I have an ROV right now that uses 3 H-bridge relays to control two horizontal motors and a set of 2 vertical motors. My control box basically just has buttons to switch the relays on and off. What I want to do is switch the ROV to picaxe control, with a Picaxe on each end communicating serially. My problem is, I want to make it so I can have proportional PWM control on all the motors, forwards and backwards. This, I believe, requires 6 PWM outputs if I replace the relays with MOSFETs which is the only thing I can think of to do. Here are my questions:
1. How could I drive so many motors proportionally with so few PWM outputs?
2. Can I communicate through the Serout/serin pins while possibly operating a servo (for the camera) and operating the motors?
3. What would be the best picaxe project board to build this on (or will I have to make my own custom PCB)?
4. What picaxes would be best suited for each end?
Sorry if these questions have been answered, I thought I searched well. Thanks in advance!
1. How could I drive so many motors proportionally with so few PWM outputs?
2. Can I communicate through the Serout/serin pins while possibly operating a servo (for the camera) and operating the motors?
3. What would be the best picaxe project board to build this on (or will I have to make my own custom PCB)?
4. What picaxes would be best suited for each end?
Sorry if these questions have been answered, I thought I searched well. Thanks in advance!