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Topic: Interfacing Arduino Uno with Little Step-U (Read 826 times) previous topic - next topic

ncsteinb

I have been trying to interface my Uno with the little step-u stepper controller. The manual for the LSU says it responds to serial TTL commands. I am assuming the Uno should output TTL serial, right? :-?? So in the Uno, I have written a simple code that the LSU should understand:

void setup(){
 Serial.begin(2400);
 Serial.println("{E1000}");
}
void loop(){
}


pretty simple, the {E1000} means move 1000 steps....
But....I cannot get the LSU to do anything. I am supplying the stepper with 6v because the motor is 6v. I am giving the LSU +5v. I have verified that the Uno is outputting the correct code by using a MAX232 converter to go from TTL to RS-232. Does anyone have experience running a LSU with an Arduino????

thanks.

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