Using a DFPlayer mini purchased on Amazon - Lacking functionality, could not get it to read file counts in the folder and it would just return -1. In folders numbered 01 – 99. File names with 3 digit ...
Connect ultrasonic and relay according to the pin defined in source code. Created DFPlayer as library and can be used in any project.
Abstract: This paper discusses about an advanced smart audio visualizer with equalizer, by assembling Arduino, DFPlayer mini, Metal Oxide Semiconductor Field Effect Transistor (MOSFET), an arrangement ...
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