This section covers basic electronics tutorials in various electronics domains. If you are an absolute beginner, this section is the starting point to learn the basic electronics concepts. Once you are the done with understanding the basic concepts, head towards the electronics circuits section and try your hands on few circuits.
In this project, we upgraded LiteWing, an ESP32-based development drone by adding a lightweight Bluetooth speaker system to extend its capabilities beyond flight. By adding a simple Bluetooth audio setup, the drone can now deliver real-time announcements, voice messages, or music directly from the air without requiring any additional coding. The entire system works…
Voice control has become an integral part of modern smart home automation. In this tutorial, we build a voice-controlled LED system using the ESP32-S3-BOX-3 development board, combining wake word detection, speech recognition, touch interface, and audio feedback to create an intelligent control system. The code will be based on the factory example provided by…
LiteWing is an open-source ESP32-S3 based drone that offers a flexible platform for experimentation and learning. By default, LiteWing operates using the modified Crazyflie firmware. LiteWing can also be configured using Betaflight, a powerful and widely adopted flight control software used in FPV and racing drones.
In this ESP32…
Over the years, I’ve collected a few Raspberry Pi boards, my trusty Pi 4 and even an older Pi 3 that was gathering dust in a drawer. Instead of letting them sit unused, I decided to give them a new life by turning them into something surprisingly practical: a Raspberry Pi WiFi router with built-in ad-blocking capabilities.
With the…
If you’ve tinkered with Raspberry Pi boards for a while, you probably know the default choice: Raspberry Pi OS. It’s lightweight, optimised, and works flawlessly for most DIY projects. But what if you could install Windows 11 on Raspberry Pi? That's exactly what I accomplished on my Raspberry Pi 4 and later on the Pi 5 and Pi 3.
That’s exactly what I set out…
In the world of flip-flops, the Clocked JK Flip Flop stands out with its outstanding features, such as all usable input states and the ability to be modified to imitate other flip-flops like SR, T, and D. This makes the JK Flip Flop a little better than the others. It's often called a universal flip-flop.
The JK flip-flop's main…
Want to boot your Raspberry Pi from USB instead of unreliable SD cards? If you've used a Raspberry Pi long enough, you've probably faced the dreaded SD card failure. Maybe it corrupted right after a power outage, or maybe it just wore out from thousands of log writes. That's when I finally decided no more SD cards. They're great for getting started with Raspberry Pi, but when you want…
If you've ever worked with a Raspberry Pi, you’ve probably run into that annoying moment when your Raspberry Pi just disappears from the network. You try to SSH into it or access a local web dashboard, but suddenly it's not there. You fire up the terminal and type ping raspberrypi.local, and nothing. It turns out, your router handed the Pi a different IP address this…
Building a DIY drone test rig is essential for safely testing mini-drones without the risk of crashes or component damage. This comprehensive guide shows you how to build a 3D printed drone testing stand that allows complete flight testing in a controlled tabletop environment. This drone test stand was originally built for our LiteWing Drones, but you can use it to test any mini drones.
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Have you ever heard the word isolation, especially in electronics? As you might guess, isolation is a key factor when it comes to optocouplers. Isolation is sometimes mandatory and sometimes an extra feature in circuits. Optocouplers are used in many electronic devices, from mobile electronics to household electronics.
So, in this…
Current transformers play an important role in protecting electrical systems. They are primarily used where a current is too high to measure directly such as power plants, grid stations, etc. These transformers convert high alternating current into a smaller value that can be safely measured. If you want to start with more basics you can also check out our article on…
In the present world of interconnected devices, there is a lot happening in IoT. Tracking assets, monitoring movement, and analyzing routes are some of the most essential tasks, and they have never been easier, at least on the front end. While basic solutions that you can see in prior projects, such as this Arduino Vehicle Tracker using ESP8266 and IoT-Based GPS…
