IntroductionThe ESP8266 NodeMCU is one of the most popular Wi-Fi microcontrollers ever made. In this tutorial, we build a web…
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.
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…
Introduction to Arduino Bluetooth Home Automation Welcome to CircuitOfThings — your hub for DIY electronics! ⚡In this guide, you’ll build…
Introduction Indoor air quality has become a significant concern, especially in the wake of increased awareness about health and environmental…
Introduction Choosing the right microcontroller is critical for any IoT project. In 2025, two popular options continue to dominate the…
Monitoring environmental conditions like temperature and humidity is a key component of many IoT projects. In this tutorial, we’ll walk…