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Wiring for UART Handshake


#1

How do you connect a Zigbee device for hardware flow control? Does the CTS of the Zigbee connect to the CTS of the Gadgeteer Device?


#2

For sender and receiver these signals need to be crossed.
But you are connecting the com hardware to the controller I would assume that it’s a 1:1 connection: CTS->CTS, …
To double check you could try to find out if it’s an iput or output on each side.
in goes to out.


#3

Maybe these links are helpful :

Connections :

RS232 sniffer (For me one of the most important things for testing !!)


#4

@ Rein, How would you know if it’s an input or output port?


#5

@ Mr. John Smith - Not sure, may be the schematics gives you a hint.
In fact its the biggest problem in serial commination ever: “to cross, or not to cross, that is the question”


#6

Ok, then how do I know if handshake is working?


#7

LED box give the answer… :smiley: