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Pocket 2.66 E-reader

quintenluyten2·Pocket_2.66_E-reader_PCB

Pocket 2.66 E-reader PCB layout, top view — open source ESP32 board by quintenluyten2
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About the Pocket 2.66 E-reader PCB

Pocket 2.66 E-reader is an open source ESP32 PCB design by quintenluyten2, published on GitHub. It is a 4-layer board measuring 45 × 29.2 mm, with 70 components from 32 distinct parts.

Its main chip is the ESP32-C3FH4, from the ESP32 family. Other key parts include the LCK-TF-027H30008-WLG, GX4054, GS2019-33TR5, STC3115AIQT and SRV05-4-P-T7. By type, the board carries 23 capacitors, 21 resistors, 6 ICs, 5 diodes, 4 inductors and 3 connectors.

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

From the project

PCB for 2.13" and 2.66" E-ink displays with ESP32-C3, micro-SD card, battery management, and 3 user buttons

A compact e-reader PCB built around a 2.13"/2.66" e-ink display and the ESP32-C3FH4 microcontroller.

- MCU: ESP32-C3FH4 (RISC-V, 2.4 GHz Wi-Fi + BLE, 4 MB flash) - Display: 2.13"/2.66" e-ink, connected via 24-pin FPC - Power: USB-C input, single-cell Li-Po with GX4054 charger and BQ27220 fuel gauge - Storage: micro-SD card slot - Connectivity: On-board SMD 2.4 GHz antenna (Not yet matched to 35 Ohm) - Form factor: 4-layer 1 mm PCB, min trace 0.12 mm, min via 0.3/0.4 mm (designed for JLCPCB)

Pocket 2.66 E-reader, from the project README
From the project README

Main components on the Pocket 2.66 E-reader

ESP32-C3FH4LCK-TF-027H30008-WLGGX4054GS2019-33TR5STC3115AIQTSRV05-4-P-T7

Pocket 2.66 E-reader bill of materials (BOM)

70 components, 32 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-C3FH4
ESPRESSIF
U1
1
LCK-TF-027H30008-WLG
LCKELEC
U2
1
GX4054
GUOXIN JIAPIN SEMICONDUCTOR
U3
1
GS2019-33TR5
Gainsil
U4
1
STC3115AIQT
ST Microelectronics
U5
1
SRV05-4-P-T7
ESD-USB
PROTEK
U6
1
HL2300
R+O
Q1
1
HL2305
R+O
Q2
1
XL7EL89CLI-111YLC-40M
40MHz 9pF 2016
YXC Crystal Oscillators
X1
1
USB-TYPE-C-018
DEALON
P1
1
FPC-05F-24PH20
XUNPU
P3
1
HX-1.25-2AWB
hanxia
P4
1
H2U38D1E1B0100
2.45 Ghz 1206
Unictron
ANT2
1
RL0603FR-070R025L
25mΩ
YAGEO
SH2
3
TS-24CA-S16
JXTCONN
SW1, SW2, SW3
4
1N5819WS
Schottky SOD-323
Guangdong Hottech
D1, D2, D3, D20
1
KT-0603R
RED
Hubei KENTO Elec
D4
1
BLM18PG121SN1D
BLM18PG121SN1D_C14709
muRata
FB1
1
SRTC.252010.YB220MT00
22uH 600mA
SOREDE
L1
1
LQW15AN8N2G00D
8.2nH 0402
muRata
L2
Show 12 more
QtyPartRefs
1
LQW15AN1N6C00D
1.6nH 0402
muRata
L3
4
CL05A475MP5NRNC
4.7uF 10V
Samsung Electro-Mechanics
C0, C19, C22, C24
14
CL05A105KA5NQNC
1uF
Samsung Electro-Mechanics
C1, C2, C3, C4, C5, C6, C7, C11 +6
1
CL21A475KAQNNNE
4.7uF 25V
Samsung Electro-Mechanics
C8
1
GJM1555C1HR70WB01D
0.7pF 0402
muRata
C10
2
0402CG150J500NT
15pF
FH
C16, C17
1
CL10A226MQ8NRNC
22uF
Samsung Electro-Mechanics
C21
1
0603WAF220KT5E
2.2Ω
UNI-ROYAL
R1
12
0402WGF1002TCE
10KΩ
UNI-ROYAL
R2, R5, R8, R11, R12, R13, R14, R15 +4
3
0402WGF220JTCE
22Ω
UNI-ROYAL
R6, R7, R18
2
0402WGF5101TCE
5.1KΩ
UNI-ROYAL
R9, R10
3
0402WGF2001TCE
2KΩ
UNI-ROYAL
R20, R21, R22

Pocket 2.66 E-reader design files

The KiCad project lives in the quintenluyten2/Pocket_2.66_E-reader_PCB repository on GitHub; these links point at the commit this page was built from.

Pocket 2.66 E-reader: common questions

What microcontroller does the Pocket 2.66 E-reader use?

The Pocket 2.66 E-reader is built around the ESP32-C3FH4, from the ESP32 family.

How big is the Pocket 2.66 E-reader PCB?

The Pocket 2.66 E-reader measures 45 × 29.2 mm, has 4 copper layers and is 1.0412 mm thick.

How many components are on the Pocket 2.66 E-reader?

70 components, from 32 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 Pocket 2.66 E-reader design files?

From the quintenluyten2/Pocket_2.66_E-reader_PCB 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 Pocket 2.66 E-reader design in my own project?

The repository has no license, so all rights stay with quintenluyten2. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Pocket 2.66 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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