HardLabs

Eink

dopmore·eink·PCB/eink.kicad_pcb

Eink PCB layout, top view — open source RP2040/RP2350 board by dopmore

About the Eink PCB

Eink is an open source RP2040/RP2350 PCB design by dopmore, published on GitHub. It is a 2-layer board measuring 44.6 × 85.1 mm, with 66 components from 27 distinct parts.

Its main chip is the MCP73831-2-OT, from the RP2040/RP2350 family. Other key parts include the MCP1700x-300xxTT, RP2040 and W25Q16JVZPIQ TR. By type, the board carries 30 capacitors, 15 resistors, 5 ICs, 5 diodes, 3 switches and 2 transistors.

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

From the project

A custom e-ink Ebook reader with SD card storage

I wanted to make this to be able to read books anywhere at any time without needing to carry around a big e-reader or get distracted by my phone :)!

The Assembly is easy as the case consists of only two parts that slide into each other and trap the PCB + Battery in between.

The PCB will be soldered using a hotplate.

Eink, from the project README
From the project README

Main components on the Eink

MCP73831-2-OTMCP1700x-300xxTTRP2040W25Q16JVZPIQ TR

Eink bill of materials (BOM)

66 components, 27 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MCP73831-2-OT
U1
1
MCP1700x-300xxTT
U2
1
RP2040
U3
1
W25Q16JVZPIQ TR
U4
1
~
U5
1
AO3401A
Q1
1
Si1308EDL
Q2
1
12 MHz
Y1
1
Battery
CN1
1
USB_C_Receptacle_USB2.0_14P
J1
1
~
SD-CARD1
3
~
SW1, SW2, SW3
1
Multi-Directional Switch
TM-2011A1
1
LED
D1
4
MBR0530
D2, D3, D4, D5
1
47uH
L1
4
4.7uF
C1, C2, C20, C21
1
10uF
C3
13
1uF
C4, C6, C7, C10, C22, C23, C24, C25 +5
10
0.1uF
C5, C8, C9, C11, C12, C15, C16, C17 +2
Show 7 more
QtyPartRefs
2
33pF
C13, C14
2
5.1K
R1, R2
6
10K
R3, R4, R5, R8, R11, R13
3
1K
R6, R12, R14
1
2k
R7
2
27
R9, R10
1
2.2
R15

Eink design files

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

Eink: common questions

What microcontroller does the Eink use?

The Eink is built around the MCP73831-2-OT, from the RP2040/RP2350 family.

How big is the Eink PCB?

The Eink measures 44.6 × 85.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Eink?

66 components, from 27 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 Eink design files?

From the dopmore/eink 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 Eink design in my own project?

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

Can I test firmware for the Eink without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

Similar boards