<
###Actuation
<br>
<b>Making light</b>
- [LED (single, multiple, POV)](./Light/led/index.html)
- incandescent, gas discharge.
- [Laser pointers (laser modules)](./Light/laser/index.html)
<br>
<b>Controlling electrical current: FET and h-bridges</b>
- Unidirectional:
- [single FET](./FET/index.html)
- [Bipolar junction transistor for <= 1 Ampere.](./BJT/index.html)
- [Controlling in both directions using an h-bridge modules: H-bridge](./h_bridge/index.html)
- [Motor driver board with 2XH-bridge and ATSAMD11](./SAMD11_stepper/index.html) microcontroller. For use in PS70 Spring 2020.
<br>
<b>Motion.
[Overview from Sam Calish and Jake Reed, MIT 865.18, 2018](http://fab.cba.mit.edu/classes/865.18/motion/index.html)</b>
- [DC motors](./Motion/dc_motors.html)
- [brushed motors](https://en.wikipedia.org/wiki/DC_motor)
- brushless motors and controllers
- gear motors.
- vibration.
- [Stepper motors.](./Motion/steppers.html)
- bipolar
- unipolar
- [Servomotors](./Motion/servomotors.html)
- [solenoids](./Motion/solenoids.html)
- [linear actuators.](./Motion/solenoids.html)
- Lead screws.
- direct linear motors.
- piezo vibration.
- eddy drag.
<br>
<b>Fluid</b>
- fans
- [Valves](./Fluid/valves.html)
- low pressure air valves, eg organ solenoids.
- Pneumatic valves
- Tubing clamp valves
- pneumatic actuation
- ["soft" robots](https://softroboticstoolkit.com/)
- high pressure tube actuators [McKibben](./../Projects/Actuator2019/index.html)
- liquid flow: pumps.
- Chemical reactions.
<br>
<b>Sound</b>
- Speakers based on magnets.
- piezoelectrics.
- Sound synthesis.
<br>
<b>Communication.</b>
- wires - networks
- light (vis and IR)
- sound (sonic and ultrasonic)
- point-to-point radio.
- point-to-device - bluetooth radio
- point-to-web - wifi modules.
<br>
<br>
<b>Heat</b>
- Chemical reactions.
- Electric current.
-
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