Overview In today’s world, we have lots of smart devices that can be controlled remotely. Imagine being able to turn on or off your home appliances using your phone or computer, even if you’re far … Read more
Overview The Seedstudio XIAO, powered by the RP2040 microcontroller, has quickly gained popularity in the maker and electronics community due to its affordability, versatility, and robust performance. One of the fascinating aspects of the RP2040 … Read more
Interfacing DHT22 Temperature Sensor with XIAO RP2040
Overview Smoke detectors are crucial devices that play a pivotal role in ensuring the safety of homes and workplaces. They serve as early warning systems, detecting the presence of smoke or potentially harmful gases in … Read more
Smoke Detector using MQ-2 Gas Sensor & XIAO RP2040
Overview In the realm of embedded electronics and IoT (Internet of Things) projects, the ESP32 has emerged as a versatile and powerful microcontroller platform. Its capabilities, coupled with its affordability, have made it a favorite … Read more
How to Use OLED Displays with ESP32 Boards
Overview In today’s digitally connected world, the Internet of Things (IoT) has transformed the way we interact with our surroundings. From smart homes to industrial automation, IoT devices have become an integral part of our … Read more
Controlling AC Fan using ESP32 Web Server
Overview Measuring light intensity is a crucial aspect of various applications, from photography to environmental monitoring. A light meter provides an easy and accurate way to quantify light levels, helping photographers capture perfect shots and … Read more
Light Meter using XIAO RP2040 & OLED SSD1306
Overview In today’s era of technology, the Internet of Things (IoT) has opened the doors to innovative solutions in various fields. One such application is an object counter that utilizes Infrared (IR) sensors in conjunction … Read more
Object Counter using IR Sensor & XIAO RP2040
Overview Earthquakes are scary natural disasters that can cause a lot of damage and danger. Imagine if there was a way to know when an earthquake might happen a little bit before it does. That … Read more
Earthquake Detector & Alarm using XIAO RP2040
Introduction The need for a security system has arisen as a result of rising crime rates. So, Having a security system gives you the safety and security you need to lead a peaceful life, whether it be … Read more
Laser Tripwire Home Alarm System
Overview Voice recording technology has come a long way, and it has become an integral part of various applications, from voice assistants to security systems. If you’re interested in building your own voice recording system, … Read more
Voice Recording with ISD1820 Module and ESP01
The Arduino uses the ATMega328p chip. We can get that in an SMD format (ATMega328p-AU) or the DIP format for trough hole soldering (ATMega328p-PU). But, the chip by itself can’t work. It needs a few … Read more
How to make your own Arduino UNO PCB – ATMega328p
Overview In today’s digital age, the integration of various technologies has led to innovative applications across different domains. One such integration is the combination of YouTube’s vast data resources with the capabilities of microcontrollers like … Read more
YouTube Realtime Data Display on OLED & ESP32
In this tutorial, I will tell you the best way to build a basic Lead Acid Battery Charger Circuit. This circuit utilizes to charge Rechargeable 12V Lead Acid Batteries with a rating in the scope … Read more
How to make a 12 Volt Lead Acid Battery Charger Circuit
Overview In the world of electronics and IoT (Internet of Things), measuring distance is a fundamental task for various applications. Whether you’re building a smart robot, a parking sensor, or monitoring the level of liquid … Read more
Distance Meter using HCSR04 Ultrasonic Sensor & ESP32
Introduction Pulse sensors are used in several projects for athletes, gaming, home appliances, and mobile phone developers where there is a need for reading heart rate data. In this tutorial, I’ll focus on one of … Read more
Heart Rate Pulse Sensor – BPM Meter using OLED & ESP32
Understanding Power Supply Basics 1. Types of Power Supplies    – Linear Power Supply: This supply is thus an analog where transformers reduce voltage and how diodes rectify; easy and stable across outputs but relatively inefficient … Read more