Ok I need major help designing a board and software for driving a DC motor by PWM and being able to change the frequencies by a touch screen LCD with the resolution of 240 x 128px. I have done a bit of research and found this thread on here for interfacing a PWM with a PIC.
http://forum.allaboutcircuits.com/showthread.php?t=44767
I want to be able to design the GUI myself. IF it will help you this is for a Gehl 1475 Round baler that has a Linear Actuator that feeds string into the baler. The current controls consist of a DPDT switch that just controls the 12VDC motor on the baler. This will be powered off a 12VDC 10amp tractor battery.
You might ask why a LCD, I plan to implement a acid applyer to the baler later and with the touch screen I can have it control solenoids that apply the acid.
I have to have a timer and a pwm to control the motor because think of the bale like this in segments...
[1-2-3] 1= left edge 2= middle 3=right edge. Each needs a different speed or PWM like:
[||-|-||] |= less wraps per inch ||=more per inch
the user interface will have a button to switch editing each of the three Pos. and be able to change the w/i (wraps per inch) and the PWM Freq.
I also plan to add a measuring device to tell how much twine is left by a linear sliding switch on a spring that clamps on to the roll. That i would think that you could take it and have it measure a resistance sent by the switch and convert it to feet left on the GUI.
Also i am a computer programmer not a pic.
Also i found this website, but i mainly do not know how to make the touchscreen edit the code or control the PIC's I/Os
http://evertdekker.com/Joomla/index.php?option=com_content&task=view&id=57&Itemid=84
http://forum.allaboutcircuits.com/showthread.php?t=44767
I want to be able to design the GUI myself. IF it will help you this is for a Gehl 1475 Round baler that has a Linear Actuator that feeds string into the baler. The current controls consist of a DPDT switch that just controls the 12VDC motor on the baler. This will be powered off a 12VDC 10amp tractor battery.
You might ask why a LCD, I plan to implement a acid applyer to the baler later and with the touch screen I can have it control solenoids that apply the acid.
I have to have a timer and a pwm to control the motor because think of the bale like this in segments...
[1-2-3] 1= left edge 2= middle 3=right edge. Each needs a different speed or PWM like:
[||-|-||] |= less wraps per inch ||=more per inch
the user interface will have a button to switch editing each of the three Pos. and be able to change the w/i (wraps per inch) and the PWM Freq.
I also plan to add a measuring device to tell how much twine is left by a linear sliding switch on a spring that clamps on to the roll. That i would think that you could take it and have it measure a resistance sent by the switch and convert it to feet left on the GUI.
Also i am a computer programmer not a pic.
Also i found this website, but i mainly do not know how to make the touchscreen edit the code or control the PIC's I/Os
http://evertdekker.com/Joomla/index.php?option=com_content&task=view&id=57&Itemid=84