
Components. Battery types, Switches, Capacitors, diodes, Transistors (& Darlington pairs), Electron flow, current, voltage, resistance, Capacitance, sub & multiple units. Simple circuits  inputs and outputs. Ohm's law, Power calculations, Series & parallel calculations, IC's, Binary counting. Logic. (AND, NAND, OR, NOR, XOR, NOT)  and logic combinations, LDR, Photodiode, Thermistors, Thermocouples, Microphones, Strain gauges. Breadboardng, Veroboarding, etching and photoetching. 555 timer, Binary counting.

