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ESP32 E-Reader

IS7V4N·ESP32_E-Reader·Hardware/PCB/ESP32_C3_EReader.kicad_pcb

ESP32 E-Reader PCB layout, top view — open source ESP32 board by IS7V4N
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About the ESP32 E-Reader PCB

ESP32 E-Reader is an open source ESP32 PCB design by IS7V4N, published on GitHub. It is a 4-layer board measuring 62.5 × 96.2 mm, with 85 components from 47 distinct parts.

Its main chip is the ESP32-C3-WROOM-02, from the ESP32 family. Other key parts include the MCP73831-2-OT, USBLC6-2SC6, DW01A, ME6211C33M5 and TPS61169DCKR. By type, the board carries 32 capacitors, 27 resistors, 6 ICs, 6 switches, 5 diodes and 4 connectors.

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

From the project

ESP32 based E-Ink reader

A custom-built e-ink reading device based on the ESP32-C3, designed for everyday use. Built around a 4.2" e-ink display with a frontlight for reading in the dark environment, running a modified version of the Crosspoint open-source firmware adapted for custom hardware. The goal was to build a capable, low-cost alternative to commercial e-readers with full control over both hardware and software.

ESP32 E-Reader, from the project README
From the project README

Main components on the ESP32 E-Reader

MCP73831-2-OTUSBLC6-2SC6DW01AESP32-C3-WROOM-02ME6211C33M5TPS61169DCKR

ESP32 E-Reader bill of materials (BOM)

85 components, 47 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MCP73831-2-OT
U1
1
USBLC6-2SC6
U2
1
DW01A
U3
1
ESP32-C3-WROOM-02
U4
1
ME6211C33M5
U5
1
TPS61169DCKR
U6
1
FS8205A_DUAL_MOSFET
Q1
1
SI1308EDL
Si1308EDL
Q2
1
USB
J1
1
E-INK_DISPLAY_CONNECTOR_01X24_SOCKET
E-Ink_Display_connector_01x24_Socket
J2
1
EINK_FRONT_LIGHT_CONN_01X06_SOCKET
EInk_Front_Light_Conn_01x06_Socket
J3
1
Micro_SD_Card
J4
1
Batt
BT1
1
EN_Push
S1
1
Power
S2
1
Back
SW2
1
Confirm
SW3
1
Left
SW4
1
Right
SW6
1
CHRG_STAT
D1
Show 27 more
QtyPartRefs
3
MBR0530
D2, D3, D4
1
NSR0240
D5
1
47UH
47uH
L1
1
10UH
10uH
L2
3
1UF
1uF
C1, C11, C13
6
100NF
100nF
C2, C4, C8, C9, C12, C30
10
4.7UF
4.7uF
C3, C15, C16, C17, C18, C22, C23, C26 +2
5
10UF
10uF
C5, C7, C10, C14, C24
1
10UF
10uF
C6
1
10UF
10uF
C19
1
100NF
100nF
C20
3
1UF
1uF
C21, C25, C27
2
100NF
100nF
C31, C32
1
12K
12k
R1
1
5.6K
5.6k
R3
8
10K
10k
R4, R10, R11, R18, R19, R20, R21, R23
2
470R
R5, R14
1
2.2K
2.2k
R6
2
5.1K
5.1k
R7, R8
1
2.5K
2.5k
R9
4
100K
100k
R12, R13, R24, R25
1
2.7K
2.7k
R15
1
1M
R16
1
2.2R
R17
1
10R
R22
1
330R
R26
2
20R
R27, R28

ESP32 E-Reader design files

The KiCad project lives in the IS7V4N/ESP32_E-Reader repository on GitHub; these links point at the commit this page was built from.

ESP32 E-Reader: common questions

What microcontroller does the ESP32 E-Reader use?

The ESP32 E-Reader is built around the ESP32-C3-WROOM-02, from the ESP32 family.

How big is the ESP32 E-Reader PCB?

The ESP32 E-Reader measures 62.5 × 96.2 mm, has 4 copper layers and is 1.6062 mm thick.

How many components are on the ESP32 E-Reader?

85 components, from 47 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 E-Reader design files?

From the IS7V4N/ESP32_E-Reader 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 ESP32 E-Reader design in my own project?

The repository has no license, so all rights stay with IS7V4N. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the ESP32 E-Reader 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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