Hi guys,
I'm looking into doing something similar to this. This post is very informative, however I still confused a bit. So this viking uses a macro chip to control all these features and all of the coding is stored on a eeprom after programming? With a DAC you can control some analog features? Now if for instance I wanted to control how the controller reads the analogs current but i wanted the stick to reach full current in half a push in any direction. I could could use a DAC or would an ADC be better? Cuz basically its hard for me to physically push the stick all the way to its end point. So the DAC or ADC would feed the macro binary code and the macro chip would tell the controller that the still is in full push when in reality the sticks on at half push?
Please let me know if you can help me out with this, This would very useful.
So just to clarify ADC and DAC do the exact opposite things.
ADC converts an analog signal to digital while DAC converts a digital "signal" to analog.
They provide for a way for the PIC to interface with an analog signal like the joysticks.
If you wanted a mod that increased the sensitivity of the joysticks then you could do it relatively easy with the ADC and DAC features on a PIC.
You would just read in the voltage using ADC, take that value and "multiply" or "divide" it by some constant(depending on the direction the joystick was pushed) and then send it back out through the DAC for that pin.
The only catch is that you need to find a PIC that has 4 DACs or is capable of steering the DAC to four different pins...since there are 4 different axes for the two joysticks.
It's probably a simpler approach than what is described above.
