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====== Testing the Volume Control ====== The transmitter to the TV uses a circuit that incorporates a 555 chip. The signal from the microcontroller is sent to the 555 chip, which outputs as carrier signal. By setting the input to the 555 chip as high, it was found that the chip outputs a carrier signal with a frequency of 27kHz. Setting the reset to low shut off the carrier signal. We attempted to test the receiver circuit using the transmitting circuit. It appears that they use different frequencies, so this was not possible. Using the LED on the transmitting side and a signal generator, we transmitted a signal of It was concluded that it would be simpler to create a whole new circuit, with the transmitter and receiver on separate boards.

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