Arduino #4 - PB (Momentary Contact)

Design a Momentary Contact Pushbutton (press pushbutton AND release - LED comes on; press again - LED goes off). Your speed of depressing the pushbutton is 10-40 ms, but Arduino scans the PB circuit 1,000 times per second, so it's a 50/50 probability that the scan is correct unless you add de-bounce. Banzi explains how to implement software debounce with a series of exercises on pp 42-49. There are three examples - 3A, 3B, and 3C - with the final sketch in 3C on page 49. I want you to implement the Banzi sketch (3C), but add the Boxall hardware with the capacitor - see Boxall pp 63-70 using a small capacitor. Follow the Banzi sketch (3C). If you follow the Boxall Sketch (project 4), you will need to modify the Boxall Sketch (Boxall Project 4 - pg 69-70) so that the LED remains on after pressing the PB once, and the LED goes off after pressing the PB a second time.

Create a single post for this project on your student web pages. Reflect on how many and what kind of debug errors you had (hardware, schematic, sketch/software, or reading/understanding the assignment). Include a photo of your hardware and a 5-15 second video demonstrating the intended application with and without the hardware debounce (with and without the capacitor). Comment in your reflection which implementation (hardware or software) you think works better.