I’m trying to talk to my V1.1 Smoothieboard with a serial connection using the UART. I am using a 768-1032-ND USB/Serial converter from Digi-Key and here is my config file.
I set the Smoothie to talk at 9600 baud, but that’s all I’ve changed in the config as far as communication stuff goes. I also just flashed it with the latest firmware this morning. So far I’ve been able to receive the debugging info, but it’s just a bunch of gobledegook to me.
It does not respond to anything I send it. I’ve tried GCode, as well as the help console command. No luck. I’ve also tried a whole slew of baud rates, from 75 to 128,000, still nada. The only thing that changed was that the debugging stuff was different flavors of gibberish each time.
Currently I only have the Rx, Tx, and Ground wired to the USB/Serial converter. I did try also wiring the RTS and CTS pins, but that didn’t seem to change anything. I also tried swapping the Tx/Rx around, but then I didn’t get the debugging stuff.
I can get everything to work over USB, so there shouldn’t be other hardware issues.
Anyone have any experience with this? Am I using the wrong type of serial converter?