Adafruit Learning System

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TTL Serial Camera

This guide is for our new TTL serial camera module with NTSC video output. These modules are a nice addition to a microcontroller project when you want to take a photo or control a video stream. The modules have a few features built in, such as the ability to change the brightness/saturation/hue of images, auto-contrast and auto-brightness adjustment, and motion detection.

TMP36 Temperature Sensor

Reading temperatures to 0.1 degree precision!

An analog temperature sensor is pretty easy to explain, its a chip that tells you what the ambient temperature is. This guide will show you how an analog temperature sensor works, how to wire one up, and some project examples.

PIR Motion Sensor

Pyroelectric ("Passive") InfraRed Sensors

PIR sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. They are small, inexpensive, low-power, easy to use and don't wear out. This guide will show you how they work, how to use them, and give you some project examples.

IR Sensor

Make remote controls and listeners

IR detectors are little microchips with a photocell that are tuned to listen to infrared light. They are almost always used for remote control detection - every TV and DVD player has one of these in the front to listen for the IR signal from the clicker. In this guide we will explain how IR sensors work, how to pull IR codes out of a remote control, and show you how to wire them up to a microcontroller.

DHTxx Sensors

Basic temperature & humidity sensors

This guide covers the low cost DHT temperature & humidity sensors. These sensors are very basic and slow, but are great for hobbyists who want to do some basic data logging.

Monochrome OLED Breakouts

Using our small mono-OLED displays

This is a quick tutorial for our 128x64 and 128x32 pixel monochrome OLED displays. These displays are small, only about 1" diameter, but very readable due to the high contrast of an OLED display. Each OLED display is made of 128x64 or 128x32 individual white OLEDs, each one is turned on or off by the controller chip. Because the display makes its own light, no backlight is required. This reduces the power required to run the OLED and is why the display has such high contrast; we really like this miniature display for its crispness!

Character LCDs

Wiring up a character LCD to an Arduino

We sell tons of lovely character LCDs for use with Arduino, they are extremely common and a fast way to have your project show status messages. This tutorial will show how you can easily connect a character LCD, either 16x2 or 20x4.

Analog Inputs for Raspberry Pi Using the MCP3008

Convert analog inputs to digital and control audio volume

by Michael Sklar

Teaching the raspberry pi how to read analog inputs is easier than you think. The Pi does not include a hardware analog to digital converter, but a external chip can be used along with some bit banged SPI code in python to control read external analog devies such as (but not limited to): - potentiometer - photocell - force sensitive resistor ( fsr ) - temperature sensor

Adafruit Ultimate GPS

One GPS to rule them all and in the darkness find them!

We carry a few different GPS modules here in the Adafruit shop, but none that satisfied our every desire - that's why we designed this little GPS breakout board. We believe this is the Ultimate GPS module, so we named it that. It's got everything you want and more. This guide will teach you how to wire it up to a computer or an Arduino, and how to use it.

Adafruit Motor Shield

Control servos, steppers and DC motors with an Arduino!

Arduino is a great starting point for electronics, and with a motor shield it can also be a nice tidy platform for robotics and mechatronics. Here is a design for a full-featured motor shield that will be able to power many simple to medium-complexity projects. Build the kit, and learn how to use it with these detailed instructions.

Adafruit Guide To Excellent Soldering

Solder at peak performance!

A lovely illustrated guide to soldering and identifying & solving common soldering problems

Arduino Lesson 3. RGB LEDs

Learn Arduino, Lesson 3. RGB LEDs

This is Lesson 3 in the Learn Arduino Adafruit series. In this lesson, you will learn how to use a RGB LED with an Arduino.

Arduino Lesson 13. DC Motors

Learn Arduino, Lesson 13. DC Motors

This is Lesson 13 in the Learn Arduino Adafruit series. In this lesson, you will learn how to control a small DC motor using an Arduino and a transistor.

Arduino Lesson 16. Stepper Motors

Learn Arduino, Lesson 16. Stepper Motors

In this lesson you will learn how to control a stepper motor using your Arduino and the same L293D motor control chip that you used with the DC motor in lesson 15.

RGB LED Strips

Glowy goodness!

We love some good LED blinking as much as the next person but after years of LED-soldering we need something cooler to get us excited. Sure there are RGB LEDs and those are fun too but what comes after that? Well, we have the answer: LED Strips! These are flexible circuit boards with full color LEDs soldered on. They take a lot of LED-wiring-drudgery out of decorating a room, car, bicycle, costume, etc. Here is a quick tutorial on how to get an LED strip working with an Arduino.

Adafruit's Raspberry Pi Lesson 1. Preparing an SD Card for your Raspberry Pi

This lesson shows you how to create an SD card for your Raspberry Pi.

Adafruit's Raspberry Pi Lesson 3. Network Setup

Learn how to connect to the Internet wirelessly or with Ethernet

In this lesson, you will learn how to connect to the Internet wirelessly and with an Ethernet cable and also find the IP address of your Raspberry Pi

32x16 and 32x32 RGB LED Matrix

HUNDREDS of pixels of eye-blasting LED glory!

by Phillip Burgess

Bring a little bit of Times Square into your home with our RGB LED matrix panels. These panels are normally used to make video walls — here in New York we see them on the sides of buses and on bus stops — to display animations or short video clips. We thought they looked really cool so we picked up a few boxes from the factory. Learn how to get these LED matrices up and running with an Arduino.

Adafruit's Raspberry Pi Lesson 4. GPIO Setup

Learn how to setup your Pi for Hacking Electronics

In this tutorial, you are not actually build anything, but you will learn how to configure your Raspberry Pi and install useful libraries ready to start attaching some external electronics to it.

Adafruit's Raspberry Pi Lesson 7. Remote Control with VNC

Work on your Raspberry Pi graphically, from another computer

Arduino Tips, Tricks, and Techniques

Get the most out of your Arduino

Here is a growing collection of tips, tricks, and techniques for the Arduino.

Adafruit's Raspberry Pi Lesson 11. DS18B20 Temperature Sensing

Measure temperature with your Raspberry Pi using the DS18B20

In this lesson, you will learn how to use a DS18B20 with the Raspberry Pi to take temperature readings. Since the Raspberry Pi has no ADC (Analog to Digital Converter), it cannot directly use an analog temperature sensor like the TMP36, making the DS18B20 a good choice for temperature sensing.

DS1307 Real Time Clock Breakout Board Kit

Real time clock mini-breakout board

by Tyler Cooper

This is a great battery-backed real time clock (RTC) that allows your microcontroller project to keep track of time even if it is reprogrammed, or if the power is lost. Perfect for datalogging, clock-building, time stamping, timers and alarms, etc. The DS1307 is the most popular RTC, and works best with 5V-based chips such as the Arduino.

All About Arduino Libraries

How to install and use Arduino Libraries

This guide takes you step-by-step through the process of installing Arduino libraries on Windows, Mac OSX and Linux platforms.

Minty Boost

Small battery-powered USB charger

This project details a small & simple, but very powerful USB charger for your mp3 player, camera, cell phone, and just about any other gadget you can plug into a USB port to charge!

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