big is the Brain board?

The Brain board measures 99.5 × 92.3 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Brain board?

119 components, from 59 distinct parts. The full bill of materials is listed on this page.

Where can I download the Brain board design files?

From the Batterhead221/brain_board repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Brain board design in my own project?

Yes, under the terms of its MIT license, which Batterhead221 chose for the repository.

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