Explore the world of hardware engineering, robotics, and embedded systems development. This section provides deep-dive tutorials on microcontrollers (Arduino, ESP32, STM32), single-board computers (Raspberry Pi, NVIDIA Jetson), and industrial automation. From custom PCB design and circuit prototyping to advanced robotics programming and IoT integration, we provide technical resources designed for engineers, makers, and students. Learn how to build, program, and scale smart hardware solutions using industry-standard tools and frameworks.
Compare the 10 best operating systems for Raspberry Pi in 2026. Includes Raspberry Pi OS, Ubuntu, LibreELEC, RetroPie & more. Find the perfect OS for your project with our comparison table.
Ubidots – Arduino Communication using MQTT In this post, I will show you how you can use MQTT Protocol to fetch or push data, to and from the Ubidots Cloud and Arduino Nano 33 IOT. IOT and MQTT The so called Internet of Things is creating a massive machine-to-machine network so that all of the…
What is MQTT? In this post, I’m going to tell you what MQTT is, how it can be used for IOT Applications and how to fetch data from Ubidots cloud using MQTT protocol. MQTT stands for Message Queuing Telemetry Transport. MQTT is an easy to use lightweight protocol which can be used for fetching or…
Arduino IR Remote Hack Hey guys, welcome back to RootSaid. How about hacking an IR Remote Controller? In this post, I will show you how you can hack an IR Remote Controller and create a device using Arduino that will act as an IR Remote Controller. I will explain the circuit, explain the code and…
5V – 3.3V Logic Level Converter IC for Arduino and Raspberry Pi Hey Guys welcome back to RootSaid. In this Post, I will show you how you can make your own 5V to 3.3V logic converter for connecting 5V sensors to new Arduino Boards and Raspberry Pi. Why do we need a Logic Level Converter…
Hey guys, welcome back to RootSaid. In the previous post, I showed you how you can program an Arduino board online using web editor. In this post I am gonna show you how you can set up a board with Arduino IOT Cloud and use Amazon Alexa to control an LED. Arduino IOT Cloud with…
A few weeks back we published a tutorial “Home Automation using Raspberry Pi” in rootsaid.com which was well received among hobbyists and college students. Then one of our members came up with an Arduino Home Automation system using NodeMCU. Arduino Home Automation System Here we will be showing you how to build an Arduino Home Automation System that can control electrical…
Introduction Hey guys, I am back with another cool Robot chassis from BangGood. Hope you have gone through our previous projects – Spinel Crux V1 – The Gesture Controlled Robot, Spinel Crux L2 – Arduino Pick and Place Robot with Robotic Arms and The Badland Brawler which we published last month. Looks cool with under…
Recently, after my OS was reinstalled installed the latest version of Arduino IDE to my Win 10 laptop. I opened a sample sketch, the blinky, connected my Arduino Nano, selected the right port and board and clicked on upload. The code was compiled in 3 seconds, but it was stuck in the upload part. Arduino…
Well, guys this is one of the project that never gets old. This was the first thing I did when I started learning about Arduino. An Arduino Line Follower Robot – A Line Follower Robot Using Arduino UNO and IR Sensor, which follows a line without user interaction. A small autonomous robot which will “see”…
Hey guys, welcome back. In my previous post, I explained what an H Bridge Circuit is, L293D motor driver IC, piggybacking L293D Motor driver IC for driving high current motor drivers and how you can design and make your own L293D motor Driver Board, that can control upto 4 high current DC motors independently and…
Hey guys, welcome back, In the previous post, I told you how an IR sensor works, how to make a line follower using an IR sensor and to make a Simple DIY Burglar Alarm using an IR sensor and a Buzzer without using any micro controller or complicated coding. In this Post, I will show…