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  1. Ashish Adhikari

    How I Made a Mortal Kombat Trophy With a Breathing LED!

    This project features a custom 3D-printed 'Mortal Kombat' trophy shell paired with a basic NE555 timer circuit in 'astable mode', producing a smooth 'breathing' LED effect—mimicking the gentle pulse of a living light. Watch this video for detailed step by step instructions on how to build...
  2. Ashish Adhikari

    Rechargeable 3D Printed Humidifier

    Humidifiers add moisture to the air. They can help people with dry skin, allergies, and respiratory problems. They may also help in preventing influenza and reduce snoring. I bought this AU$2 USB Mini Humidifier DIY Kit from AliExpress and went ahead and created a cute little 3D container for...
  3. Ashish Adhikari

    4x4x4 PCB LED CUBE

    Bring life to your home with this enchanting 4x4x4 LED cube. From static to flashing, chasing, or fading this cube can be programmed to display many different types of 3D LED transitions. This customizable PCB LED cube is super easy to make and fun to have in your home. Go ahead and create a...
  4. Ashish Adhikari

    Destiny Internet Ghost - Internet Notifier

    Destiny Internet Ghost - Internet Notifier The Internet has changed the way we live our lives. From communication, education, banking, entertainment and shopping, the Internet has had a profound impact on our world. Gone are the days when the pen was the most important tool in this world...
  5. Ashish Adhikari

    Liquid Level Indicator Using ULN2003

    A water level indicator detects and indicates the level of water in an overhead tank and relays the information back to a control panel to indicate whether the tank has a high or low water level. In this tutorial, I am going to use the ULN2003 IC to create a simple, inexpensive water level...
  6. Ashish Adhikari

    All About IC UNL2003

    The UNL2003 IC contains 7 High Voltage, High Current NPN Darlington Transistor Arrays each rated at 50V, 500mA in a 16-pin DIP package. You can connect the IC directly to a digital logic (like Arduino or Raspberry Pi, TTL or 5V CMOS device) without an external dropping resistor. This IC features...
  7. Ashish Adhikari

    NodeMCU Based: 3D Printed Indoor Gauge Thermometer

    Had some time this weekend and a desire to create something new and interesting, so went ahead and created an Arduino/NodeMCU based indoor dial thermometer. This device displays the temperature in degree centigrade on a D-Shaped Gauge as well as on a 7-Segment display. In addition to that, it...
  8. Ashish Adhikari

    3D Printed Rechargeable Gothic Lantern

    A Gothic Lantern is a captivating piece of lighting that brings the allure of the Victorian Era into your home. The lantern is adorned with ornate top and bottom ornaments, reminiscent of the Gothic style that was prevalent during the Victorian Era. My curiosity to create something new and...
  9. Ashish Adhikari

    555 Adjustable Delay On Off Timer Circuit

    The 555 timer IC is an integrated circuit (IC) that is used in a variety of timer, delay, pulse generator and oscillator circuits. In this tutorial, I am going to show you guys how to make an "Adjustable Delay Timer Circuit" using the 555 timer IC. This circuit can automatically turn on/off any...
  10. Ashish Adhikari

    3D Printed Arduino Halloween Décor

    When the full moon is shining and the wolves are howling, it's time for Halloween's spooky spectacle. The snickering grins of jack-o'-lanterns glow from lit porches. Kids skip down the block in spooky costumes, carrying bags full of candy and shouting "Trick or Treat!". The Nightmare Before...
  11. Ashish Adhikari

    All About RCWL-0516 Microwave Radar Motion Sensor

    Proximity sensing is a very common application in electronics. There are several ways to accomplish this. The most common way is by using a PIR sensor. PIR Sensor senses the change in ambient infrared radiation caused by warm bodies. I have already covered this in my Tutorial No. 5: "PIR Sensor...
  12. Ashish Adhikari

    Transformers PCB BADGE

      It's been a while, the Autobots have appeared on the silver screen. Finally they are returning to the big screen in their upcoming Transformers movie "Rise of the Beasts". This inspired me in making a PCB Badge to complement my enthusiasm and love towards the Autobots. In this tutorial, I...
  13. Ashish Adhikari

    LED Fader Using 555 Timer IC

    Wanted to generate a LED fading effect (fade-in and fade-out) for my upcoming video tutorial using the 555 timer IC. I already have a video where I used LM358 Dual Operational Amplifier IC and another one with Arduino to generate the LED fading effect.   YouTube, is full of video showing...
  14. Ashish Adhikari

    In this tutorial, I am going to show you guys how to create this Arduino based touchless concrete clock.

    When you mix creativity with electronics, it becomes a masterpiece. Producing something original and worthwhile leads to the creation of a number of great new useful household products. In this video, I am going to show you guys how to create this Arduino based touchless concrete clock...
  15. Ashish Adhikari

    DIY - PCB Christmas Forest

    Created a small "PCB Christmas Forest" which is going to light up my study table this Christmas. In this video, I am going to show you guys how to design these PCBs and assemble them to create a small PCB Christmas Forest.   Designing The PCBs Sorting Out Images To...
  16. 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...
  17. 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...
  18. 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...
  19. 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...
  20. 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...
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