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Battery

86kkd·millionBoard·pcb/battery/battery.kicad_pcb

Battery PCB layout, top view — open source ESP32 board by 86kkd

About the Battery PCB

Battery is an open source ESP32 PCB design by 86kkd, published on GitHub. It is a 6-layer board measuring 56.6 × 33.7 mm, with 139 components from 79 distinct parts.

Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the HX711, SIT1042AQT/3, LMR16030SDDAR and INA240A2PW. By type, the board carries 50 capacitors, 48 resistors, 14 diodes, 10 ICs, 9 inductors and 5 transistors.

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

From the project

Amazing 500million sensor enetric skateboard use body center of gravity to control !!!

Main components on the Battery

HX711SIT1042AQT/3ESP32-S3-WROOM-1LMR16030SDDARINA240A2PW

Battery bill of materials (BOM)

139 components, 79 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
HX711
SH3676010B
U1
1
SIT1042AQT/3
ETA3000_DFN2x2
U2
1
ESP32-S3-WROOM-1
ETA3000_DFN2x2
U3
3
LMR16030SDDAR
ETA3000_DFN2x2
U4, U5, U6
3
INA240A2PW
ETA3000_DFN2x2
U7, U8, U10
1
HX711
ETA3000_DFN2x2
U9
1
AO3401A
MMBT5401
Q1
2
BSC030N08NS5
Q2, Q3
2
BTN8982TA
BSC030N08NS5
Q4, Q5
1
RC555
Conn_01x11_Pin
J1
1
USB_C_RECEPTACLE_USB2.0_16P
UART XH2.54
J4
1
PH_2.0
Conn_01x06_Pin
J10
1
ESD9B5.0ST5G
SMBJ64A
D1
1
ESD9B5.0ST5G
BAV21W
D2
1
ESD9B5.0ST5G
BAV21
D3
3
B560C
LED
D4, D11, D12
1
B560C
RS3M
D5
6
LED
D6, D7, D9, D10, D13, D14
1
SMAJ13CA
LED
D8
1
47UH
2.2uH
L1
Show 59 more
QtyPartRefs
2
22UH
2.2uH
L2, L3
6
2.2uH
L4, L5, L6, L7, L8, L9
2
10UF
100nf
C1, C4
1
100NF
1nf
C2
6
100NF
100nf
C3, C5, C6, C8, C12, C13
1
10UF/50V
100nf
C7
1
47NF
100nf
C9
1
10UF/50V
1uf/25v
C10
1
68NF
1000pf/25v
C11
1
10UF/16V
1uf/25v
C14
1
10UF/16V
100nF
C15
1
10UF/35V
100nf
C16
1
10UF/35V
1000pf/25v
C17
1
47NF
100nF/100V
C18
1
100NF
1uF/100V
C19
1
4.7UF/50V
1000pf/25v
C20
1
100NF
1000pf/25v
C21
1
10UF/10V
1uF/25V
C22
1
10UF/10V
1uF/100V
C23
9
100NF
10nF
C24, C27, C28, C30, C33, C39, C40, C46 +1
1
100NF/50V
10nF
C25
3
1NF
100nF/50v
C26, C32, C44
2
100nF/50v
C29, C47
3
20PF
10nF
C31, C34, C37
3
100NF
100nF/50v
C35, C38, C41
1
1NF
10nF
C36
3
1UF
10nF
C42, C43, C45
1
220UF
10nF
C48
1
20PF
100nF/50v
C50
2
100
1k
R1, R47
1
100
510/0805
R2
1
120
1k
R3
2
5K1
1k
R4, R5
10
10K
1k
R6, R7, R8, R9, R17, R20, R23, R31 +2
1
1.3K
10
R10
1
62K
0.005
R11
1
100K
0.005
R12
1
56K
0.005
R13
1
680
0.005
R14
1
10K
10
R15
1
300K
1k
R16
2
10K
3M
R18, R26
1
10K
1M
R19
1
1.3K
1K
R21
1
62K
1K
R22
1
33K
1M
R24
1
100R/0805
R25
1
10K
R27
1
1k/0805
R28
1
10K
10M
R29
1
0.51K
10M
R30
2
20k
R32, R40
4
3.3K
1k
R33, R35, R37, R43
2
10K
20k
R34, R48
2
0.51K
20k
R36, R42
1
3.3K
20k
R38
1
0.001
20k
R44
1
0.001
1k
R45
1
100
20k
R46

Battery design files

The KiCad project lives in the 86kkd/millionBoard repository on GitHub; these links point at the commit this page was built from.

Battery: common questions

What microcontroller does the Battery use?

The Battery is built around the ESP32-S3-WROOM-1, from the ESP32 family.

How big is the Battery PCB?

The Battery measures 56.6 × 33.7 mm, has 6 copper layers and is 1.6 mm thick.

How many components are on the Battery?

139 components, from 79 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 Battery design files?

From the 86kkd/millionBoard 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 Battery design in my own project?

The repository has no license, so all rights stay with 86kkd. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Battery without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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