HardLabs

CellGradingTool

jobitjoseph·CellGradingTool·Hardware/Cellgrading.kicad_pcb

CellGradingTool PCB layout, top view — open source STM32 board by jobitjoseph

About the CellGradingTool PCB

CellGradingTool is an open source STM32 PCB design by jobitjoseph, published on GitHub. It is a 2-layer board measuring 52 × 100 mm, with 75 components from 39 distinct parts.

Its main chip is the STM32G071KBUX, from the STM32 family. Other key parts include the TP4056-42-ESOP8, ADP7118AUJZ-3.3-R7, INA236BIDDFR, MCP6486T-E/OT and SP485REN-L/TR. By type, the board carries 41 resistors, 9 capacitors, 8 ICs, 5 connectors, 4 transistors and 2 LEDs.

CellGradingTool, from the project README
From the project README

Main components on the CellGradingTool

TP4056-42-ESOP8ADP7118AUJZ-3.3-R7INA236BIDDFRMCP6486T-E/OTSP485REN-L/TRSTM32G071KBUXLTD-2601G24CS32

CellGradingTool bill of materials (BOM)

75 components, 39 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TP4056-42-ESOP8
TP4056
IC1
1
ADP7118AUJZ-3.3-R7
IC2
1
INA236BIDDFR
IC3
1
MCP6486T-E/OT
MCP6486T-E_OT
IC4
1
SP485REN-L/TR
SP485REN-L_TR
IC5
1
STM32G071KBUX
STM32G071KBUx
U1
1
LTD-2601G
U2
1
24CS32
U3
2
S8050
Q1, Q3
2
IRF540N
Q2, Q4
1
ECS-.327-7-34B-C-TR
32.768KHz
Y1
1
Barrel_Jack_Switch
J1
2
CONN_01X02
Conn_01x02
J2, J3
2
CONN_01X04
Conn_01x04
J4, J5
1
Battery_Cell
BT1
1
200R
RV1
1
1.2K
Rprog1
1
RST
SW1
2
CHG
LED1, LED2
1
SDT30B100D1-13
D1
Show 19 more
QtyPartRefs
1
10UF
10uF
C1
1
2.2UF
2.2uF
C2
1
NC
C3
2
12.5PF
12.5pf
C4, C5
1
0.1UF
0.1uF
C6
3
100N
100n
C7, C8, C9
2
1.3K
R1, R2
1
0
R3
3
.01 5W
R4, R28, R41
1
0.01R
R5
8
10K
R6, R7, R10, R11, R26, R33, R34, R35
16
1K
R8, R9, R13, R14, R15, R16, R17, R18 +8
1
NTC
R12
1
909
R22
2
270K
R24, R40
1
100
R25
2
2.2K
R27, R29
2
20K
R36, R37
1
120R
R38

CellGradingTool design files

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

CellGradingTool: common questions

What microcontroller does the CellGradingTool use?

The CellGradingTool is built around the STM32G071KBUX, from the STM32 family.

How big is the CellGradingTool PCB?

The CellGradingTool measures 52 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the CellGradingTool?

75 components, from 39 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 CellGradingTool design files?

From the jobitjoseph/CellGradingTool 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 CellGradingTool design in my own project?

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

Can I test firmware for the CellGradingTool without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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