Pomodoro Timer Solder Kit
Unlock your productivity while mastering soldering skills with our Pomodoro Timer Solder Kit. Transform the work-rest productivity technique into a desk accessory you built yourself. Some of the popular Pomodoro intervals are 25-minute work with 5-minute rest, or 45-minute work with 15-minute rest. This Level 2 solder kit challenges intermediate makers to assemble a fully programmable timer featuring a four digit 7-segment display, RGB LED, and customizable buzzer alerts. Whether you're a student studying in sessions, a professional managing work blocks, or a maker wanting to enhance your workspace, this kit combines practical productivity tools with hands-on electronics education.
Built around the RP2040 microcontroller and programmed in beginner-friendly MicroPython, this timer offers complete customization of work and rest periods in 5-minute increments. The WS2812B RGB LED provides instant visual feedback - red for work time, green for rest periods, and yellow warning when transitions approach. Four buttons control select/pause, reset, and time adjustment functions, different melodies you can select via jumpers ensure you'll never miss a session change. The compact 7x7cm PCB design sits perfectly on any desk, requiring only USB-C power to transform your productivity workflow.
This kit perfectly balances practical utility with advanced learning, teaching professionals soldering techniques while creating a useful productivity tool. Complete open-source design includes schematics, code. KiCad files, and 3D-printable enclosure files, enabling unlimited customization and learning opportunities. Easily re-program this kit in MicroPython yourself! The comprehensive documentation guides you through each assembly step while explaining the electronics principles behind this timer system.
- RP2040 Processor: Dual-core ARM Cortex-M0+ at 133MHz with 264KB SRAM fully re-programmable via USB-C.
- A detailed step-by-step guide with assembly instructions is available
- MicroPython Programmable: Easily customize code and re-program using MicroPython.
- 4-Digit 7-Segment Display: Provides clear, bright time visualization for easy readability.
- Classic Pomodoro Cycle: 25-minute work cycle and 5 minute rest by default
- Intuitive Button Controls: Simple start, pause, reset, and time adjustment functions with tactile switches.
- RGB Status LED: WS2812B LED offers instant visual feedback on timer status (work, rest, config or incoming state change).
- Selectable Audio Alerts: Onboard buzzer with 4 jumper-selectable melodies to signal session changes.
- Write and add your own buzzer melodies in MicroPython!
- USB-C Connectivity: Modern and convenient power and prog<ramming connection via a single USB-C cable.
- Intermediate Soldering Kit: A Level 2 kit that challenges makers with through-hole components for skill advancement.
- Fully Open Source: All design files, including schematics, KiCad layouts, and 3D-printable case models, are available for modification.
- Compact Desk Footprint: The 7x7cm PCB is designed to fit perfectly on any desk or workspace.
- Customizable Enclosure: Includes 3D-printable enclosure files for creating a personalized and protective case.
Soldering iron, solder wire and side cutters (not included in the kit).
Solder each component in order — the guide shows exactly where everything goes.
Insert the battery or connect power and watch your kit come to life.