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LPC824 NeoPixel IR Distance Sensor
Drive NeoPixels and a Sharp IR distance sensor with the ARM Cortex M0+ LPC824 MCU
by Kevin Townsend
This guide demonstrates how you can drive NeoPixels and a Sharp IR distance sensor using bare metal C, and the State Configurable Timer (SCT) on the inexpensive ARM Cortex M0+ LPC824 microcontroller.
NXP Precision 9DoF Breakout
Getting up and running (literally?) with our high precision orientation breakout board.
by Kevin Townsend
This learning guide gives you everything you need to get started using out high precision 9DoF breakout board based on NXP's FXOS8700 and FXAS21002 sensors.
Bluefruit nRF52 Feather Learning Guide
Get started now with our most powerful Bluefruit board yet!
by Kevin Townsend
This learning guide will help you get setup and started with the ARM Cortex M4F based nRF52 Bluetooth Low Energy system on chip. You can run your Arduino code directly on the nRF52, and take advantage of the SoC's high performance, without sacrificing ease of use.
Comparing Gyroscope Datasheets
How to read and compare values between gyroscopes
by Kevin Townsend
Interpretting datasheets is fraught with peril in the best of circumstances. Even chips from the same vendor can use varying terminology and units, often in an attempt to hide short-comings in individual devices. Trying to compare chips across vendors adds another layer of complication. We'll help you decipher the key terms around gyroscopes in this learning guide.
AWS IoT and Adafruit WICED Feather
Use your Adafruit WICED Feather to send and receive data with AWS IoT
by Kevin Townsend
This tutorial will show you how to setup your WICED Feather to work with AWS IoT to securely send and receive messages to Amazon's servers.
Introducing the Adafruit WICED Feather WiFi
Get your WiFi projects up and running quickly with the fast and flexible WICED Feather!
by Kevin Townsend
This guide will show you everything you need to know to setup and use the new Adafruit WICED Feather. Easy and complete WiFi access, plus the processing power of a modern ARM Cortex M3 processor, all from the Arduino IDE you know and love.
Introducing the Adafruit Bluefruit LE SPI Friend
All the goodness of Bluefruit LE, now in easy to use SPI
by Kevin Townsend
Need to add Bluetooth Low Energy to your next project, but UART won't work for you? This module brings you all the same functionality as the Bluefruit LE UART Friend using SPI.
Introducing the Adafruit Bluefruit LE UART Friend
Your BLE UART BFF!
by Kevin Townsend
This guide will show you everything you need to get your BLE UART Friend talking to any BLE enabled iOS or Android tablet or phone.
Adafruit BNO055 Absolute Orientation Sensor
Absolute orientation without the Ph.D in digital signal processing!
by Kevin Townsend
The BNO055 is everything you've always wanted for AHRS or orientation data in a single chip. On chip sensor fusion algorithms, quaternion, euler and vector output, and "just works" data output. Stop meddling with mind-numbing fusion algorithms, and start working with movement today!
DIY Google's "Physical Web" UriBeacons with the Bluefruit LE Friend
Using the Bluefruit LE Friend to advertise URIs with Google's Physical Web Project
by Kevin Townsend
This tutorial will show you everything you need to know to turn your Bluefruit LE Friend in a UriBeacon node, advertising UriBeacon data as described in Google's Physical Web project, making any BLE device capable of advertising a unique gateway URL that users can navigate to.
Introducing the Adafruit Bluefruit LE Sniffer
Have a peak under the hood of BLE, sniffing and visualising traffic down to the packet level
by Kevin Townsend
The Bluefruit LE Sniffer allows you to sniff traffic between two Bluetooth Low Energy devices in a passive manner (meaning it isn't involved directly in the connection itself). This mini guide will show you how!
Introducing the Adafruit Bluefruit LE Friend
Your new BLE BFF!
by Kevin Townsend
This guide will show you everything you need to get your BLE Friend talking to any BLE enabled iOS or Android tablet or phone.
KTOWN's Guide to Readable C Code
PLZ RITE GOOD KOD3!
by Kevin Townsend
Internal guidelines on writing readable, maintainable and understandable code in C and C++.
POPULAR
Introduction to Bluetooth Low Energy
A basic overview of key concepts for BLE
by Kevin Townsend
This guide will give you a high level overview of Bluetooth Low Energy, explaining how data is organised and what makes BLE so interesting.
Getting Started with the nRF8001 Bluefruit LE Breakout
Add Bluetooth Low Energy (BLE 4.0) to your project for low power mobile projects
by Kevin Townsend
This guide will help you setup your nRF8001 and show you how you can use it to talk to iOS or Android devices
AHRS for Adafruit's 9-DOF, 10-DOF, LSM9DS0 Breakouts
How to turn Adafruit's 9-DOF, 10-DOF, or LSM9DS0 breakouts into a low cost AHRS (attitude and heading reference system)
by Kevin Townsend
This tutorial will show you how you can make use of various open source utilities and code to turn your 9-DOF, 10-DOF, or LSM9DS0 Adafruit breakout into a heading reference system for drones or other navigation-based projects.
Adafruit 9-DOF IMU Breakout
User's guide for Adafruit's 9-DOF breakout board
by Kevin Townsend
Everything you need to know to get started with Adafruit's 9-DOF (9 degrees of freedom) breakout board. You can use this board to measure orientation, acceleration, and angular velocity using the L3GD20 Gyro and LSM303 Accelerometer/Compass
FEATURED
piBeacon - DIY Beacon with a Raspberry Pi
Turn your Rasperry Pi into a Bluetooth LE Beacon Device
by Kevin Townsend
This learning guide will show you everything you need to know to turn your Raspberry Pi into a "Bluetooth LE (BLE) Beacon" device using our Bluetooth 4.0 Adapter and the open source Bluez stack.
Adafruit 10-DOF IMU Breakout
User's guide for Adafruit's 10-DOF breakout board
by Kevin Townsend
Everything you need to know to get started with Adafruit's 10-DOF (10 degrees of freedom) breakout board. You can use this board to measure altitude, orientation, acceleration, angular velocity using the L3GD20 Gyro, LSM303 Accelerometer/Compass, and BMP180 Altitute & Temperature sensor
Getting Started with the LPC810
A basic getting started guide for the ARM Cortex M0+ based LPC810 MCU
by Kevin Townsend
This guide will show you everything you need to know to get started with the ARM Cortex M0+ based LPC810, including setting your system up for ARM development, writing your first program, and programming the flash on the MCU via the UART bootloader.
FEATURED
KTOWN's Ultimate Creating Parts in Eagle Tutorial
Listen up! KTOWN is going to school you right in EagleCAD!
by Kevin Townsend
Creating parts in Eagle isn't difficult, but you do need to understand a few things about how Eagle organizes things internally. This tutorial will walk you through everything you need to know to start making reliable, manufacturable parts today!
Decompiling .NET Apps
A quick guide on decompiling .NET applications
by Kevin Townsend
Have a lackluster datasheet for your sensor, but a demo app from the vendor that seems to calculate the value you need? If the app is written in .Net (Visual Basic or C#) -- and if it's Windows based, it probably is -- you might be able to decompile the app and find that magic formula you're looking for!
Using the Adafruit Unified Sensor Driver
All the sensor data, normalized!
by Kevin Townsend
Technical overview of Adafruit's new Unified Sensor Driver API, allowing you to access any supported sensor data in a consistent, reliable manner.
Adafruit Ultimate GPS on the Raspberry Pi
Adding GPS tracking to your Pi-based projects
by Kevin Townsend
This tutorial will show you how you can get started quickly with GPS on your Raspberry Pi using Adafruit's Ultimate GPS Breakouts.
MCP230xx GPIO Expander on the Raspberry Pi
Add 8 or 16 extra GPIO pins to your pia via I2C
by Kevin Townsend
Using the MCP230xx GPIO expanders on the Raspberry Pi to add 8 or 16 additional GPIO ports to your board.