E-Ink Flashcard Device Prototype
Budget: $250 – $750 USD
I am building a pocket-sized flashcard companion that feels as distraction-free as paper yet draws its content from my iPhone. The core of the unit will be an E-ink screen—chosen for its paper-like readability and low power draw—driven by lightweight firmware. Via Bluetooth, the device must pair with an iOS app (or a simple Swift-based uploader) so I can push new term/definition sets at any time.
On the front panel I need four tactile buttons:
• Reveal term
• Next term
• Previous term
• Save term (to flag difficult cards)
A study timer should sit unobtrusively on the screen, counting down a session or tallying total focus time, whichever is easier to implement cleanly without cluttering the UI.
Deliverables I expect:
1. Schematics, PCB layout, and a parts list for the E-ink-based hardware.
2. Firmware source in C/C++ or MicroPython that handles Bluetooth syncing, local storage of card decks, button logic, and timer.
3. A minimal iOS sidecar (TestFlight-ready) that lets me add, edit, and push decks over Bluetooth.
4. One fully assembled, tested prototype with instructions for future assembly.
Acceptance criteria: the prototype must boot straight to the last active deck, reliably connect to my iPhone within ten seconds, and cycle through 500 cards on a single charge.
If you are comfortable with low-power embedded design, BLE stacks, and a sprinkle of Swift, I would love to see how you can bring this focused learning tool to life.
On the front panel I need four tactile buttons:
• Reveal term
• Next term
• Previous term
• Save term (to flag difficult cards)
A study timer should sit unobtrusively on the screen, counting down a session or tallying total focus time, whichever is easier to implement cleanly without cluttering the UI.
Deliverables I expect:
1. Schematics, PCB layout, and a parts list for the E-ink-based hardware.
2. Firmware source in C/C++ or MicroPython that handles Bluetooth syncing, local storage of card decks, button logic, and timer.
3. A minimal iOS sidecar (TestFlight-ready) that lets me add, edit, and push decks over Bluetooth.
4. One fully assembled, tested prototype with instructions for future assembly.
Acceptance criteria: the prototype must boot straight to the last active deck, reliably connect to my iPhone within ten seconds, and cycle through 500 cards on a single charge.
If you are comfortable with low-power embedded design, BLE stacks, and a sprinkle of Swift, I would love to see how you can bring this focused learning tool to life.