components
identify parts, read values, and learn what each one does.
cables & wire
solid vs stranded, gauge
diodes
direction, drop, protection
variable resistors
pots: divider & rheostat
resistors
values & color codes
capacitors
store & smooth energy
leds
blink, dim, and color
switches
spst, dpdt, click!
relays
electrically operated switches
transistors
tiny current magicians
connectors
plugs, sockets, headers
555 timer IC
classic timers & fun circuits
4000 series ICs
cmos logic basics
74 series ICs
ttl logic basics