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PROJECT
116

Retro Color Organ

By Sara McCaslin

Learn how to create a music-activated LED display with a simple, low-cost circuit. This code-free project uses audio filters to sync LEDs with sound frequencies.

PROJECT
409

Arduino IoT Glass Break Sensor

By Maker.io Staff

Make a DIY home security system with Arduino! Detect window breaks with a piezo sensor, amplify signals, and connect to the IoT Cloud for remote alerts.

BLOG
11,192

How to Use a Phototransistor with an Arduino

By Maker.io Staff

Many applications could use phototransistors, for example, a sunrise alarm clock. Learn how to use a phototransistor to create a Light Activated LED fader?

PROJECT
295

Create an RGB LED Sequencer using an M5Stack Core 2 and an Arduino Uno

By Maker.io Staff

An M5Stack touch screen can provide a quick and easy user interface. Here, we use it with an Arduino Uno to control the sequencing of an RGB LED.

PROJECT
165

Building an Arduino-Based Spectrum Analyzer - The Software

By Maker.io Staff

This last part of the series discusses how the project’s firmware calculates the FFT result from the collected samples and displays it on the LED matrix screens.

PROJECT
103

How to Interface an LED Matrix with the MAX7219

By Maker.io Staff

Create an Arduino-based spectrum analyzer and graphic equalizer to spice up your home sound system using LED matrices and a MAX7219 display controller.

PROJECT
47

Another Ambassador Moment: Building an Arduino Alarm Clock

By Eliot Wachtel

Smartphones might be the most convenient alarm clock option, setting time aside to be away from phones to avoid distraction and allow more time to focus on school assignments can be extremely beneficial.

PROJECT
609

A Simple Square-Wave Function Generator with an Arduino

By Maker.io Staff

Learn how to use the DAC of an Arduino to create a simple function generator capable of producing square, sine, and sawtooth waveforms.

BLOG
1,129

Why and How to Build a 6502 Microprocessor-Based Breadboard Computer

By Clive Maxfield

Engineers like to build, but Nick Bild takes it to the stratosphere. A software engineer by trade, he decided to learn hardware from scratch and within months built his own custom computer based on the 6502.

TUTORIAL
455

Controlling H-Bridges

By Maker.io Staff

Learn how to build an H-bridge to control a DC brushed motor.

TUTORIAL
2,913

How to Control Output Voltage using a PID

By Maker.io Staff

An Introduction to using the PID library on the Arduino platform to control output voltages in a quick responsive manner.

PROJECT
636

Learn to Breadboard

By Maker.io Staff

Breadboarding is an integral part of creating any electronics project