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Slide Switch
June 2, 2017
Introduction
There are two inbuilt 3-way slide switches in evive.
Slide switch 1 is connected to Arduino pins 40 and 41, both active high. This means that when the switch is slid up, pin 40 is high. When it slides down, pin 41 is high while both are low when the switch is in the middle.
Slide switch 2 is connected to pins 42 and 43, and behave similarly as above.
Note that pins 40-43 are all pulled low, i.e. they will be at 0V (and not floating) when the switch is not engaged.
Slide switches are used in motor control to control the direction of the motor.
Programming in Arduino IDE
The test code for the slide switch is:
Programming in Scratch
To get the state of slide switch in Scratch, we will use Slide switch () is in state () block. This block can be found under the Robots palette in the extension evive Inbuilt tools.
This block checks takes the slide switch number (1 or 2) and state to be checked for (Up or Down) as input and returns “True” if the slide switch is in the specified state and “False” if it is not in the specified state.
This block can be used in Arduino Mode as well as in Scratch Mode.
Example
- In this script, if the slide switch 2 is slided up (state 1), the LED on evive (connected to pin 13), glows.
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