2 layers92.4 × 70 mm
LucaudioESP32 V2 1
lucococo/LucaudioESP32
ESP32 based board running SqueezeliteESP32 for audio streaming
104 parts
4 layers35.2 × 29.7 mm
Smartwatch
Westsi/ESP-Smartwatch1- Size
- 35.2 × 29.7 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 34
- Nets
- 52
- Pads
- 167
- Tracks, vias
- 305, 43
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 29 Mar 2024
- Updated
- 10 Oct 2026
Overview
Smartwatch is an open-source printed circuit board by Westsi, from the Westsi/ESP-Smartwatch repository on GitHub, published under the GPL-2.0 licence. It is a 4-layer board of 35.2 × 29.7 mm with 34 parts on 52 nets, routed with 305 tracks and 43 vias.
It is built around the ESP32-WROVER-E(4MB), MPU-6050 and TLV1117-33DCY. Its parts include 13 capacitors, 9 resistors, 4 ICs, 3 connectors and 1 switch. It belongs with the wearables boards and the ESP32 boards of this library.
Main components
3
ESP32-WROVER-E(4MB)
SMD,18x31.4mmSMD,18x31.4mm WiFi Modules ROHSEspressif SystemsWiFi Modules
MPU-6050
QFN-24-EP(4x4)-40℃~+85℃ 16bit 1KB 2.375V~3.46V 5uA Accelerometer Gyroscope I2C X,Y,Z X,Y,Z ±16g ±2000dps QFN-24-EP(4x4) Accelerometers ROHSTDK InvenSenseAccelerometersTLV1117-33DCY
UncategorisedTexas Instruments
README
README.mdESP32 Based Smartwatch
A smartwatch with modern features such as notifications and Spotify sync, watch faces that can be customised, a 240x240 round LCD screen, and a companion app connected with a custom BLE profile.
Features
- Custom BLE Profile allowing for
- Notification Sync
- Time Sync
- Spotify Sync
- Exercise Sync
- Auto Sleep Timeout to save battery
- Adjustable Brightness
- Semi-customizeable Watch Faces
- Rudimentary Exercise Tracker
- Code for wireless (OTA) updates (most code from fbiego/ESP32_BLE_OTA_Arduino)
Prototype 1
TODO
- Fix OTA updates over BLE
- Make weather sync as well
- Put it all together
- Calibrate battery level code
- Make Exercise Tracker work properly with accelerometer
- Saveable Preferences
Parts
34| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 10KΩ | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4, R5, R6, R7, R8, R9 |
| 4 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C3, C9, C10 |
| 4 | 10nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C4, C8, C13 |
| 2 | 0.1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C7 |
| 2 | 470Ω | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R3 |
| 2 | Polarized_10uF | Capacitor_Tantalum_SMD:CP_EIA-2012-12_Kemet-R_Pad1.30x1.05mm_HandSolder | C11, C12 |
| 1 | 2.2KΩ | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | 2.2nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C6 |
| 1 | BAT_CON/DC_CON | Connector_JST:JST_GH_SM04B-GHS-TB_1x04-1MP_P1.25mm_Horizontal | J5 |
| 1 | BOOT/FLASH | Button_Switch_SMD:SW_SPST_Omron_B3FS-100xP | BOOT/FLASH1 |
| 1 | CHARGED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | GREEN1 |
| 1 | CHARGING | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | RED1 |
| 1 | ESP32-WROVER-E | Espressif:ESP32-WROVER-E | U1 |
| 1 | MCP73831-5-OT | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | MPU-6050 | Sensor_Motion:InvenSense_QFN-24_4x4mm_P0.5mm | U3 |
| 1 | PROG_INT | Connector_JST:JST_GH_SM02B-GHS-TB_1x02-1MP_P1.25mm_Horizontal | J6 |
| 1 | RST | Button_Switch_SMD:SW_SPST_Omron_B3FS-100xP | RST1 |
| 1 | SM13B-GHS-TB | SM13B-GHS-TB:JST_SM13B-GHS-TB | J4 |
| 1 | SW_Push | Side_Button:Wurth_Elektronik_436331045822 | SW1 |
| 1 | TLV1117-33 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U4 |
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Questions
How big is the Smartwatch PCB?
It measures 35.2 × 29.7 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Smartwatch use?
34 parts, built around the ESP32-WROVER-E(4MB), MPU-6050 and TLV1117-33DCY. 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 Smartwatch KiCad files?
From the Westsi/ESP-Smartwatch repository on GitHub, at the commit this page was made from: the board is smartwatch/smartwatch.kicad_pcb and its schematic smartwatch/smartwatch.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Smartwatch design in my own project?
Its repository publishes it under the GPL-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).