External Interrupts for chipKIT

Interrupts with chipKIT DP32

Jay Weeks of Digilent is back with another very useful “Instructable” about external interrupts. Armed with a chipKIT board, a USB cable, and a piece of wire, he guides you through some example code, so that you can see for yourself how interrupts really work! Using very simple explanations, he discusses polling vs. interrupts, and then he delves deeper into the topic to discuss debouncing, interrupt service routines, volatile variables, and more. Check it all out at Instructables.

Interrupt away!

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Difference Between Interrupts and Polling

How does chipKIT Uno32 know when the button is pressed... By Polling or Interrupts?
How does chipKIT Uno32 know when the button is pressed… By Polling or Interrupts?
If you’re new to microcontrollers and you want a quick overview for using polling or interrupts in your sketch, Digilent has just the blog post for you! In this post, James explains the differences between using polling vs. interrupts to determine when an input (like a button press) has occurred.
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