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Goofy ahh epaper watch

haohaohaoyan·goofy-ahh-epaper-watch·PCB/watch.kicad_pcb

Goofy ahh epaper watch PCB layout, top view — open source ESP32 board by haohaohaoyan
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About the Goofy ahh epaper watch PCB

Goofy ahh epaper watch is an open source ESP32 PCB design by haohaohaoyan, published on GitHub. It is a 2-layer board measuring 66 × 36 mm, with 50 components from 24 distinct parts.

Its main chip is the ESP32-S3-MINI-1, from the ESP32 family. Other key parts include the MCP73831-2-OT, RT9080-33GJ5, RV-3028-C7 and USBLC6-2SC6. By type, the board carries 19 capacitors, 13 resistors, 7 diodes, 4 ICs, 2 connectors and 2 switches.

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

From the project

i really want a watch so i'll try designing one with an esp32 for wireless time sync or something

A developer/tech nerd friendly wristwatch powered by an ESP32 S3 MINI 1, uses an e-paper display for power efficiency, and a 2000mAh battery for all-day use. It's supposed to provide both the features that a regular watch is supposed to have, while also having smartwatch functions and IO pins to leverage the power of the ESP32 microcontroller. I really wanted to make myself a wristwatch that I could use and carry around in everyday life. I was initially inspired by that really expensive and prebuilt CircuitMess watch, but it lacked the DIY process and developer tools that I wanted (so no…

Goofy ahh epaper watch, from the project README
From the project README

Main components on the Goofy ahh epaper watch

MCP73831-2-OTRT9080-33GJ5RV-3028-C7USBLC6-2SC6

Goofy ahh epaper watch bill of materials (BOM)

50 components, 24 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MCP73831-2-OT
U2
1
RT9080-33GJ5
U3
1
RV-3028-C7
U4
1
USBLC6-2SC6
U5
1
Si1308EDL
Q1
1
Battery Connector
J3
1
E-Paper ribbon cable
J5
1
ESP32-S3-MINI-1
ESP32-S3-MINI-1
1
BUTTON A
SW3
1
BUTTON B
SW4
5
MBR0530T3G
D1, D3, D4, D5, D6
1
LED
D2
1
GG0603052R542P
D7
1
10uH 1A
L1
4
4.7uF
C1, C2, C11, C12
11
1uf
C3, C4, C5, C6, C7, C8, C9, C10 +3
3
0.1uF
C16, C18, C19
1
22uF
C17
2
4.7k
R1, R2
1
2k?
R3
Show 4 more
QtyPartRefs
1
500
R4
6
10k
R5, R9, R10, R11, R12, R13
1
3R
R6
2
5.1k
R7, R8

Goofy ahh epaper watch design files

The KiCad project lives in the haohaohaoyan/goofy-ahh-epaper-watch repository on GitHub; these links point at the commit this page was built from.

Goofy ahh epaper watch: common questions

What microcontroller does the Goofy ahh epaper watch use?

The Goofy ahh epaper watch is built around the ESP32-S3-MINI-1, from the ESP32 family.

How big is the Goofy ahh epaper watch PCB?

The Goofy ahh epaper watch measures 66 × 36 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Goofy ahh epaper watch?

50 components, from 24 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 Goofy ahh epaper watch design files?

From the haohaohaoyan/goofy-ahh-epaper-watch 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 Goofy ahh epaper watch design in my own project?

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

Can I test firmware for the Goofy ahh epaper watch 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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