Connecting the Cellular Radio Module to the Fez Cobra III

NETMF & Gadgeteer
1

Hi - apologies for the newb question - but I’ve bought a cellular radio module to connect to a FC III - and have realized I don’t know how to hook it up. I have a GXP Gadgeteer Bridge - that’s allowed me to connect a RS21 Wifi board - and that works well - but the radio modem looks like it requires a K Socket. Where do I come by a K socket - or do I need to break out a soldering iron?

Thanks,

2

COM2 on the FCIII are the equivalent pins for a K socket.

3

@ peterss - The U socket on the GXP Gadgeteer Bridge is COM4. As @ munderhill said, COM2 is the only port with handshaking on the G120, so you will need to wire it up yourself. https://www.ghielectronics.com/downloads/schematic/FEZ_Cobra_III_SCH.pdf shows you where all the pins are.

4

Thanks John, Munderhill, appreciated.