Cuifati Relay Board Adapter for , Modem FM Repeater Controller for use with Development Boards, Need Based on Cortex M3, M4, or M7

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This board needs to cooperate PI3, orange pie, a variety of school development board to use. This board has been applied in the 3688 950I 338 DR-1X, other types of repeaters and car stations need to yourself. The MMDVM is intended to be an open-source Multi-Mode Digital Voice Modem,which utilities the power of an ARM processor and a simple analogue interface board. The Multi-Mode Digital Voice Modem is a combined hardware and software development of a modem to handle all amateur digital voice modes. Initially it will support D-Star and DMR, with and P.25 coming later, as well as a built-in FM repeater The MMDVM is aimed at the Due, 3.1/3.2 and mbed platforms, the only requirement for the hardware is to be ARM Cortex-M3, M4, or M7 based, and access to interrupts and ADC and ADC ports as well as digital signalling ports.