On the third session of the Electronics course we started by demonstrating the microprocessor program that we couldn't complete last time. After a brief revision of resistors we went on to look further at capacitors, and their use in timing circuits. We briefly discussed power in AC circuits and the meaning of RMS measurements. We began the subject of semiconductors with an exploration of the behavior of diodes, and their uses.
We finished by developing our microprocessor program to generate two different tunes on the press of either of the two input buttons
The notes from the session are here.