Stop Relying on USB Cables!One of the most common mistakes beginners make is trying to power heavy loads (like servo…
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 relay module is the bridge between your Arduino’s low-voltage world (5V) and high-voltage appliances (230V AC). It uses an…
IntroductionThingSpeak is a free IoT analytics platform by MathWorks that lets you collect, visualize, and analyze sensor data from your…
IntroductionGoogle Firebase Realtime Database is a cloud-hosted NoSQL database that syncs data in real time across all clients. Paired with…
IntroductionThe PIR (Passive Infrared) motion sensor detects movement by sensing changes in infrared radiation emitted by warm objects like humans…
IntroductionServo motors are essential for robotics and automation. Unlike regular DC motors, a servo motor can be commanded to rotate…
IntroductionOTA (Over-The-Air) updates allow you to upload new firmware to your ESP32 over Wi-Fi, without physically connecting a USB cable.…
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…