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A few things to check: 1) Your remote control has good batteries. 2) Your remote control is programmed with the Sony TV code. (Instructions are in the tutorial.) 3) Your remote control is set to TV mode.
If you are using a breadboard-based kit, make sure: 1) The IR receiver's pins are oriented properly. 2) The IR receiver is connected to the correct pin on the microcontroller.
If you continue having trouble, please post more specific information about what's happening. |