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ESP32-li ion cell monitor

fabriziotappero·esp32-embed·kicad-boards/ESP32-li-ion-cell-monitor Ref1.3/ESP32-li-ion-cell-monitor.kicad_pcb

ESP32-li ion cell monitor PCB layout, top view — open source ESP32 board by fabriziotappero

About the ESP32-li ion cell monitor PCB

ESP32-li ion cell monitor is an open source ESP32 PCB design by fabriziotappero, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 90 × 26 mm, with 45 components from 16 distinct parts.

Its main chip is the ESP-WROOM-32, from the ESP32 family. Other key parts include the XC6220B281MR-G, INA226_SOT25-5, SI7060-00 and SI7060-01. By type, the board carries 24 resistors, 9 capacitors, 5 ICs, 4 transistors, 2 diodes and 1 connector.

From the project

a lot of embedded programming material for the Espressif ESP32

libcurl/7.58.0 OpenSSL/1.1.0g zlib/1.2.11 libidn2/2.0.4 libpsl/0.19.1 (+libidn2/2.0.4) nghttp2/1.30.0 librtmp/2.3

wxWidgets: 3.0.4 (wchar_t,wx containers,compatible with 2.8) GTK+ 2.24

Main components on the ESP32-li ion cell monitor

XC6220B281MR-GESP-WROOM-32INA226_SOT25-5SI7060-00SI7060-01

ESP32-li ion cell monitor bill of materials (BOM)

45 components, 16 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
XC6220B281MR-G
U1
1
ESP-WROOM-32
U2
1
INA226_SOT25-5
U3
1
SI7060-00
Si7060-00
U4
1
SI7060-01
Si7060-01
U5
4
Q_NMOS_GSD
Q1, Q2, Q3, Q4
1
CONN_01X05_MALE
Conn_01x05_Male
J3
1
MMSZ5V6CF
D1
1
ESDZL5-1F4
D2
1
1u
C1
2
10U
10u
C2, C5
6
100N
100n
C3, C4, C6, C7, C8, C9
3
10K
10k
R1, R10, R12
16
100R
R2, R3, R4, R6, R7, R8, R9, R11 +8
1
100MR
100mR
R5
4
100K
100k
R13, R14, R15, R16

ESP32-li ion cell monitor design files

The KiCad project lives in the fabriziotappero/esp32-embed repository on GitHub; these links point at the commit this page was built from.

ESP32-li ion cell monitor: common questions

What microcontroller does the ESP32-li ion cell monitor use?

The ESP32-li ion cell monitor is built around the ESP-WROOM-32, from the ESP32 family.

How big is the ESP32-li ion cell monitor PCB?

The ESP32-li ion cell monitor measures 90 × 26 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ESP32-li ion cell monitor?

45 components, from 16 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 ESP32-li ion cell monitor design files?

From the fabriziotappero/esp32-embed repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the ESP32-li ion cell monitor design in my own project?

Yes, under the terms of its GPL-3.0 license, which fabriziotappero chose for the repository.

Can I test firmware for the ESP32-li ion cell monitor 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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