help with IR relay circuit thing

i need help making a small device. i need to turn an electronic on that has only a power button. i have a smart remote that has a learning feature. the only power i have in standby is 3.3v. so i need the ir sensor and "chip" to be powered by 3.3v. and when i push a certain button on the remote it should activate the relay to cross the two wires inside the electronic to turn it on. i am good at soldering i just need some schematics. i guess the only other thing to be covered would be how to make the "chip" know the certain command that the ir emitter would produce.

For this project you need to use a PIC microcontroller.
See here
3-Channel IR Relay Controller
for example a complete project that uses PIC12F629 microcontroller.
This include also hex code/and instructions how to program remote codes into the PIC. You could either use a solid state relay or use a NPN transistor and a 3.3V relay, but for your particular situation it's doubtful there will be enough current available from the 3.3V power supply to drive a normal relay coil. There are reed relay types that will work from logic-level currents, but the minimum coil voltage is about 3.75V on the 5V model .