
Wallet-sized computer with E Ink display pushes ultra-portable computing
The Muxcard is a 1mm-thick, credit-card-sized computer that houses an ESP32-C3 microcontroller, a 1.54-inch flexible E Ink display, NFC, Wi‑Fi, Bluetooth, an IMU, and a tiny Li‑Po battery. Its bend-tolerant design and on-card integration push the boundaries of ultra-portable computing while highlighting durability and power challenges in flexible electronics.





