Uploaded February 2022 | Updated September 2026, 2 weeks ago
Show how to wire a photoresistor circuit and safely connect it to a BeagleBone Green (BBG) using a breadboard, 10k ohm resistor, and 3 jumper wires. Shows Linux commands to access the A2D and read the value.
Show how to wire a photoresistor circuit and safely connect it to a BeagleBone Green (BBG) using a breadboard, 10k ohm resistor, and 3 jumper wires. Shows Linux commands to access the A2D and read the value.




![Working with Layouts: Android Programming
Guide to working with relative and linear layouts for the Android.
UI with Layout
* Relative: Able to put things relative to each other.
- Really easy to mess-up UI, so only use a little.
- Put things in corners or middle.
* Linear: Horizontal or vertical
+ +
| [Button] [Button] [Button] |
+ +
* Why use a Layout?
- Better scaling to new screen sizes.
Demo:
Relative layout:
1. Activity with a relative layout.
2. Place some text in corners and middle.
3. Have 3 elements one-over next
Linear Layout;
1. Activity with linear layout.
2. Place text one over next
Both:
1. Activity with relative layout.
2. Add linear horizontal layout (centered)
3. Add text
Nested:
1. To previous, add vertical linear layout.
2. Add items to it.
Advice: Planning Layouts
- Identify what elements are group together; put them in Linear layouts. Working with Layouts: Android Programming](https://i.ytimg.com/vi/xn9KYnwIoBE/mqdefault.jpg)




