Seeed Studio has design a modular and open source phone it calls RePhone Kit Create. The kit allows you, or/and your kid(s), to assemble their own phone based on building blocks including a 2G or 3G core module, a touchscreen display module, an audio module, and pre-cut, seawable, washable, and easily drawable Kraft paper to make the case. The kit can also be used for IoT applications using cellular and Bluetooth connectivity, and extra Xadow modules GPS, NFC, motion sensors, camera and more..
Two cellular “core” module can be used:
- RePhone GSM + BLE module with the “world’s smallest System-on-Chip (SOC) for Wearables and Internet Of Things”, GSM, GPRS and Bluetooth 2.1 and 4.0 support.
- RePhone Core Module 3G with a “powerful microcontroller”,a standard Xadow interface (USB, GPIO, I2C, SPI, UART, EINT), support for speaker, two microphones and a headset, a Nano SIM, and support for HSPA/WCDMA:850/1900 and GPRS/EDGE:850/1900. Voltage: 3.3 to 4.2V. Please note that the 3G module does not support Bluetooth.
The company has not released the full specs and documentation yet for the modules, but this should be done by October.
Up to eight modules are included with the rewards: Xadow 1.54″ Touchscreen and Xadow Audio included in RePhone Kit Create, as well as Xadow Basic Sensors, Xadow GPS v2 , Xadow NFC v2, Xadow LED 5×7, Xadow Duino, and/or Xadow GSM Breakout in other rewards. A 520 mAh battery, and relevant FPC cables are also included.