2 layers34.6 × 38.4 mm
4 layers22.4 × 32.2 mm
Wristwearablepcb
wlatif-cmyk/100daysofprojects8100 days of 100 projects ;)
- Size
- 22.4 × 32.2 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 40
- Nets
- 49
- Pads
- 159
- Tracks, vias
- 280, 119
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 15 Nov 2025
- Updated
- 11 Feb 2026
Overview
Wristwearablepcb is an open-source printed circuit board by wlatif-cmyk, from the wlatif-cmyk/100daysofprojects repository on GitHub. It is a 4-layer board of 22.4 × 32.2 mm with 40 parts on 49 nets, routed with 280 tracks and 119 vias.
It is built around the ESP32-C3, DRV8837DSGR-MS and AMS1117, with the MCP73831-2ACI/MC, 1N5819WS and LCM1027A2445F among its other parts. Its parts include 17 capacitors, 6 resistors, 5 ICs and 3 diodes. It belongs with the ESP32 and RISC-V boards of this library.
Main components
6
ESP32-C3
QFN-32-EP(5x5)12bit 160MHz 22 3V~3.6V Others QFN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHSEspressif SystemsMicrocontrollers (MCU/MPU/SOC)DRV8837DSGR-MS
WSON-8-EP(2x2)-40℃~+125℃ 1.5A 1.8V~7V 17nA 650mΩ Yes WSON-8-EP(2x2) Brushed DC Motor Drivers ROHSMSKSEMIBrushed DC Motor Drivers
AMS1117
1.0 A Low-Dropout Fixed RegulatorAdvanced Monolithic SystemsUncategorised
MCP73831-2ACI/MC
TDFN-8-EP(2x3)-40℃~+85℃ 1 3.75V~6V 4.2V 53uA 550mA Charging IC Lithium Battery DFN-8-EP(2x3) Battery Management ROHSMicrochip TechnologyBattery Management
1N5819WS
SOD-3231 Independent 1A 25A 40V 500uA@40V 600mV@1A SOD-323 Schottky Diodes ROHSGuangdong HottechSchottky Diodes
LCM1027A2445F
--20℃~+60℃ 10mm 13500rpm 2.7mm 3V 80mA CW、CCW Flat Vibration Motor Lead - Vibration Motors ROHSLEADERVibration Motors
README
README.md100 Days of Projects — TikTok Series
https://www.tiktok.com/@yappingaddiction
https://www.instagram.com/yappingaddiction/
Welcome to my 100-day challenge!
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.
📆 Daily Projects
Day 1 — Traffic light system
Day 2 — Light meter that runs off of ultrasonic sensor
Day 3 — Ball game with LCD Module
Day 4 — Fan Motion Detection
Day 5 — LED colour changer
Day 6 — Anti-procrastination tool
Day 7 — Anti-procrastination tool major improvements - added timer, timer reset button, and improved screen contrasting
Day 8 — LED Night light
Day 9 — Button piano
Day 10 — Improvements to LED night light - added alarm system
Day 11 — Clothing temperature/humidity sensor
Day 12 — Arduino project generator
Day 13 — Servo motor joystick control
Day 14 — Servo motor joystick control + Remote control using IR sensors
Day 15 — Budgeting dashboard site
Day 16 — Servo motor hand recognition control
Day 17 — Servo motor hand recognition control2 - same concept but motor moves when hand open/closes
Day 18 — Interview prep tool to prioritize/learn proper eye contact
Day 19 — Funny face tool using OpenCV
Day 20 — Advanced touchless volume controller
Day 21 — Motion gesture controlled brightness
Day 22 — Motion gesture cursor
Day 23 — Spotify playlist analyzer
Day 24 — Currency converter
Day 25 — Weather app
Day 26 — To do list app
Day 27 — "Panda" - designer player upon detection of panda plushie
Day 28 — Basic chatbot
Day 29 — Number guesser
Day 30 — Motion gesture controlled LED
Day 31 — RFID card reader
Day 32 — Password manager
Day 33 — Expense Tracker
Day 34 — Soldered project (no code)
Day 35 — Cheat code controlled door lock
Day 36 — Added pin unlock on phone for door lock
Day 37 — Built final prototype for door lock
Day 38 — Portable system wiring (No code)
Day 39 — Joystick controlled cursor
Day 40 — Hypnotic art drawing game on python
Day 41 — Esp32 portable communication led project
Day 42 — Mood bot
Day 43 — Mini Spotify display
Day 44 — Added buttons to Spotify display
Day 45 — Math alarm clock
Day 46 — Improved math alarm clock
Day 47 — STM32 power modes
Day 48 — Pong on joysticks
Day 49 — ESP32 WIFI network ranking
Day 50 — Balloon popper
Day 51 — Productivity measure using CV
Day 52 — ESP32 WIFI channel interference detector
Day 53 — Improved day 18 project (interview eye contact detector) to give score afterward
Parts
40| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 10k | PCM_JLCPCB:R_0603 | R_SCL1, R_SDA1, R7, R8, R11 |
| 4 | 100nF | PCM_JLCPCB:C_0603 | C3, C8, C9, C13 |
| 4 | 1uF | PCM_JLCPCB:C_0603 | C4, C5, C6, C10 |
| 3 | 10uF | PCM_JLCPCB:C_0805 | C1, C11, C12 |
| 3 | 1N5819WS | PCM_JLCPCB:D_SOD-323 | D1, D2, D3 |
| 2 | 0.1uF | PCM_JLCPCB:C_0603 | C16, C17 |
| 2 | 4.7uF | PCM_JLCPCB:C_0805 | C14, C15 |
| 2 | 5.1k | PCM_JLCPCB:R_0603 | R1, R2 |
| 1 | 10nF | PCM_JLCPCB:C_0603 | C7 |
| 1 | 18kΩ | PCM_JLCPCB:R_0603 | R3 |
| 1 | 22uF | PCM_JLCPCB:C_0805 | C2 |
| 1 | 2k | PCM_JLCPCB:R_0603 | R9 |
| 1 | 33kΩ | PCM_JLCPCB:R_0603 | R4 |
| 1 | 470 | PCM_JLCPCB:R_0603 | R10 |
| 1 | AMS1117 | PCM_JLCPCB:SOT-223-3_L6.5-W3.4-P2.30-LS7.0-BR | U1 |
| 1 | Battery | Jumper:SolderJumper-2_P1.3mm_Bridged2Bar_Pad1.0x1.5mm | BT1 |
| 1 | DRV8837DSGR | easyeda2kicad:WSON-8_L2.0-W2.0-P0.50-TL-EP | U5 |
| 1 | ESP32-C3 | easyeda2kicad:QFN-32_L5.0-W5.0-P0.50-TL-EP3.7 | U3 |
| 1 | LCM1027A2445F | easyeda2kicad:VIBRATING-MOTOR-SMD_WELDING | MOT1 |
| 1 | LIS3DHTR_C15134 | easyeda2kicad:LGA-16_L3.0-W3.0-P0.50-TL | U2 |
| 1 | LOGO | LOGO | G*** |
| 1 | MCP73831-2ACI/MC | easyeda2kicad:TDFN-8_L3.0-W2.0-P0.50-BL-EP1.6 | U4 |
| 1 | TYPE-C 16PIN 2MD(073) | easyeda2kicad:USB-C-SMD_TYPE-C-6PIN-2MD-073 | USB1 |
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Questions
How big is the Wristwearablepcb PCB?
It measures 22.4 × 32.2 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Wristwearablepcb use?
40 parts, built around the ESP32-C3, DRV8837DSGR-MS, AMS1117 and MCP73831-2ACI/MC. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Wristwearablepcb KiCad files?
From the wlatif-cmyk/100daysofprojects repository on GitHub, at the commit this page was made from: the board is kicad/practiceschematics/wristwearablepcb/wristwearablepcb.kicad_pcb and its schematic kicad/algaephotobioreactor/algae_photobioreactor/flu_excite.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Wristwearablepcb design in my own project?
Its repository states no licence, so its author keeps all rights: ask wlatif-cmyk before reusing the design.