Breadboarding a mobo - currently have connected 3 x pololu step drivers, an SN75176 transceiver, power, ground, and motor power. Motor drivers are connected to the matching pins for the sanguino mobo v 1.2 pinouts - xyz - dir, step, enable. Writing my own sketch to exercise the motors - works great. Loaded the 5G interpreter onto the board - verified configuration.h, verified pins.h. After upload , the board goes to the 2hz blink on the debug LED. started the reprap host program, and set com port to COM4, and commsdebug=true Running the host program, and connecting to my board generates one of two outcomes: 1. The console sends a single line that reads: N0 TO *26 OR 2. The console reads "Attemoting to Initialize Arduino/Sanguino" I tried this from a different machine, to rule out windows, com port issues, basic communications - I get the same results on two different host machines. My questions: First - If I just program a Sanguino, not connected to anything at all other than the USB FTDI cable, what will the RepRap host software display when connecting to the device? Second- What are the bare minimum of things I need to connect to the Sanguino to make it visible/responsive to the RepRap host software (either real things, or just tying pins to ground/vcc/resistance) Third - Any ideas about either of the messages that I get from the console? Thanks in advance, T3kboi https://reprap.org/forum/read.php?12,44451,44451#msg-44451 Thu, 16 Jul 2026 03:54:34 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?12,44451,44697#msg-44697 https://reprap.org/forum/read.php?12,44451,44697#msg-44697
Windows -

In addition to configuring baud rate settings in the reprap host software, I had to go to Device mangler in windows, and manually change the port settings there as well.

So when using reprap host - I set to 19200,N,8,1
When using replicatorG - 38400, N,8,1

If I don't set it in device mangler as well as in the host software, I only get partial comms with the mobo - strange responses, timeouts, etc.]]> t3kboi RepRap Host Wed, 05 May 2010 17:18:24 -0400 https://reprap.org/forum/read.php?12,44451,44451#msg-44451 https://reprap.org/forum/read.php?12,44451,44451#msg-44451
Motor drivers are connected to the matching pins for the sanguino mobo v 1.2 pinouts - xyz - dir, step, enable.

Writing my own sketch to exercise the motors - works great.

Loaded the 5G interpreter onto the board - verified configuration.h, verified pins.h.

After upload , the board goes to the 2hz blink on the debug LED.

started the reprap host program, and set com port to COM4, and commsdebug=true

Running the host program, and connecting to my board generates one of two outcomes:

1. The console sends a single line that reads: N0 TO *26

OR

2. The console reads "Attemoting to Initialize Arduino/Sanguino"


I tried this from a different machine, to rule out windows, com port issues, basic communications - I get the same results on two different host machines.

My questions:

First - If I just program a Sanguino, not connected to anything at all other than the USB FTDI cable, what will the RepRap host software display when connecting to the device?

Second- What are the bare minimum of things I need to connect to the Sanguino to make it visible/responsive to the RepRap host software (either real things, or just tying pins to ground/vcc/resistance)

Third - Any ideas about either of the messages that I get from the console?

Thanks in advance,

T3kboi]]> t3kboi RepRap Host Mon, 03 May 2010 00:45:08 -0400