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What pin required to config 9xtend oem module using TTL?
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What pin required to config 9xtend oem module using TTL?
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I am not sure if this is the right place for my question,
I have OEM RF MODULE 9xTend 900 Mhz,
I want to connect it to XCTU Software for configuration,
I connect Vcc ,GND ,DI, DO,
What are other pins need to be connected?
Regards,
9xtend
asked
Feb 23, 2016
in
XTend
by
jone
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1 Answer
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You need to connect the Shut down pin as well. But you need to connect all of these via a level shiftier in order to connect them to a PC.
answered
Feb 23, 2016
by
mvut
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thanks for replay ,
sorry but what you mean by "a level shiftier" ?
A level shifter is a circuit that shifts the one voltage to another. In this case a 5V TTL to an RS232 level.
If you are not sure what one is, I would strongly urge you to purchase an XTIB-R interface board to mount the radio on and connect to your PC or other RS232 or 485 devices.
I connect the TTL VCC to the pin 2 VCC and to pin 7 shut down ,
Dose that fine ? Or it need specific voltage?
How I know that the module is ON ?
coz when I connect to XCTU It couldn't find the module and I get the Action required dialog ,
That is not sufficient in order to connect the Xtend OEM module to the PC. YOU MUST connect it to a board such as the XTIB interface board that provides the proper voltages, currents and level shifters to keep from Damaging the 5V TTL level module.
Mvut ,
I know it is not sufficient way ,
but now I don't have that board , and I couldn't get it easily,
my friends do it without that board ,
Dose the laptop TTL output voltage good ?
what about if I use regulator 5 v ?
Laptops don't output TTL levels. They output RS232 levels on the RS232 port. Now if you get a USB to TTL level cable, then you might be able to get something working.
thanks MVUT , It works for me using usb -to - TTL cable , I am able now to configure it ..
thanks again .
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