IntroductionOTA (Over-The-Air) updates allow you to upload new firmware to your ESP32 over Wi-Fi, without physically connecting a USB cable.…
Author: Sai Preetham Koyyala
Sai Preetham Koyyala
Hello, I am Sai Preetham Koyyala. I'm an electronics engineer by profession, a DIY enthusiast by passion. ESP32 and Arduino are the main topics of my work.
IntroductionA Light Dependent Resistor (LDR), also called a photoresistor, changes its resistance based on the amount of light hitting it.…
IntroductionThe ESP32 has built-in Classic Bluetooth and Bluetooth Low Energy (BLE), making it incredibly versatile for wireless communication. In this…
IntroductionAdding a 16×2 LCD display with an I2C module to your Arduino project lets you show real-time sensor readings without…
IntroductionThe ESP8266 NodeMCU is one of the most popular Wi-Fi microcontrollers ever made. In this tutorial, we build a web…
IntroductionThe ESP32 draws ~240mA at full speed — draining a battery in hours. Deep Sleep drops this to as low…
IntroductionThe Raspberry Pi Pico W packs a dual-core RP2040 processor with built-in Wi-Fi for under $6. In this getting started…
IntroductionThe HC-SR04 uses sound waves to measure distance, exactly like a bat. It is one of the most useful and…
IntroductionMQTT is the backbone of modern IoT communication. It is a lightweight publish-subscribe protocol perfect for the ESP32. In this…
IntroductionThe ESP32 microcontroller has built-in Wi-Fi, making it the perfect platform for IoT projects. In this guide, we cover every…