2020-08-05 (W) InCompass

I got my modified code working on the bare-bones Cardinal, miniCard. Now, I could view live readings and get vibrations like the full version. For clarity, I stripped out the commented code once I saw it working.

Since I didn't have a radio, all my controls had to be hard-wired. I debated if I should use a reed switch or a push-button. I decided on the button for simplicity's sake and because I had just removed the Arduino's reset button and repurposed it.

Powering this version was going to be different. Instead of an onboard battery charger, I was going to use a USB battery pack connected through a micro USB socket. I installed the port across spare IO terminals to have solid mounting points, but the pins would be unusable as inputs or outputs. I ran wires from them to GND and RAW. I tested with an ordinary USB cable, and it powered up and ran perfectly.

The strangest thing happened. When I called the digitalRead() function to check my button, the program would lock up. It must have been an issue with one of the sensor libraries because when I created a bare sketch with digitalRead(), there were no problems. I will look into alternative methods.
Button and power input on MiniCard

GitHub repo for Cardinal, aka InCompass

The rest of the posts for this project have been arranged by date.
Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Completed projects from year 7

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