In this tutorial, we will learn how to use GPIO pins of the ESP32 devkit with LED blinking examples using Arduino IDE. Whenever any beginner starts learning about any microcontroller-based development board, Experts always recommend beginners to start with an LED blinking example which is also kn...
/* HC-05 interfacing with NodeMCU ESP8266 */ #include <SoftwareSerial.h> SoftwareSerial btSerial...
Interfacing and Sensors Interface with the real world using 3-4 input/ouput pins. These can be used as buttons or switches, or to turn something on/off. The analog digital converter (ADC) can be used in patterns to read an analog signal such as a potentiometer. A Sensor Expansion Board...
The status LED and Button are for indicating operational statuses / interfacing with the controller in case of WiFi outage. The expansion header breaks out unused pins of the microcontroller and provides voltages for future expansions. 24V LED PWM ...
In my schematic of the Arduino Circuit board you can also see a small schematic for interfacing aMSGEQ7 chipto process Audio Input,this is absolutely not necessaryfor the actual cube and is just an additional functionality I added, hence you can simply ignore the Schematic marked with "MSGEQ7...