Unusual xbee proHP issue

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hi all,

i no expert, have used xbee modules several times in past without issue... until now.

i using arduino pro mini (328 5v 16mhz) send serial commands via xbee pro900 hp, in xbee explorer, xbee relay control board. code runs fine, , if connect arduino pc via usb ftdi cable, can see correct commands coming in on serial monitor, @ correct baud rate. likewise if use serial monitor manually send commands directly xbee explorer, go through , transmitted via xbee no problems, , expected relays switch @ other end.

the problem comes sending serial commands xbee arduino. data out led blinks dimly on board, no data being transmitted. have double , triple check connections 5v gnd tx , rx connections between two. have tried 3 different arduino pro minis, same result.

i hoping of clever folk on forum may have ideas?

cheers,

chris

isnt xbee 3.3v ?


Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > Unusual xbee proHP issue


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