The good old PIC16F84A does not have an analogue to digital converter (ADC) on board. A good solution to this problem is offered by the TLC549 serial ADC made by Texas Instruments. The TLC549 uses only 3 of the I/O pins of the controller, is very compact and is also readily available. The TLC549 control [...]

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In this experiment, we will build a simple two-transistor oscillator that will generate an audio tone in a speaker. 1. Build the Circuit. Using the schematic along with the pictorial diagram, place the components on a solderless breadboard as shown. Verify that your wiring is correct.

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