EBK LOGIXPRO PLC LAB MANUAL FOR PROGRAM
5th Edition
ISBN: 8220102803503
Author: Petruzella
Publisher: YUZU
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Chapter 9, Problem 13RQ
Program Plan Intro
Pushbutton:
- It refers to a normal switch process that is used to control some aspects of machine or process.
- Pushbuttons are normally built of hard materials such as plastic or metal.
- Pushbuttons are normally used in calculators, kitchen appliances, and various other
mechanical and electronic devices.
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Arduino programming exercises using Uno Microcontroller
Write a program that lights a green LED attached to pin 3. The green LED should turn off after a button attached to pin 4 has been pushed and released 3 times. Each time the button is pushed it will turn on a red LED attached to pin 7 and turn off a yellow LED attached to pin 9. When the button is not pushed the red LED will be off and the yellow LED will turn on. Assume the button is wired active low.
Turn on green LED
Leave it on
Turn on yellow LED
Leave it on
Check the state of the button
If the button is pressed
Add 1 to a counter variable
Turn off yellow LED
Turn on red LED
After the button is pressed, turn on yellow LED, turn off red LED
If the counter is 3 or more (>2)
Turn off green LED
* In the figure attached, the output voltage (Vout) will not equal to zero when the
:switch is
t = 0
R
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VS
Vout
Closed at Zero
Opened at zero
Open
Closed
Arduino programming exercises using Uno Microcontroller
Write a program that lights an LED attached to pin 3. The LED should turn off after a button attached to pin 4 has been pushed 3 times. Assume the button is wired active low. Assume there is least 1/4 second between button presses.
Chapter 9 Solutions
EBK LOGIXPRO PLC LAB MANUAL FOR PROGRAM
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