"A developer wants to hit the sweet spot in the middle, having developed a mini PC the size of a credit card. Developed by GitHub user krauseler, the fully working computer dubbed Muxcard. Unlike other single-board computers, this one factors in the thickness as well, being just 1mm thick at any point on the whole make. For the chassis of this amazingly tiny CPU, the maker uses an old plastic NFC card."
"At the time of making, the credit card-sized computer packs a RISC-V CPU architecture, and a Wi-Fi-capable microcontroller with 320KB of usable SRAM and 384KB ROM. The next version of the mini PC could feature the ESP32‑S3 or nRF52/53, which are more powerful than the currently installed ESP32‑C3 CPU. The display on this thing is a 1.54-inch 200×200-pixel flex ePaper screen that consumes minimal power, which is vital."
"There's an LIS2DW12 accelerometer for motion-sensing applications. The thing is powered by a 1mm thick 30mAh rechargeable LiPo battery, but krauseler plans to swap this one with an even slimmer battery cell in the future. In the plans is the scope for touch button control configuration, a USB Type-C, and a microSD card slot. Since everything is so exposed right now, it'll take quite an effort to reinforce Muxcard's design to make it more practical."
Muxcard is a credit-card-sized computer prototype built to balance compact size and capability. The design is fully functional and maintains a uniform 1mm thickness using an old plastic NFC card as the chassis. It uses a RISC-V CPU architecture and a Wi-Fi-capable microcontroller with 320KB usable SRAM and 384KB ROM. A 1.54-inch 200×200 flex ePaper display provides low power consumption, supported by an LIS2DW12 accelerometer for motion sensing. Power comes from a 1mm thick 30mAh rechargeable LiPo battery, with plans to use an even slimmer cell. Future plans include touch button configuration, USB Type-C, and a microSD card slot, along with reinforcement for durability and practicality.
Read at Yanko Design - Modern Industrial Design News
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