Review on πΎ KNACRO Arduino Multi-Function Shield with 4-Digit Display by Blake Larson
Great tooth preservation product.
Only two problems but not with this product. But with software. The buzzer is active high. The documentation says it's active low. It doesn't hum when writing LOW to a digital I/O pin. And the example code for strobing a 4 digit display resulted in some digits being brighter than others. I fixed both problems.
- Easy setup
- I vaguely remember
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