Friday 26 August 2011

CP2102 USB to TTL bridge with Ubuntu 8.10

Well I got the SMS working from a simple script, so it's onto working on the input and output board, I've ruled out my other option as
I dont have a serial port anymore on the HP microserver, so I thought I'd look at interfacing with the Mega32 using USB.. every option was getting
over complicated and then I stumbled across the CP2102 chip on sparkfun. I was going to order one when I noticed that they were out of stock
quick search on google shopping showed play selling some for £4.18 or so including free delivery! - So I ordered two and they arrived the next day.

Seems to good to be true, anyway I Inserted the USB to TTL convertor and typed dmesg to look at the kernel messages and was presented with:

[6390234.520185] usb 4-3: new full speed USB device using ohci_hcd and address 3
[6390234.731367] USB Serial support registered for cp210x
[6390234.731450] cp210x 4-3:1.0: cp210x converter detected
[6390234.880248] usb 4-3: reset full speed USB device using ohci_hcd and address 3
[6390235.066809] usb 4-3: cp210x converter now attached to ttyUSB2
[6390235.066848] usbcore: registered new interface driver cp210x
[6390235.066854] cp210x: v0.09:Silicon Labs CP210x RS232 serial adaptor driver

Well that was easier than expected, beter than windows that wanted a driver installing..

Now to see if I can talk to my board!...

(15 mins later)

All Working, shocked... now just to write a daemon that will monitor for input on the serial port and do something and also send stuff when requested, now that will take me some doing!

Ill add some pictures next week.

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