Can anyone advise if its possible to use a PIC to control a PTZ camera using RS485 and the Pelco-P or Pelco-D protocol.
I already have a dome camera connected to a DVR and all is working well although the DVR isn't capable of controlling things like focus, Infra red filter etc etc. I don't really want to buy a ready made controller as I intent to mount this in a wall next to the LCD monitor which currently views the DVR.
I have seen a simple circuit somewhere that uses a PC RS232 port to control the camera using a MAX485 chip but ideally what I eventually build will be self contained and not rely on a PC.
I have experience at PIC's but it is really limited to the basics, Flashing LED's & printing text onto an LCD etc. I would like some direction to a circuit which has already been designed for the purpose of controlling a PTZ using Pelco-P or D which I can modify to suit my needs.
Thanks for reading...
Paul.