| T O P I C R E V I E W |
| surajsun22 |
Posted - Jul 24 2010 : 1:29:32 PM
Hello...
for a few days i'm trying to make an RC car in which i want dc motor speed control..
therefore i want to ask whether PWM can be implemented on an Existing RF controller..
Thanx in advance...
(Edit...Move to Sound/Radio) |
| 15 L A T E S T R E P L I E S (Newest First) |
| Aaron Cake |
Posted - Aug 21 2010 : 11:33:50 AM
quote:
Originally posted by RRITESH KAKKAR
I want to have basic knowlege of RF circuit as there are some radio freq. transister & coil function in clockwise & counter clockwise.....?
Please STOP posting your questions under other people's topics. Create your own topic in the appropriate forum. I realize you are just trying to get answers, but if you continue randomly posting in other topics I'll be forced to close your account. |
| RRITESH KAKKAR |
Posted - Aug 20 2010 : 10:31:03 PM
Okk Okkkk.........! |
| boron |
Posted - Aug 20 2010 : 6:30:23 PM
Hi there. If you have questions not pertaining directly to the material discussed in this thread, I suggest starting your own with a clear set of questions and goals. |
| RRITESH KAKKAR |
Posted - Aug 20 2010 : 04:34:55 AM
I want to have basic knowlege of RF circuit as there are some radio freq. transister & coil function in clockwise & counter clockwise.....? |
| surajsun22 |
Posted - Aug 03 2010 : 01:49:49 AM
thnx |
| audioguru |
Posted - Aug 02 2010 : 11:08:16 PM
I buy RC models and parts from www.hobbyhobby.com in Canada. The ParkZone brand of RC airplanes have the assembled transmitter and receiver circuits as parts. |
| surajsun22 |
Posted - Aug 02 2010 : 10:36:35 AM
Ok! thanx ..
can link me to the website where i can purchase this 4-chnnel transmitter/receiver.. |
| audioguru |
Posted - Aug 02 2010 : 09:53:52 AM
You do not have the service manual so how can you modify the cheap circuit?
PWM is not simple. You need to modulate the transmitter somehow and demodulate at the receiver somehow.
My 4-channels PWM transmitter costs $32.00. It operates at 2.4GHz and automatically scans and selects a radio frequency without interference. The 4-channels receiver with PWM motor speed control is also inexpensive. |
| surajsun22 |
Posted - Aug 02 2010 : 03:08:50 AM
Yes u r right it is a simple on off rdio system..cn u give guidance to modify it for PWM..
basically i wanted simple PWM over radio system.so if possible pls provide me with the right tutorial for a DIY version..
thnx.
|
| audioguru |
Posted - Aug 01 2010 : 10:27:39 PM
You have a very simple and cheap on-off radio control system. You must modify the transmitter and receiver so they can use PWM for speed control.
But very cheap circuits do not have a service manual available for you to see the schematic, parts layout and parts list. |
| surajsun22 |
Posted - Aug 01 2010 : 08:42:26 AM
Ok thnx. i will try to figure it out by my self..
but i still expect someone else to ans my ques... |
| wasssup1990 |
Posted - Jul 31 2010 : 9:15:34 PM
Sorry I have no time for that. Try to figure it out yourself, after a while you will no longer be a newbie. |
| surajsun22 |
Posted - Jul 31 2010 : 11:04:06 AM
Can u pls explain clearly and probably with a circuit .cuz i'm a newby in this field..
thnx |
| wasssup1990 |
Posted - Jul 31 2010 : 10:12:28 AM
Modify the transmitter to send PWM bursts to the car where the modulation quantity comes from the potentiometers for the required directions like forwards and backwards. This may or may not work and you will probably need to have a very low PWM frequency as the receiver might introduce some form of delay, similar to de-bounce on digital push buttons. |
| surajsun22 |
Posted - Jul 31 2010 : 07:35:12 AM
Thanx for the reply...
But the RF controller i have doesn't have any PWM. it simply drives two DC motors forward and backward. so i was asking if somehow i can implement PWM to speed control these DC motors...?? |
