4 layers140 × 54 mm
Picoclock
locked/picoclock
This repo is an attempt at building a Pico based alarm clock. It was created for my kids and features:
146 parts
2 layers175.8 × 64 mm
Frontpanel
locked/picoclockThis repo is an attempt at building a Pico based alarm clock. It was created for my kids and features:
- Size
- 175.8 × 64 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 39
- Pads
- 68
- Tracks, vias
- 87, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 9 Jun 2024
- Updated
- 15 Aug 2026
Overview
Frontpanel is an open-source printed circuit board by locked, from the locked/picoclock repository on GitHub. It is a 2-layer board of 175.8 × 64 mm with 20 parts on 39 nets, routed with 87 tracks and 0 vias.
Its parts include 8 diodes, 6 resistors, 4 connectors and 1 IC.
README
README.mdRP2040 based Alarm Clock
Presentation
This repo is an attempt at building a Pico based alarm clock. It was created for my kids and features:
- date/time (obviously)
- alarm (plays wav file on sdcard)
- weather (current and forecast)
- epaper screen
- 3d printable case
The configuration is done remotely, and the clock synchronize from time to time (it can be forced too). The time is also fetched from a remote server.
Repository Architecture
- 3d: contains printable models for the case, buttons
- fw: the firmware, based on a lightweight "rtos"
- pcb: the PCBs:
- the main PCB receiving the RP2040 board
- the front PCB with the backlight leds
- api: remote api basic php script
Pictures
Build
mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Debug ..
makeParts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | LED | LED_SMD:LED_0805_2012Metric | D1, D2, D3, D4, D5, D6, D7, D8 |
| 4 | 68 | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4 |
| 4 | xx | Connector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_Vertical_SMD_Pin1Left | J1, J2, J3, J4 |
| 1 | 10K | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 220 | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | LOGO | capybara:capybara | G*** |
| 1 | MCP9808_MSOP | Package_SO:MSOP-8_3x3mm_P0.65mm | U2 |
Questions
How big is the Frontpanel PCB?
It measures 175.8 × 64 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Frontpanel use?
20 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 Frontpanel KiCad files?
From the locked/picoclock repository on GitHub, at the commit this page was made from: the board is pcb/frontpanel/frontpanel.kicad_pcb and its schematic pcb-mini/CYW43439/4L/CYW43439.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Frontpanel design in my own project?
Its repository states no licence, so its author keeps all rights: ask locked before reusing the design.
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