Code Refactoring
To avoid repeating Wi-Fi connection code, we can abstract the connection process into a separate function and save it in a separate file. On the right side of…
lonelybinary
Project – RGB LED (Analog)
In the previous project, we learned how to control an RGB LED using digitalWrite. By using digitalWrite, we could turn the internal red, green, and blue LEDs on…
Arduino with DHT11/22
In this guide, we will explore the DHTesp library, a powerful tool for interfacing with DHT temperature and humidity sensors in Arduino projects. The library works for Arduino,…
74HC595 8-Bit Shift Registers
The Birth of the 74 Series The 74 series ICs started back in the 1960s. Texas Instruments (TI) created these chips to help engineers build digital systems like…
Project – Binary Display
In this project, we’re going to create a fun binary counter using the 74HC595 shift register and 8 LEDs. The LEDs will light up to display numbers in…
Access Point Mode
In Access Point mode (AP), the ESP32 acts as a Wi-Fi access point, creating its own Wi-Fi network that other devices can join. This mode works similarly to…
Arduino with DHT20
The DHT20 is a high-precision temperature and humidity sensor that communicates using the I2C protocol. This sensor offers improved accuracy and reliability compared to its predecessors, with a…
Sensor Dashboard
In this project, we will create an ESP32 web server that displays real-time data from a connected light sensor. Most of the code is the same as the…
ESP32 Interrupts
An interrupt is a mechanism that allows a microcontroller like the ESP32 to pause the execution of the current program and execute a special function (called an interrupt…