2 layers44.5 × 72.7 mm
OSO SWAT C1-jig
joeycastillo/Sensor-Watch
A board replacement for the classic Casio F-91W wristwatch
28 parts2.1k
2 layers78.2 × 94 mm
Schematics
eGuardianDev/SmartClockA small "smart" alarm clock for IoT course.
- Size
- 78.2 × 94 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 45
- Pads
- 101
- Tracks, vias
- 102, 10
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 19 Mar 2025
- Updated
- 4 Dec 2025
Overview
Schematics is an open-source printed circuit board by eGuardianDev, from the eGuardianDev/SmartClock repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 78.2 × 94 mm with 28 parts on 45 nets, routed with 102 tracks and 10 vias.
Its parts include 6 connectors, 4 resistors, 3 switches, 2 capacitors and 2 diodes.
README
README.mdSmartClock
A small "smart" alarm clock for IoT course.
Idea
A small clock with alarm and basic functions. Integrationg with WiFi via ESP32 for data sharing, maybe smart home automation. Different sensors for tracking enviroment data and sleep patterns.
Restart of project
- Change from arduino ide to platformio
- Refactor RTC functions
- Refactor display functions
- Refactor pages system
- Refactor bme280 sensors
- Add sleep mode
- Fix button design
- Add lights for the display
Documentation
Tools
Parts
- Display: probably E-Ink or 7-segment.
- Sensors: Microphone for noise, temperature, humidity, light.
- Actuators control: attach lights and motor to make waking up easier.
- Main controller: ESP32
Plans and ideas
- Theoretical idea
- Finding & ordering parts
- Finding compatable parts
- Making an order
- Testing parts and finding libraries
- Display
- E-Ink no touch 89x38cm - 296x128res 2.9" inch SPI
- Sensors
Microphone Sound sensor wc- Enviroment bme280
Hand movement qtr-md-08a pir- light photoresistor
SD Card reader
-
Actuators - WiFi control
- Display
- Simple prototype
- WiFi server / API
- Sensor and calibration
-
Actuators connection
- Code
- Initialize everything
- Wifi connection
- Clock logic
- API logic
- Weather
- Time sync
- Todo?
- sleep tracking
- calendar
- Low-power/sleep mode
- Final design
- Container
- Compression of electronics
- Presentation material
- Documentation
- CAD design
- Schematics
- Software
- Presentation
- Video?
- Documentation
Current progress
- fix main page
- fix weather page
- enter sleep mode
- add alarm
- test wifi provisioner
- add time sync
- hand move test
- docs
- presentation
problems met
- bitmap size containment
- system event configuration
- hardware and electronics problem
- usb charging
- compilation time
- interupts not fixed
- maybe e-ink wasn't the best idea
Settings and ideas
- There should be different wake up patterns for the alarm. For example - ring 1 second, wait 3-5 seconds, repeat.
- Extending the suspend button away, maybe using second ESP with ESP now protocol in deep sleep or unpowered.
- sync alarm with phone
- Weather forecast
Diagram
Main body CAD design
Electronics schematics
3D PCB Design
3D render of all objects
Created for IoT Course FMI 2025.
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole | MountingHole:MountingHole_4mm | H1, H2, H3, H4 |
| 2 | Conn_01x19_Socket | Connector_PinHeader_2.54mm:PinHeader_1x19_P2.54mm_Vertical | J1, J2 |
| 2 | D | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2 |
| 2 | LOGO | Logos:negative-small-SmartAlarmClock-QR-code | G***, G*** |
| 2 | R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R4 |
| 2 | R_Photo | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | R2, R3 |
| 2 | SW_Push | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | SW1, SW2 |
| 1 | Buzzer | Buzzer_Beeper:Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | C | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C2 |
| 1 | C | Capacitor_THT:C_Radial_D5.0mm_H5.0mm_P2.00mm | C1 |
| 1 | Conn_01x04_Socket | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J3 |
| 1 | Conn_01x06_Pin | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J5 |
| 1 | Conn_01x08_Socket | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J4 |
| 1 | LOGO | Logos:Logo25mm | G*** |
| 1 | LOGO | Logos:30x30-logo | G*** |
| 1 | SW_SPST | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | SW3 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Amphenol_10103594-0001LF_Horizontal | J6 |
The 26 most common of 28 parts.
Questions
How big is the Schematics PCB?
It measures 78.2 × 94 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Schematics use?
28 parts. 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 Schematics KiCad files?
From the eGuardianDev/SmartClock repository on GitHub, at the commit this page was made from: the board is Schematics/Main/Main.kicad_pcb and its schematic Schematics/Main/Main.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Schematics design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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