- pedro spoke about working with erik rosenthal, which was interesting to know.
- spoke about fundamentals of electricity, which i was well versed with because of my readings in physical computing (index).
- dc for small circuits, ac for power, long distances.
- each symbol in a schematic is representative of its experimental predecessor. for example, a battery looks like stacks of anodes & cathodes; capacitor looks like two metal sheets, et-cetera.
spoke about parallel and series. voltage is always divided equally between the number of loads in series, and same with current for parallel circuits.
saw differences between a smd resistor (surface mounted components), and through-hole resistor (components for breadboard).
spoke about resistor bands. realized how to read the resistor correct without reading it opposite, like i did once earlier:
always remember that the band with space preceding it (usually in a 4-band resistor) is for tolerance (-/+5 or 10% in resistance value from what it should be).
6 band resistors are usually for medical equipment, and what-not, where resistance cannot vary.
realized a ==pneumonic for ohm’s law: it went viral — v = i * r==. rest is just basic arithmetic.
spoke about current limiting resistors. it doesn't matter where you place the resistor, because electricity is a flow.
spoke about voltage divider circuits. a circuit with two equal resistors will cut the voltage /2 in the center-point. if unequal values, it’ll be a proportion of the powers of resistance.
spoke about capacitance. capacitors charge & discharge really quickly, but they can be slowed down with resistors. i’m going to try to make a wave generator (for sound) with this concept.