led
Light emitting diodes (LEDs) are semiconductor light sources. The light emitted from LEDs varies from visible to…
TSOP 1738 : Component
TSOP1738 TSOP is the standard IR remote control receiver series, supporting all major transmission codes.…
IC 7490
74LS90 : Counter The 74LS90 is a simple counter (IC 7490) , i.e. it can…