So the previously posted code was working well on the breadboarded version of my project, so I started soldering it into a more permanent form. All was working well until I tried to add a volume knob to the audio output, and now all I get is a loud hum in the speaker when powered […]

New project, new code….

/* Rotary encoder: Connect the middle pin of the three to ground. The outside two pins of the three are connected to digital pins 2 and 3 Encoder button on pin 4 with a pulldown resistor DFPlayer module connected to digital pins 10 and 11 OLED connected to i2c SCL/SDA */ #include #include #include “SoftwareSerial.h” […]