FONA808 USB interface

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Jesus Echavarria published a new build:

For several months I’m working with FONA808 modules from Adafruit to make a portable, web-based locating system. This modules are based on the SIM808 module from SIMCOM manufacturer, and integrates both GSM and GPS transceivers in one 24x24mm package.  The Adafruit board includes this module and also some electronics for choosing voltage levels, battery connection and charger. Because I need to test and programming some of this modules, I decide to make an specific PCB for it, allowing the programming and debugging via PC, wich is more comfortable that use a microcontroller for all these tasks.  I use the MCP2221 USB-Serial bridge and add some electronics to give the board more functionality.

Project info at Jesus Echavarria’s blog.

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