2020-01-30 (Th) ProjectHoneybee

For some reason, the example code that looked for the sensor would enter an infinite loop if it didn't detect a sensor during startup. I think it was supposed to keep checking, but that wasn't how the code executed. A few changes fixed it so that it will not continue booting until it sees a sensor. Additionally, the screen will print a message about the missing sensor. This will be useful for a badge with a detachable sensor.

When I queried the sensor for a green light reading, it would return a value, but it was not responsive to any reflective or light-absorbing surfaces. I uploaded the basic example code and confirmed that the lack of a green light source was indicative of the sensor's inability in that regard. To verify that I could still read a pulse, I viewed the raw red light feedback on the graph, and my heart rate was as clear as day. The line graph matched the pulse I could feel on my carotid artery.
Heart monitoring

I made some changes to the code for the new sensor. Firstly, I removed the green numbers. Secondly, the red light feedback dropped to almost nothing when there was nothing to reflect off. I used the low reading as an indication of when the user took their finger away. Now, there is a message asking for the user to replace their finger on the sensor.
Two values and a finger presence notice

The rest of the posts for this project have been arranged by date.
First time here?

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

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2020-01-26

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