Hardware ******** Specifications ============== +---------------------------------------------------------+ | Specification | +==============+==========================================+ | Display | 160x128 color TFT | +--------------+------------------------------------------+ | Input | 7 buttons | +--------------+------------------------------------------+ | Sound | 7mm buzzer | +--------------+------------------------------------------+ | Interface | Micro USB | +--------------+------------------------------------------+ | Controller | SAMD51 ARM Cortex M4 | +--------------+------------------------------------------+ | Battery | 2xAAA 1.5V (not included, optional) | +--------------+------------------------------------------+ Open Development ================ This hardware is developed in the open, and all the designs and related materials are publicly available under a permissive license. You are free to inspect how it is build, build your own, improve and extend the design, and even sell your own versions. The designs are available in the `project's repository `_.