Join Michael Lehman for an in-depth discussion in this video Connecting outputs, part of Android App Development: Internet of Things.
- If your device needs to affect the real world,…you'll need to connect your CPU to the real world…using some kind of outputs.…The kinds of outputs you might have are,…analog outputs, again this is a varying voltage.…If you had an incandescent light bulb for example,…you would only be able to change the brightness of the bulb…by changing the voltage that's going into the bulb.…If you have a sound output, a speaker for example,…the only way to make that speaker make sound…is to vary the voltage, because that changes the magnetism…on the electromagnet that changes the speaker so that it…actually vibrates back and forth…creating the sound waves your ears can hear.…
You might have static digital outputs, for example,…something that could present a one or a zero.…The kind of thing that you might use to…turn on a relay, or not.…And then you might have, what are called…pulse-width modulated (PWM) digital outputs.…You often would use these is situations, for example,…with an LED, where you wanted to be able to control…
- Exploring the Internet of Things
- Understanding sensors and effectors
- Connecting inputs and outputs
- Connecting to devices via Wi-Fi or Bluetooth
- Creating Bluetooth apps using Android
- Creating your own things with programmable hardware
- Using IFTTT to program things
- Exploring the trends in things
Skill Level Intermediate
1. The Internet of Things (IoT)
2. Composing a Thing
3. Connecting to Things
4. Creating Things
5. Managing Your Things
6. The Future of IoT
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