E-Ink Flashcard Device Prototype

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... (Budget: $250 - $750 USD, Jobs: Bluetooth, Bluetooth Low Energy (BLE), Electronics, Embedded Systems, Firmware, iOS Development, iPhone, Mobile App Development)