Hello and first of all scuse me for my bad English.I am using Cytech Comfort since about 15 years and it is connected to a Pc via serial port because on the Pc is running \"Homeseer\" software and Cytech is perfectly integrated.Now, i would like do send and receive rs232 data on \"Arduino\" board rather then \"Pc\".
I am trying but this seems a little difficult.I have mounted on the Arduino a TTL (with max232 chip) and Db9 Female plug and a \"gender changer connector\".
If i connect the cable from Cytech to \"Pc\", i can receive every data, but no data seems to be read from Arduino.Maybe somethink wrong on connection? Or maybe i need to do something i don\'t know?
Thank you very much.
Ema from Italy
Are the only pins i need to connect \"tx\" \"rx\" and \"gnd\" or maybe some other (handshake hardware)? Maybe i need to invert \"rx\" and \"tx\" pins on db9?
Yes you need to exchange tx and rx pnm the DB9 so that TX is connected to RX and vice versa
Ok, i will give a try tomorrow.Can you please give me a schematic reporting the pins on Db9 female on Ucm i need to connect and what kind of connection i need to send to thise pins (es. gnd on pin 1, rx on pin 3 etc...)?
I think for example if i open or close a window, some data will pass throught serial port even withouth any ask, is it true? So if i connect cottectly an rs232 cable, i do receive some kind of message opening and closing a window. Right?.......
[user=1]slychiu[/user] wrote: Quote:Yes you need to exchange tx and rx pnm the DB9 so that TX is connected to RX and vice versa
Pin 2 to pin 3, pin 3 to pin 2, pin 5 to pin 5 as in the picture
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[/img]
refer to the Comfort Protocol here
https://www.cytech.biz/serial_interface_protocol.html
....no success.... I think i am confused in \"front\" and \"rear\" view, male or female....
I am trying every changes, but i don\'t hear signal on my rs232 input..... i know it is my error because on Pc port everything is fine..... i will try and try again.....
\"no success.... I think i am confused in \"front\" and \"rear\" view, male or female\"
Its easy the fronts look a lot different

This may help
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No luck.... i am wronging something.
Well, i have an UCM with female Db9 connector. It goes into a Db9 male connector on my Pc and when (for example) a close a windows, some data goes from Ucm into Pc.
I have an Arduino with this female module connected to gnd, tx and rx (and obviusly to vcc in arduino). I have soldered a \"male\" Db9 to the female pins as described in the schematic but no data traffic into serial monitor.... i am becoming a little crazy because i know it is a stupid problem i can not solve.
You must set the baud rate to 9600 baud, 8 bits 1 stop bit on arduino