Hi. First of all - apologies if my first post is a stupid one or one that's been answered already.
I'm embarking on a robotics project that will be based on a tracked vehicle. Rather than trying to build my own chassis and cobbling together tracks and a drive train, I thought I could start with a pre-built RC tank and rip the guts out! Searching the 'net seems to suggest that Heng Long tanks are cheap and cheerful - since I'm not after realism, or even smoke/sound/BB firing, they sound like a good choice for me.
If I rip out the guts (including the main control board), I will have to provide the circuitry to control the drive motors myself. Does anyone know what kind of motors they are and how they can be controlled? (e.g. is it a simple "more current = more speed" affair, or are they servomotors that use a pulse train to set the speed, etc.?) I have found these threads - both give useful pinouts of the existing control boards, but no information on the motor connections.
Alternatively, does anyone know the protocol by which the RF reciever board talks to the main control board? That might help me decide whether it's a better idea to replace the main board or keep it and piggyback my electronics on top.
Thanks, and any advice you can offer (even "you're crazy, it'll never work") is much appreciated!