Review on 💾 KNACRO Arduino Multi-Function Shield with 4-Digit Display by Smiley Edwards

Name: 💾 KNACRO Arduino Multi-Function Shield with 4-Digit Display
Item: 💾 KNACRO Arduino Multi-Function Shield with 4-Digit Display
Rating: 5

September 14, 2022

Beep is best in power converters

I like this shield, but it turns out that the logic for Beep has been reversed in the MultiFuncShield library for Arduino. You can change the default value of BEEPER_PIN and also override the value in writeBeeper(character value) in the .cpp file by entering "!" for the value in the function body. It's possible that this is an issue with the transistor that sits between the pin and the audio signal itself, and therefore needs to be changed in the software to fix the hardware issue.

Pros

Stable test results

Cons

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