+ Reply to Thread
Page 1 of 2
1 2 Last
Results 1 to 15 of 19

Thread: schematic diagram of transmitter and receiver of a rf circuit

  1. #1
    rantkim Newbie
    Join Date
    Aug 2009
    Posts
    3

    Smile schematic diagram of transmitter and receiver of a rf circuit

    hi everybody,
    i'm very new in the field of robotics. I have planned to make a remote controlled car. for this purpose i'll need to have radio frequency circuit comprising of transmitter and receiver.schematic diagram of this circuit will help me to a great extend . if you can the circuit diagram i would be thankful....


  2. #2
    Help us help you blueroomelectronics Excellent blueroomelectronics Excellent blueroomelectronics Excellent blueroomelectronics Excellent blueroomelectronics Excellent blueroomelectronics Excellent blueroomelectronics Excellent blueroomelectronics Excellent blueroomelectronics Excellent blueroomelectronics Excellent
    Join Date
    Jan 2007
    Location
    Toronto, Canada
    Posts
    10,705
    Blog Entries
    5

    Default

    How many channel? Crystal controlled? Servos?
    Bill
    Smart Kits build Smart People

    http://www.blueroomelectronics.com/

  3. #3
    EN0
    EN0 is offline
    EN0 Newbie
    Join Date
    Jul 2009
    Location
    Outer Space
    Posts
    223

    Default

    Quote Originally Posted by blueroomelectronics View Post
    How many channel? Crystal controlled? Servos?
    I doubt he would want servos. They are usually very slow to deal with, a robot project would use servos more likely.

  4. #4
    rantkim Newbie
    Join Date
    Aug 2009
    Posts
    3

    Default

    at least 10 channel would be required. and servo

  5. #5
    EN0
    EN0 is offline
    EN0 Newbie
    Join Date
    Jul 2009
    Location
    Outer Space
    Posts
    223

    Default

    and servo
    No kidding! Well that will be a fairly slow car.

  6. #6
    Help us help you blueroomelectronics Excellent blueroomelectronics Excellent blueroomelectronics Excellent blueroomelectronics Excellent blueroomelectronics Excellent blueroomelectronics Excellent blueroomelectronics Excellent blueroomelectronics Excellent blueroomelectronics Excellent blueroomelectronics Excellent
    Join Date
    Jan 2007
    Location
    Toronto, Canada
    Posts
    10,705
    Blog Entries
    5

    Default

    A little hard to DIY, good news is you can buy them from an RC shop.
    Bill
    Smart Kits build Smart People

    http://www.blueroomelectronics.com/

  7. #7
    rantkim Newbie
    Join Date
    Aug 2009
    Posts
    3

    Default

    you just give the schematics diagram of transmitter and receiver...this is my first attempt to build a robot..thanks in advance

  8. #8
    nickelflippr Good nickelflippr Good nickelflippr Good nickelflippr Good
    Join Date
    Oct 2006
    Location
    Oregon, USA
    Posts
    488

    Default

    Sounds like a stickup. Hand 'em over or the kid gets it.

  9. #9
    EN0
    EN0 is offline
    EN0 Newbie
    Join Date
    Jul 2009
    Location
    Outer Space
    Posts
    223

    Default

    Quote Originally Posted by blueroomelectronics View Post
    A little hard to DIY, good news is you can buy them from an RC shop.
    Man! That remote control would be very expensive! Especially with that LCD display. I've actually used one of my remote controls for a completely different model and it worked! That is because they were on the same frequency. If you have another remote control like that laying around you could modify the frequency and you might have to modify the data code.

  10. #10
    Triode Good Triode Good Triode Good
    Join Date
    Feb 2009
    Location
    Milwaukee Area
    Posts
    533
    Blog Entries
    4

    Default

    I have seen some PICs that say they have RF capability, but I haven't looked into it much, so don't know what other parts are required, which ones to use, or how hard it would be to code them to work like an RC car controller. Still something to look at. Anyone know about these?
    -Paul

  11. #11
    Super Moderator Nigel Goodwin Excellent Nigel Goodwin Excellent Nigel Goodwin Excellent Nigel Goodwin Excellent Nigel Goodwin Excellent Nigel Goodwin Excellent Nigel Goodwin Excellent Nigel Goodwin Excellent Nigel Goodwin Excellent Nigel Goodwin Excellent Nigel Goodwin Excellent
    Join Date
    Nov 2003
    Location
    Derbyshire, UK
    Posts
    29,788

    Default

    Quote Originally Posted by Triode View Post
    I have seen some PICs that say they have RF capability, but I haven't looked into it much, so don't know what other parts are required, which ones to use, or how hard it would be to code them to work like an RC car controller. Still something to look at. Anyone know about these?
    I looked into them years ago, they are VERY, VERY complicated - essentially you built a transmitter and receiver around them, you need a LOT of external RF parts.

    As already suggested, use a normal cheap RC system, alternatively you could use PIC's and licence free radio modules.
    PIC programmer software, and PIC Tutorials at:
    http://www.winpicprog.co.uk

  12. #12
    Triode Good Triode Good Triode Good
    Join Date
    Feb 2009
    Location
    Milwaukee Area
    Posts
    533
    Blog Entries
    4

    Default

    I need to get on with that project of mine to make a pic read the PWM servo control signal from one of those RC recievers. I've just been busy with other stuff. I think the last thing I acomplished towards it was making a timer call work (so that I can setup timed multitasking for PWM reading/generating) but I haven't gotten to where I fully understand timer use and configuration.
    -Paul

  13. #13
    arhi Excellent arhi Excellent arhi Excellent arhi Excellent arhi Excellent arhi Excellent
    Join Date
    Apr 2008
    Location
    Belgrade, .rs
    Posts
    832

    Default

    free radio modules either have no power to cover a needed distance (usually they all work ~30m if no obstacles between sender and receiver) or they are too expensive. I did a lot of research and there is no way to make yourself a powerful (over 30m) send/receive pair that is going to cost same/less then the ready made one available in hobby shops. Even with shipment to this God forsaken land + customs - it is still 2x cheaper to get ready made (full with sticks, antenna, case, switches, connectors, batteries) pair then just to get parts to make one yourself.

    Under 30m the story is different, but under 30m you can scavenge parts from cheep CNR toy if you do not need many channels - and that will be ~same price as you build it yourself (or slightly cheaper) but it might be worth doing it yourself just for the learning purpose..

    On shorter distances (<10m) IR rulez . Never tried the IR communication outside during daytime, but for inside - it works like a charm

  14. #14
    arhi Excellent arhi Excellent arhi Excellent arhi Excellent arhi Excellent arhi Excellent
    Join Date
    Apr 2008
    Location
    Belgrade, .rs
    Posts
    832

    Default

    Quote Originally Posted by ElectroNerdy View Post
    Man! That remote control would be very expensive! Especially with that LCD display.
    I think Bill put this one as an example only... you can get remote's from 3 up to 32 channels (probably even more but I personally never laid eyes on more then 32)... more channels - more money...

  15. #15
    Triode Good Triode Good Triode Good
    Join Date
    Feb 2009
    Location
    Milwaukee Area
    Posts
    533
    Blog Entries
    4

    Default

    Yeah, that was a premium one, but you can definitely get one cheaper, used off an acution site, or just a cheaply made budget one, way cheaper and easier than you can make one from scratch.
    -Paul

+ Reply to Thread
Page 1 of 2
1 2 Last

Similar Threads

  1. schematic Diagram of Black and White TV Receiver
    By Ayne in forum General Electronics Chat
    Replies: 15
    Latest: 10th January 2010, 08:51 AM
  2. Circuit Diagram Schematic Sites
    By electronics_shamim in forum Chit-Chat
    Replies: 3
    Latest: 27th April 2007, 12:42 PM
  3. circuit diagram of super heterodyne am receiver
    By thedew in forum General Electronics Chat
    Replies: 2
    Latest: 27th April 2006, 10:33 PM
  4. circuit diagram/schematic diagram of remote light control
    By xhandz in forum Electronic Projects Design/Ideas/Reviews
    Replies: 1
    Latest: 20th June 2004, 04:48 AM
  5. I need any trasmitter and receiver circuit diagram
    By amin_yazarloo in forum Electronic Projects Design/Ideas/Reviews
    Replies: 1
    Latest: 18th February 2004, 09:17 PM

Tags for this Thread