1 Topic by SeekingSanctity (edited by SeekingSanctity 2014-02-13 00:28:33)

  • SeekingSanctity
  • Newbie
  • Offline
  • Registered: 2014-02-12
  • Posts: 2

Topic: Using TTL to communicate with Sanguinololu

A little while ago, I managed to damage my Solidoodle's USB port pretty badly. After un-soldering it and replacing the component, the traces on the board had become so damaged that I couldn't connect to my board.

So, I decided to try to connect to the board using the Sanguinololu's TTL pins instead. I bought a USB converter, installed drivers for that converter, soldered some header pins to the board and gave it a try.

The converter supplies 5V power to the board just fine, and Repetier-Host recognizes the converter as a serial device, but I can't seem to communicate with the board. Does anyone have advice for my particular situation?

SOLVED: Wiring DTR was the key to getting this working.

2 Reply by elmoret

  • elmoret
  • Filastruder
  • Offline
  • Registered: 2012-10-11
  • Posts: 6,048

Re: Using TTL to communicate with Sanguinololu

What pins are you using now? You will most likely have reecompile/reflash the firmware.

Bet you could get a used Sanguinololu on here for like 40 bux. Way less hassle.

Filastruder - the robust, inexpensive filament extruder
E3Dv6 All Metal Hotend - the premier 3D printing hotend

3 Reply by SeekingSanctity (edited by SeekingSanctity 2014-02-12 22:46:24)

  • SeekingSanctity
  • Newbie
  • Offline
  • Registered: 2014-02-12
  • Posts: 2

Re: Using TTL to communicate with Sanguinololu

I'm currently using the TX, RX, 5V and Ground pins, matched to my converter's corresponding pins. (TX to RX and RX to TX, as I'd assume for Serial). The Sanguino has a DTR and redundant ground pin that I'm ignoring. My next step is to see if I can communicate to the Sanguino in Arduino, and then reflash the firmware.

I do have a new Sanguino kit in the mail, but it would be nice to salvage this board.

EDIT: Or it could be an issue with the converter's driver. I'll post here as I try these!

EDIT2: A little research turned up that I'll probably need to use the DTR pin as well. As soon as I get back from class, I will be trying this.