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control few relays via infrared remote control

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sahu

sahu

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ir remote sw.

hi all,

want to control few relays via infrared remote control: some latch,some momentry and some timer based..and 1 port PWM if possible [for fan speed control].
it based on pic 16f676.

thanks...
 

Hi

It is a bit complicated if you are a beginner in the filed

First you need a transmitter or you can use a ready made from an old TV

Second you will need to decode the IR signal - you will need to use an IR receiver IC (see digikey for solution)

Also make sure the the transmitter frequency is the same as the receiver

3rd you will need to decode the IR command - most common decoding algorithm is the the RC5 - search the net RC5 and PIC876 and you will find many example project

4th use software to decode command and activate the relay ,PWM etc

All the best

Bobi

The microcontroller specialist
 

Check these links

**broken link removed**




Good luck
 

bobcat1 said:
Hi

It is a bit complicated if you are a beginner in the filed

First you need a transmitter or you can use a ready made from an old TV

Second you will need to decode the IR signal - you will need to use an IR receiver IC (see digikey for solution)

Also make sure the the transmitter frequency is the same as the receiver

3rd you will need to decode the IR command - most common decoding algorithm is the the RC5 - search the net RC5 and PIC876 and you will find many example project

4th use software to decode command and activate the relay ,PWM etc

All the best

Bobi

The microcontroller specialist
Click to expand...

thank u for ur repply.i am using 16f676.in place of 16f630 .this ckt coolcircuit.com. it working sossesf... LAG. IS VERY POOR .PL DON'T MIND EVERY BODY.
 

Hi,
I worked on ir remote control PWM. but used 18f4431 and rc5.
 

hey, why PWM in tx side...??

Send data (speed) to the rx side then produce PWM in rx side. U can use RC5, SIRCS or any other protocols...
 

mp3dux said:
Hi,
I worked on ir remote control PWM. but used 18f4431 and rc5.
Click to expand...
pl help me .if posibal it can change asm into 16f676 in place of 18f4431.i am right ?
 

anandpv2009 said:
hey, why PWM in tx side...??

Send data (speed) to the rx side then produce PWM in rx side. U can use RC5, SIRCS or any other protocols...
Click to expand...
NO .PWM in tx side.it is only rx side for fan speed contrl.
 

HI EVERY BODY
..........HAPPY NEW YEAR..........
..........HAPPY NEW YEAR 2010..........
 

No need of making a remote control. Just use a philips RC5 remote.
If you want, then i will provide you the RC5 decoder program for High Tech C compiler.
 

vinodstanur said:
No need of making a remote control. Just use a philips RC5 remote.
If you want, then i will provide you the RC5 decoder program for High Tech C compiler.
Click to expand...

yes pl post hear..
pl can u also add 1 port PWM if possible [for fan speed control].
 

Beware! that majority of Chinese DVD/TV remotes uses NEC32 protocol...and why you want a PWM? Do you want to controll DC fan Speed...but i think that may not be the case as you intend to controll speed of ceeling fan..so try using firing angle control ( thyristors based)...but all tasks you want can`t be accomodated in a PIC16F676....I once did a design with 8 ON/OFF relays+ 2 Fan Speed ( in 10 steps/with seven segment disply) + 14 Keys keypad....NEC32 based remote controlled......MCU used was ATMEGA8.
 

Most of the TV remote controls used to send a sequence of pulses(1011 etc) which can be easily decoded using modulated IT RX it is easy available and it is very cheap...38kHz IR receiver is the common one... Fed this in to one of the port, read the bit stream coming from it (You should be careful with the delay of reading...else you will miss some bits)....using this data you can do what ever you want..

If you are planning to built a IR remote urself, try to send some specific pulses using some logic....reception can be done as mentioned above...

IR Rx is a 3-terminal device....it have a VCC,GND and Out....Normally the OUT will be 1.......if it detect the 38kHz modulated IR, the output goes to zero....
 

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