HardLabs

Wristwearable

wlatif-cmyk·100daysofprojects·kicad/practiceschematics/wristwearablepcb/wristwearablepcb.kicad_pcb

Wristwearable PCB layout, top view — open source ESP32 board by wlatif-cmyk

About the Wristwearable PCB

Wristwearable is an open source ESP32 PCB design by wlatif-cmyk, published on GitHub. It is a 4-layer board measuring 22.4 × 32.2 mm, with 39 components from 23 distinct parts.

Its main chip is the ESP32-C3, from the ESP32 family. Other key parts include the AMS1117, LIS3DHTR_C15134, MCP73831-2ACI/MC and DRV8837DSGR. By type, the board carries 17 capacitors, 9 resistors, 5 ICs, 3 diodes and 1 battery holder.

It belongs with the sensors, robotics & motion and iot & wireless designs in this gallery.

From the project

100 days of 100 projects ;)

https://www.tiktok.com/@yappingaddiction

https://www.instagram.com/yappingaddiction/

Every day, I build something small, fun, or weird — and post it on TikTok.

This repo collects the code, notes, and mini-projects from each day.

Follow along as this slowly turns into a chaotic but glorious archive of experiments.

Day 2 — Light meter that runs off of ultrasonic sensor

Main components on the Wristwearable

AMS1117LIS3DHTR_C15134ESP32-C3MCP73831-2ACI/MCDRV8837DSGR

Wristwearable bill of materials (BOM)

39 components, 23 distinct parts.

QtyPartRefs
1
AMS1117
Advanced Monolithic Systems
U1
1
LIS3DHTR_C15134
U2
1
ESP32-C3
U3
1
MCP73831-2ACI/MC
U4
1
DRV8837DSGR
U5
1
Battery
BT1
1
LCM1027A2445F
MOT1
2
10k
R_SCL1, R_SDA1
1
TYPE-C 16PIN 2MD(073)
USB1
3
1N5819WS
Guangdong Hottech
D1, D2, D3
3
10uF
C1, C11, C12
1
22uF
C2
4
100nF
C3, C8, C9, C13
4
1uF
C4, C5, C6, C10
1
10nF
C7
2
4.7uF
C14, C15
2
0.1uF
C16, C17
2
5.1k
R1, R2
1
18kΩ
UNI-ROYAL(Uniroyal Elec)
R3
1
33kΩ
UNI-ROYAL(Uniroyal Elec)
R4
Show 3 more
QtyPartRefs
3
10k
R7, R8, R11
1
2k
R9
1
470
R10

Wristwearable design files

The KiCad project lives in the wlatif-cmyk/100daysofprojects repository on GitHub; these links point at the commit this page was built from.

Wristwearable: common questions

What microcontroller does the Wristwearable use?

The Wristwearable is built around the ESP32-C3, from the ESP32 family.

How big is the Wristwearable PCB?

The Wristwearable measures 22.4 × 32.2 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Wristwearable?

39 components, from 23 distinct parts. The full bill of materials is listed on this page.

Where can I download the Wristwearable design files?

From the wlatif-cmyk/100daysofprojects repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Wristwearable design in my own project?

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

Can I test firmware for the Wristwearable 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.

More boards in 100daysofprojects

Similar boards