I am trying to put together what I thought was a simple task.
it has two main parts
a PWM driving a DC brushed motor. That part was very simple.
an LCD display that would show the set point of the PWM motor and then display the Current/Load on the motor.
I have a 1 ohm resistor on the motor and I am reading the voltage across that. This I will display on the LCD.
I have the motor running and I have the LCD running but when I try to work the two together, the motor dies.
It appears that trying to write to the LCD and at the same time run the motor creates the problem.
I can explain this further or show the code if anyone has interest.
I really need to solve this one.
If I can not solve it I will have to use a seperate display that is not linked to the motor drive but I prefer to do it this way as it makes the whole thing more simple.
steveinboston:
I can explain this further or show the code if anyone has interest.
I really need to solve this one.
If I can not solve it I will have to use a seperate display that is not linked to the motor drive but I prefer to do it this way as it makes the whole thing more simple.
Might be a heck of a lot more helpful to see some code and a circuit.
For all anybody knows, you’re programming for an ENIAC and using a monkey to turn a motor.
I’ll put a second pair of eyes on it if you bring your setup to the asylum. Maybe I put you off ,but I’m a nice guy and like to help, as do many others there if we’re stumped.
When you say “I have the motor running and I have the LCD running but when I try to work the two together, the motor dies. It appears that trying to write to the LCD and at the same time run the motor creates the problem” … what is it you’re doing, exactly ?
Do you have 2 separate sketches, each of which runs and works or do you have 1 integrated sketch that works when you have the LCD attached or when you have the motor attached, but not with both attached ? Because if it’s the latter the software really doesn’t “know” what’s attached … there’s no communication from the motor or the LCD to the Arduino. This would tend to tell me you have some hardware issue, probably with how you’re supplying power to both items.