This is for a project I've been working on for a while, but I'm newer to electronics, so I would like input on how it could be improved, or problems that you spot.
**broken link removed**
-The receiver inputs will connect to an RC receiver output where it normally connects to the servos.
-The motor pins 1 and 2 will connect to the first DC motor and 3 and 4 will connect to the second.
-The PIC chips are programmed to capture the width of the PWM signal and output a motor control signal, depending on direction it sets one pin low and pulses the other pin. The ideal frequency is not something I've settled, as it seems to be debated wherever I ask, but the pics can be reprogrammed whatever the case may be.
-The Calibrate buttons will set the range of incomming pwm that the chip interprets as the top, bottom and middle of the range. If you look at my code that I've posted in my blog and elsewhere, you'll see that the parts to do that arent added yet.
-The 18V will come from a pair of 9V batteries
I have acess to a PCB milling machine, but it's not unlimited, so I want to make sure this is a good plan before I try to make it. And since I've never made a board I can use advice.
To try to anticipate a question, the reason I'm using a pair of 18F1320's instead of one chip that has two Capture inputs is that the electronics club at my university has a few shoe boxes full of them, and the only chips they have that have two Capture modules are the expensive USB chips (18F4550) which are actually worth more than two 1320 chips.
Thanks for any help