Step 1: Parts Required
Schrack SPDT 16A 24VDC Relay x 3
1N4148 Diode x 3
BC547 Transistor x 3
3way Berg strip x 1
10KOhms Resistor x 5
470Ohms Resistor x 5
5mm LED x 3
3mm LED x 1
TSOP 1738 x 1
LM7805 IC x 1 (+ its filter parts - 470microfarad 50V electrolytic capacitor, 10nanofarad ceramic capacitor x 2, heatsink if necessary)
LM7824 IC x 1 (+ its filter parts - 2200microfarad 50V electrolytic capacitor, 330nanofarad ceramic capacitor, 100nanofarad ceramic capacitor )
Programmed PIC12F629 IC (Program Included)
8Pin IC Holder
240VAC to 24VDC 1A Adaptor + its female
A strip board to accommodate above
A Plastic Box to accommodate above + small screws and nuts
Step 2: Programming IC + Hex File
Use pickit2 or pic serial programmer to code the 'kumir.HEX' file into the IC.
Simple step, if you are in doubt here, give it to some electronics project shop and program it.
File Link - https://skydrive.live.com/redir?resid=5CED783880498823!141&authkey=!ABWOY6Cobjm8T1M
Step 3: Breadboarding
Here used LM7824 to get 24VDC for steady driving of the relay.
Here used some spare relays and berg strip replaced by a push switch for testing in breadboard.
Step 4: Stripboarding
Find the pictures.
Insert jumper and configure for any 3 button on any SONY REMOTE.
3 buttons will be stored in the IC, use it for switching the appliance.
Remove the jumper and use the appliance.
Step 5: 240VAC Circuiting
so when 24V adaptor is switched off the appliance will toggle ON of OFF, so that case it can also be operated by SPDT switch.