Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

dc motor 12V motor control using Rf module and no microcontrller

Status
Not open for further replies.

McPlay

Newbie level 5
Joined
Feb 28, 2012
Messages
10
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,372
Good evening
how do i control the dc motor speed using an RF module wireless system without using a microcontrller but analog component instead(eg: a comparator)?
please could you accompany the theoretical solution with a circuit diagram.
Thank you, McPlay
 

RF module may be beyond your skills and budget.
Consider IR module like TV remote control. It can be made to work 100m distance with a good design and low cost..
Look at current design of low cost Helicopter remotes. Cheap one sare generally indoors only since they dont have daylight blocking filter and react to sunligt.
Sharp makes good IR devices in IRDA. low cost. tx/rx simple. go research it.
 

What outputs have you got from your receiver?
Frank

hello
i have not able to simulate it as it is not on multism or proteus. how can i retrieve that information
McPlay
 

Classical RC motor speed control is by PWM. No need for MCU, RF carrier signal is modulated by a simple square-wave generator.
 

I guess that makes it harder with those imitations. Can you design a discrete TX Rx. TV remotes often use 38KHz IR Pulses for logic 1.
* THere are dozens of protocols now. with IR . and depends on bit rate, distance and type of data you need.

Left ribbon menu has many results of some common protocols for IR but by no means all methods.
https://www.sbprojects.com/knowledge/ir/rc5.php

Start simple.. as mentioned, with PWM, bi directional motor with full H bridge without memory using 50% for stop for ease.
Then consider macro commands, sequences, auto zero, auto stop then off, ramp to position slow with digital data.
Once must consider power to move and stop then hold states. Brushless Stepper motors have a weak magnetic stop position. Consider types of motors you need.

I dont know what range of functions you need
. Inputs, Outputs, functions... Analog or digital etc...
 
Last edited:

TV remotes often use 38KHz IR Pulses for logic 1.
And what do they do with all those zeros?
I dont know what range of functions you need
. Inputs, Outputs, functions... Analog or digital etc...
Then you have same problem as McPlay, so he asked for a proposal.
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top