With this hack you will be able leave the remote in a room and it will turn the TV on or off/change the channel every couple of minutes automatically.
Please note that this was produced n a college dormroom and was done with the few supplies I had. I am sure that there is a way to make this more compact but I did what I could.
Thinkgeek Micro Spy Remote
Thinkgeek conductive glue
555 timer chip
9-volt battery connector
High Gauge wire
Aluminium can (optional)
Tape (electrical tape works well)
needle nose pliers
wire cutters and strippers
possibly other common household tools.
Step 1: Deconstructing the Remote
Use a knife to peel back the front covering of the remote. It is a flexible piece of plastic with an adhesive on the inside surface. There are also black dots of conductive material that makes a connection when the "buttons" are pushed.
Remove 6 Phillips head screws. Keep these in a safe location for later. Lift the circuit board out of the lower casing by carefully lifting the back side up first and then pulling out. The goal is to not damage the infared LEDs at the front of the circuit board.
Keep the sticking front plate from sticking to anything by keeping it in a safe place. Try to maintain the integrity of the adhesive to make it easy to reassemble later.
Step 2: Prepare Remote's Circuit Board
---Below are 2 pictures, one shows the power button being hooked up and the other shows the channel up button. The procedure for connecting the different buttons is the same. What button you choose to use is up to you.
Step 3: Creating the Circuit
R1= 512 =ohms (or close to that, this determines how long the remote transmits its signal)
R2= 300k ohms (this determines the time in between transmissions, you could increase resistance to make larger pauses between transmissions)
C1= 1500uF (micro Farads) (This value can also be changed to manipulate the time between transmissions)
This circuit also requires a relay. I used an eight pin relay because that is what I have but I'm sure other ones will do fine. The relay is not depicted in the image below but it is easy enough to connect.
Connecting the relay to the rest of the circuit
--Connect pin 3 of the 555 timer to the +(positive) side of the power on the relay.
--Connect the -(negative) side of the relay to the negative side the of power supply
--Power circuit with somewhere between 6 and 9 volts (9-volts is what I used in this instructable).
Step 4: Assembling the Remote and Circuit
Step 5: Make a Battery Holder (Optional)
Step 6: Final Assembly
Cut out pieces of cardboard to act as spacers. Make these spacer to fit your circuit and glue them down.
Apply glue to cardboard strips and attach remote to circuit. (I found that rubber cement worked well for gluing the cardboard to the plastic but other glues will work as well.)
Insert battery into battery holder and tape in place.
Reapply front button sticker on remote. Now it is DONE.