Instructables

WANTED: Arduino modules with RS-232

Somewhere previously, (which I thought I had favorited, but obviously didn't), someone pointed out USB Arduino modules are simply converting back to RS-232 when programming the chip. As I want to do my development without Windows or USB, I would like to know if there is anyone out there who has excess modules with RS-232 connectors directly attached, even if I have to pay for the USB versions as a swap. Otherwise, if someone knows these modules better, a USB by-pass straight to the RS-232 part of the module would also be appreciated.

Mic

caitlinsdad4 months ago

I think you are looking for the older Arduino boards that require the FTDI dongle to act as a USB interface to the computer. Although, I think all boards have the ICSP pins that you can access directly, or at least solder on some header pins to make it easier to connect.

Treknology (author)  caitlinsdad4 months ago
Thanks,

If they will allow direct RS-232 communication with a pre-Windows era machine, then that's probably what I want. Being in Australia, postage will also be a consideration.

Secondly, as RS-232 is 12-volt protocol, that is why I seek the earlier boards that already have the appropriate socket installed. I'm sure that if someone is successful in identifying the i'ble that I'm unable to locate, that original poster will be able to provide more useful information.

Mic

http://www.instructables.com/id/Adding-ICSP-header...

maybe the link in step 4 there will help.