Im tryng to create a XY routine to control 2 DC-Motors with L6204+L6506 Ic's. I have the 2 DC Motors, 2 end stop switches for each axis and 1 switch to set the motors to "home". In that case "home" is a middle position. So, the chalenge is: Initialize the motors and set than to home position. Afte…

That would work for a stepper motor and a stepper motor driver. But for a PWM-controlled DC motor, it sends the same number of pulses per unit-of-time, but varies how much energy is in the pulses to vary how fast the motor moves.

There is no way to count this pulses between switch0 and switch1? S1 and S2 are the end stop's...

...Yes, you can count PWM pulses, they come out of an Arduino UNO at 490Hz or 980Hz per analogWrite() - Arduino Reference but you'd also need the Widths of the PulseWidthModulation signals to get the energy, and then that still wouldn't be enough to get you to an accurate position. PWM acts somewha…

If you are talking about PWM-pulses it will be pretty difficult to count them. But there is a much bigger problem than that. The distance how far the motor will move with a single pulse will be varying toooooo muuuuuch! You might get a precision of 5 mm out of this. I wouldn't be astonished of t…

depending on your budget you can realise a XY-movable device pretty cheap if you don't want high perfomance and high precision. How much performance and precision is needed depends on your final purpose to move XY. It might be possible for $30 it might require $500 depending on your real project a…

I just want to replace an old control board... The board work with the L6204 without a encoder, just with 2 switchs to refference location

Pics? Better description? If the motors happen to run at consistent speeds, perhaps like a gearmotor driving a leadscrew, you could measure the time between switch activations.

OK, maybe you can just measure time then. If there is a PWM adjustment on the existing device it likely controls speed, and you'd need to re-measure the times whenever you change the PWM/speed.

XY Routine to control 2 DC Motors with L6204+L6506

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DaveX May 6, 2024, 9:20pm 23

If you have no code at all yet, try:

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XY Routine to control 2 DC Motors with L6204+L6506

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