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  1. Ashish Adhikari

    All About TM1637

    Intro In my hand is a 4-Digit 7-Segment display module. The heart of this module is an inexpensive Serial LED Driver from Titan Micro Electronics called the TM1637.   In this tutorial, I am going to show you guys how to control the TM1637 4-Digit 7-Segment displays using an Arduino. If you...
  2. Ashish Adhikari

    IR Remote Tester and Decoder

    Intro What do you generally do when your remote controls starts playing up? Do you generally use a multimeter and check the voltage and current produced by the battery? Or do you point the remote control to a digital camera and try to visualize the infrared light?  In this...
  3. Ashish Adhikari

    How to Make Walkie Talkie Using Arduino

    Intro Walkie-talkie using Arduino, humm.. sounds interesting isn't it? Alright, lets spend some time today and design and understand this fairly simple circuit, and lets find out how our expectations are challenged by the reality.     Story     While compiling data for my tutorial...
  4. Ashish Adhikari

    Police Car Led Effect Using 555 Timer IC

    Intro My 5-year old son asked me to create a Police Car like flashing light that he can put on top of his nerf-gun, while playing around with his mates. No worries mate, sounds like a plan to me. Bang, weekend sorted.   In this tutorial I am going to create a Police Light themed LED...
  5. Ashish Adhikari

    Adjustable Single/Dual LED Flasher Using 555 Timer IC

      The 555 timer IC is an integrated circuit that is used in a variety of timer circuits, pulse generators and oscillator applications. The heart of the tutorial is the 555 timer IC that is wired as an astable multivibrator.   In this tutorial, I'll first blink "an LED" using the positive...
  6. Ashish Adhikari

    All About nRF24L01 Modules

      In my last tutorial I created a NodeMCU based Duino Coin Miner. It is an awesome little miner that sits on my desk and mines few cents a day.  However, adding these miners to my home network choked my WiFi router. Home Appliances and Smart Devices connected to the router constantly...
  7. Ashish Adhikari

    Crypto Mining using NodeMCU

    Crypto Mining using microcontrollers, wait what!!! Are you serious? How? Believe it or not, the rig you see onscreen actually mines a crypto currency called DUINO-Coin (ᕲ) or DUCO.  The total cost of this rig is only $35. Now, if you believe me! then, grab yourself a cup of coffee, sit back and...
  8. Ashish Adhikari

    Peg Box with Temperature and Humidity Monitor

    In my last tutorial I created a Weather Station using Arduino and NodeMCU using DHT11 or DHT22 temperature and humidity sensor and displayed it using an OLED Display. In this tutorial, I am going create a Peg-Box using the same board but with a little bit of twist. In this setup, I am going to...
  9. Ashish Adhikari

    Cute Little Valentine's Day Gift

    It’s almost Valentine’s Day. This year, instead of giving her a rose bouquet, I wanted to express my love by gifting her an electronic breathing heart. This is yet another "cheap DIY kit" intended for educational purpose. There are a few variations of the breathing LED projects with similar...
  10. Ashish Adhikari

    Touchless Covid Free Electronic Dice Using Arduino

    Sure mate :)
  11. Ashish Adhikari

    Getting Started With Raspberry Pi Pico

      Couple of months ago, I bought a "Raspberry Pi Pico" to get some hands-on experience of it and to create some amazing projects using it. But since then, it has just been sitting on my desk, collecting dust. Today after a very long wait, I finally have decided to create a short video...
  12. Ashish Adhikari

    Internet Hardware WatchDog using NodeMCU

      I love mining and I truly believe that blockchain and digital currencies will one day change the world. Cryptocurrency has played a significant role in my life and has made me a morning person, ha ha.  Miners require 24 x 7 access to the Internet. Recently, I went on a short business trip...
  13. Ashish Adhikari

    DIY - NodeMCU Development Board

      If you have ever programmed a NodeMCU, then I bet you know the pain you have to go through while connecting sensors to NodeMCU on a breadboard. I looked for various solution on the web and found "NodeMCU Development Boards" for around $6 to $7. Well, I wasn't ready to spend that much for a...
  14. Ashish Adhikari

    Touchless Covid Free Electronic Dice Using Arduino

      Created a touchless Covid Free Electronic Dice using Arduino to play some board games with my son. My new project is an amazing way of giving our younger generation the taste of board games while staying COVID free.   Total cost: AU$12 Time taken: 4hrs   Components Required  ...
  15. Ashish Adhikari

    Weather Station Using Arduino and NodeMCU

      In this tutorial I am going to show you guys how to make an Arduino or NodeMCU based Weather Station using DHT11 or DHT22 temperature and humidity sensor and display it using an OLED Display.      DHT11 vs DHT22   The DHT11 and DHT22 are both low-cost very basic and slow...
  16. Ashish Adhikari

    555 Pulse Generator Module, How it Works

        The 555 timer IC is an integrated circuit that is used in a variety of timer circuits, pulse generators and oscillator applications. The heart of the module is the 555 timer IC that is wired as an astable multivibrator, generating pulses from about 4Hz to 1.3Khz. This circuit can be...
  17. Ashish Adhikari

    Touchless Multifunctional Bedside Lamp With Digital Clock

      Whether you prefer to unwind the evening with a good book, play games on your phone, or wanna have some cozy time with your partner, the right bedside lighting can make a lot of difference. In this project, I am going to make a touchless multipurpose bedside lamp, which will also include a...
  18. Ashish Adhikari

    LED Fader - With or Without Arduino

      Have an awesome project in mind using some LEDs. In that project I will be using some LED Fading Effect and few LED Chaser Circuits. But before jumping onto that, I thought I should create a short tutorial and show you guys how to fade a LED with or without an Arduino automatically or manually...
  19. Ashish Adhikari

    LED Chaser Circuits Using IC4017 and Arduino

        A Chaser Circuit consists of a clocked IC or other electronic unit like an Arduino that drives an array of LEDs in such a way that individual LEDs (or small groups of LEDs) turn on and off in a predetermined and repeating sequence, thus producing a visually attractive display in...
  20. Ashish Adhikari

    Arduino Christmas Village

      Trying to explain dialup to a pre-teen will evoke the same wild-eyed bewilderment as “a dinosaur was as-big-as this house”. We can’t go off what our parents did because two tin cans connected by a string isn’t really the same these days and probably it would look like a piece of junk for...
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