The basic principle behind a Coil Gun is that a current carrying conductor will induce a magnetic field around it, which was stated by Faraday. To improve the strength of this magnetic field the current carrying conductor is wound in form of a coil. Now, when this coil is powered it produces a magnetic field around it which is strong enough to attract metal (or other Ferro magnetic) pieces a.k.a projectiles into it.
DIY tutorial: https://circuitdigest.com/electronic-circuits/diy-simple-coil-gun
Have you ever thought about a speaker which can be controlled by your voice!!! Yes, Amazon Echo is the one of the most popular voice controlled Speaker, but in competition with it Google Home is also getting popular. Voice assistants becoming more popular as we are heading towards an era of AI based systems. You have heard about Google Assistant, Apple Siri and Amazon Alexa. These all are Voice based AI systems, what makes these different from each other is their ecosystems, and this is where Google Assistant standout the most. Google, Apple and Amazon, all these companies already launched their smart speakers. Google smart speakers are also available in the market. We already covered Raspberry Pi based Amazon Echo, this time we will turn Raspberry Pi into a Google Home Speaker.
I recently purchased the NeoPixel LED strip and was quite impressed by the way it works. The tiny LED’s have an inbuilt driver IC which helps us to control each LED individually and can produce a wide spectrum of colors. Being a garish person who is obsessed with colours I really loved watching these tiny LED’s changing colors so I decided to build something on my own and leave it coloring my bedroom during night times.
“Good morning. It’s 7:00 a.m. The weather in Malibu is 72 degrees with scattered clouds. The surf conditions are fair with waist-to-shoulder high lines. High tide will be at 10:52 a.m”. Every time I hear this voice of Jarvis in the movie Iron Man it sends me chills down my spine. I am sure just like me many would have dreamt of living a life as sophisticated as Tony Stark. But sadly we have not advanced with technology for a miniature Arc reactor or an AI as smart as JARVIS. But it is possible to replace our boring morning alarm clocks with the one that is similar to Jarvis using a Raspberry Pi. At the end of this project, we will create a very basic GUI using which we can set an alarm and when the alarm goes on we will have a voice which tells us the current time and day with some pre-defined text. Sounds cool right!! So let us build one: https://circuitdigest.com/microcontroller-projects/raspberry-pi-based-jarvis-themed-speaking-alarm-clock
Interfacing 3.5 inch Touch Screen TFT LCD with Raspberry Pi
The pi itself has a HDMI output which can be directly connected to a Monitor, but in projects where space is a constrain we need smaller displays. So in this tutorial we will learn how we can interface the popular 3.5 inch Touch Screen TFT LCD screen from waveshare with Raspberry pi. At the end of this tutorial you will have a fully functional LCD display with touch screen on top of your Pi ready to be used for your future projects.
Check out the complete tutorial: https://circuitdigest.com/microcontroller-projects/interfacing-3.5-inch-touchscreen-tft-lcd-with-raspberry-pi
Hi guys, during the last few weeks, I’ve been working on reconnecting with my love for the guitar. Playing the box guitar was how I relax few years back before the saxophone took over. Going back to the guitar, after 3 years of rarely strumming a chord, I discovered amongst other things that I no longer knew how each of the string should sound, to put it in my friend’s words, “My hearing was no longer tuned” and as a result of this, I was not able to tune the guitar without the aid of a keyboard or a mobile app which I later downloaded. The weeks went by till few days ago when the maker in me became motivated and I decided to build an Arduino based Guitar Tuner. In today’s tutorial, I will be sharing how to build your own DIY Arduino Guitar Tuner.
Find here the complete DIY project for Arduino Guitar Tuner: https://circuitdigest.com/microcontroller-projects/arduino-uno-guitar-tuner
Minecraft is one of the most popular game in the world and people are getting additive for this interesting game. You can setup your own Minecraft server and can create your own worlds in the game. For this, you don’t need to spend money on a dedicated PC, it can be easily done with a small, credit card-sized Linux computer Raspberry Pi. If you want to play it on small LAN network with your family and friends then Raspberry is the perfect choice for you. Graphics of this game is not good but still it looks so fascinating to play this game on network with other people.
Setup your own Miinecraft server on your Pi:
A Power supply unit is a very commonly used tool by most engineers during the development stage. I personally use it a lot when experimenting with my circuit designs on Breadboard or to power up a simple module. Most of the digital circuits or embedded circuits have a standard operating voltage of either 5V or 3.3V, so I decided to build a Power supply which can supply 5V/3.3V on the power rails of the breadboard and fits snugly on the breadboard.
Once I started building the self balancing robot, I realized that this bot is a bit of a challenge to build. There are so many options to select from and hence the confusions start right form selecting the motors and remains till tuning PID values. And there are so many things to consider like type of battery, position of battery, wheel grip, type of motor driver, maintaining the CoG (Centre of gravity) and much more.
But let me break it to you, once you build it you will agree that it’s not as hard as it sounds to be. So let’s face it, in this tutorial I will document my experience in building the self balancing robot. You might be an absolute beginner who is just getting started or might have landed up here after a long frustration of not getting your bot to work. This place aims to be your final destination.
Find here the complete DIY instructions with code and circuit: https://circuitdigest.com/microcontroller-projects/arduino-based-self-balancing-robot