Content for Project

Sound Spectrum Visualizer with Arduino Nano 33 BLE

“Visualize sound frequencies spectrum with an OLED 128x32 display, Arduino Nano 33 BLE and an electret microphone amplifier (MAX9814). See how a bar graph respond to music and sound in a little OLED display. Lowest frequencies toward the left end …

Tinkercad Robotics for School: Evil Zipline Robot!

“Hello! My name is Mario. Welcome you to a new lesson of “Tinkercad Robotics for School”, where you can learn how to use Tinkercad to create simple and easy fun machines! Today’s challenge: we will create an Evil Zipline …

TinyML Keyword Detection for Controlling RGB Lights

“Train a TensorFlow model to recognize certain keywords and control an RGB light strip using an Arduino Nano 33 BLE Sense. The Premise Machine learning at the edge is extremely useful for creating devices that can accomplish “intelligent” tasks with …

Two Auto-OFF Timer Circuits || 555 IC or Transistor

“The Timer circuit turns ON when connection is given and turns OFF automatically after few seconds, depending on the value of Capacitor used in the circuit. Here, I will show you two different ways to make this circuit using : 1 …

World’s Slimmest NeoPixel LED Matrix

“This is a 8x8 WS2812b NeoPixel LED matrix that is completely flat surface and has the same 1.6mm height as a normal PCB. I always had this idea of what would have happened if we can put the components …

3D Printed Guitar That Lights Up As You Play

“Several years ago I built a CNC router with the express purpose of creating my own guitar. Unfortunately however, I never got around to it. Two years back I was getting into 3D printing in a big way and started …

4-20ma Generator/Tester Using Arduino

“4-20mA generators are available on ebay, but I for one love the DIY part of things and using parts I have laying around. I wanted to test our PLC’s analog inputs to verify our scada readings and to test …

6502 standalone computer

“A minimal 6502 computer that can be programed machine language without PCs I have developed a minimal 6502 computer that can be programed machine language without PCs. The concept is the following three. (1) Minimize the number of peripheral standard …

App Controlled Colour Cloud

“Hi, in this instructable I show you how to build a room lighting from a gravel path grid. The whole thing can be controlled via WLAN with an app. There were some problems with the project. But in the end …

buck50: Test and measurement firmware for “Blue Pill” STM32F103

“buck50 is open-source firmware that turns a “Blue Pill” STM32F103 development board (widely available for approx. US$1.50) into a multi-purpose test and measurement instrument, including: - 8 channel, 6+ MHz logic analyzer - Approx. 5K sample buffer depth - Samples stored …