2 layers40 × 20 mm
2 layers72 × 72 mm
Alarm Clock
Padimo/pomodoro_clockA distraction-free pomodoro alarm clock based on the Arduino Nano RP2040 Connect.
- Size
- 72 × 72 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 13
- Nets
- 29
- Pads
- 80
- Tracks, vias
- 222, 12
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 12 Jul 2026
- Updated
- 15 Jul 2026
Overview
Alarm Clock is an open-source printed circuit board by Padimo, from the Padimo/pomodoro_clock repository on GitHub. It is a 2-layer board of 72 × 72 mm with 13 parts on 29 nets, routed with 222 tracks and 12 vias.
Its parts include 6 ICs, 4 connectors and 2 switches. It belongs with the lEDs and displays boards and the RP2040 boards of this library.
README
readme.mdPomodoro Clock
A distraction free clock with a builtin Pomodoro timer, based on the Arduino Nano RP2040 Connect.
Compiled in the Arduino IDE using the Earle Philhower RP2040 packages.
The schematic can be found farther below. Full KiCAD files will be included at a later date.
Schematic
Parts
13| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | Conn_01x04_Male | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J3, J4 |
| 1 | Conn_01x06_Male | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J1 |
| 1 | Conn_01x07_Male | Connector_PinHeader_2.54mm:PinHeader_1x07_P2.54mm_Vertical | J2 |
| 1 | Nano_RP2040_Connect | Nano RP2040 Connect:MODULE_ABX00053 | U1 |
| 1 | SW_BOOT | Button_Switch_THT:SW_TH_Tactile_Omron_B3F-10xx | SW1 |
| 1 | SW_RST | Button_Switch_THT:SW_TH_Tactile_Omron_B3F-10xx | SW2 |
| 1 | Speaker | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | LS1 |
| 1 | TCH01 | Sensor:CapTouchBasicIO | U2 |
| 1 | TCH02 | Sensor:CapTouchBasicIO | U3 |
| 1 | TCH03 | Sensor:CapTouchBasicIO | U4 |
| 1 | TCH04 | Sensor:CapTouchBasicIO | U5 |
| 1 | TCH05 | Sensor:CapTouchBasicIO | U6 |
Questions
How big is the Alarm Clock PCB?
It measures 72 × 72 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Alarm Clock use?
13 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 Alarm Clock KiCad files?
From the Padimo/pomodoro_clock repository on GitHub, at the commit this page was made from: the board is PCB/Alarm Clock/Alarm Clock.kicad_pcb and its schematic PCB/Alarm Clock/Alarm Clock.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Alarm Clock design in my own project?
Its repository states no licence, so its author keeps all rights: ask Padimo before reusing the design.
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