IR switch using TV remote controller(RC5)

hi kp.mastermind
code is for 1736 but i think it should run also on 1738

actually in ckt its written 1736 but in market i am getting 1738

i think u can use it let try
u can use universal reliever too that receive every frequency
but i think u should try it will work if not work then there is a need of changing remote not a hardware

1736... get it from TV repair shop you will get it easily.

hello sir,
i am engineering final year student. right now i am studying ur project. i connected the circuit and soon as i gave the supply to it... pin 7 and pin 10 are getting shorted....can u hlp me solving this problm...
thanks in advance.. :-)

@ avinash7
pin 7 and pin 10 of what max232 or controller
it should not be short check ur hardware or replace the ic
its look some hardware problem

pin 7 and pin 10 of at89c2051...presently i am trying to drive led's with the controller...as soon as the supply is given every output pin of the controller goes high and all led's are blinking...after simultaneously swithing the power supply on and off at a particular moment the circuit works...and when again after swithching off and on the same problm repeats...every led blinks... i am not getting where i have went wrong.... The circuit works for some time and malfunctions the other tym... plz hlp me out...

@ avinash7
post ur hardware schematic
are you use RC reset circuitry i has doubt on that also ur supply should be of good quality means good dc supply

the circuitry i use is the schematic that i downloaded frm here...i have made no changes in it...placed all the components with their respective values...and dc supply is given frm a step-down transformer followed by a bridge rectifier circuit which finally gives 12v and 5v at the output

@ avinash7
if u use everything same then it should work fine as i also make it and test it
as u say that ur driving leds but in the whole project no led
just check a connection once more time after that connected it to pc and load its hex file and see in terminal software is it sending valid data to pc or not