What do sensors do?
Measure changes in the environment around them
What are some common sensors?
LDRs (Light Dependent Resistors)
NTC thermistors (Negative Temperature Coefficient)
Proximity sensors
Pressure sensors
What are transducers?
Electrical components that convert one form of energy to another
What are some common transducers?
Sensors (light, temperature, etc)
Motors
Solenoids
Sound outputs (bells, buzzers, etc)
What do actuators do?
Turn electrical, mechanical or environmental signals into a physical movement
What are some common actuators?
AC & DC motors
Servo motors
Stepper motors
Solenoids