Arduino 8: PV Sensor Output to Seven Segment LED

Bar graphs are so last century. This is Century 21 ! The omnidigital error…er, era. If it don’t have numbers in boxes, it don’t have squat. So here I show how to adapt a simple seven-segment LED numerical display to the simple sensor-driven voltmeter. Figuring out the pinout and removing the blank lines and extraneous comments from the Osepp tutorial sketch were the hardest parts of the project. The basic bones of the Osepp tutorial are copy-pasted into the voltmeter sketch used in the last video, tweaked as necessary to work with my LED display…. theirs was common anode, mine common cathode with completely different pinout….. and removing the stuff that doesn’t apply anymore… and Bob’s your digital uncle.

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