romote control

young · Joined: 24 Jun 2004 Posts: 285

I would be very appreciate to know what kinds of transmiter and receiver are popular in PIC application. I am think to developed a system to send data to control a robot from a PIC (A)and then another PIC (B) receive the command to data to do anything according to command. and return some signal back to PIC (A). please list the part number that I could use, if possible, some sample will be much more appreciated.

Thank you.

Trampas · Joined: 04 Sep 2004 Posts: 89 Location: NC

Look at the keeLoq chips from Microchip.

Trampas

Guest · Guest

May not be as sophisticated as the Keeloq devices suggested by a previous post, but you may try looking at some of the rf Rx/Tx components sold by Rentron, for starters. They have some digital AM pairs that are relatively easy to work with and interface to a PIC. They also give datasheets and schematics to get you started. Mated with encoders/decoders, the coding is pretty easy.

Several rf modules are made by Linx. Try Spark Fun as well.

HTH,
BIllT

young · Joined: 24 Jun 2004 Posts: 285

Thank you very much for the infor. I read the artical from this company to get some idea about remote control. these project are for unidirectional communication.

Are there any bidirectional control system or chip, so that I could control a remote system to do something I want, for example to collecting data, and then after collecting data, I can send signal to ask for the remote system to send back the collected data to the main station. this way will need two way communication just as a common RS232 communication?

Guest · Posted: Wed Nov 17, 2004 12:53 pm

johnl · Joined: 30 Sep 2003 Posts: 120

Look at Maxstream or Aerocomm transceiver modules. They are wireless bi-directional serial links.

Rocket · Guest

The new Buzz in short range RF comms is the ZigBee spec. The spec is also known as 802.15.4 It is meant to be a cheap alternative to Blue Tooth. Freescale has a chip called MC13192 that is meant to be very neat, and comply with the spec, 2.4Ghs spread spectrum etc.
I am starting a project with this device now. It would be great if a ZigBee stack becomes available for a PIC in CCS.

Mark · Joined: 07 Sep 2003 Posts: 2838 Location: Atlanta, GA

Zigbee would be way overkill for something like what he is referring to. Now he could take a look at SMAC that comes free from Freescale for use with 802.15.4