Adafruit Learning System

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FORCE & FLEX

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Adafruit VEML6070 UV Sensor Breakout

Read UV light intensity over I2C

This little sensor is a great way to add UV light sensing to any microcontroller project. The VEML6070 from Vishay has a true UV A light sensor and an I2C-controlled ADC that will take readings and integrate them for you over ~60ms to 500ms.

Circuit Playground Bike Glove

Turning left? Turning right? Let Circuit Playground help with blinking lights!

by Carter Nelson

Create a turn direction indicator for bike riding by sewing a Circuit Playground to a bike glove. The accelerometer is used to determine hand orientation and provide an appropriate turning signal indication using the NeoPixels.

Calibrating Sensors

Get peak performance from all your sensors.

Most modern sensors perform quite well right out-of-the-box. But the sensor is only part of the measurement system. For best accuracy in critical applications, you will want to calibrate.

ReBoots Animated LED Boot Laces

These boots are made for dancing, and that's just what they'll do

by Erin St Blaine

Neopixels and light pipe animate your boot laces and make you jump out from the crowd. The laces animate smoothly while you walk around, and go crazy when you stomp your feet to the beat.

Flora MIDI Drum Glove

Finger Drumming Wearable Electronics

Use piezos as tap sensors with FLORA to send MIDI commands to your favorite controller or music software!

CuteCircuit Twirkle Shirt Teardown

Inside the motion-activated light-up t-shirt

We took apart the first ready-to-wear LED t-shirt to see what makes it tick.

ICEdot Teardown

Inside the Bluetooth crash sensor

The ICEdot crash sensor monitors affixes to your bike helmet and monitors for impacts. It pairs with your phones and an online service that can notify your emergency contacts with your location if you get hurt. We wanted to check out the tech that makes this safety wearable perform.

SensoGlove Teardown

Golf-improving wearable, taken apart

Find out what makes the SensoGlove detect squeeze of each finger, datasheets included!

Force Sensitive Resistor (FSR)

Thin sensor that detects physical pressure.

FSRs are sensors that allow you to detect physical pressure, squeezing and weight. They are simple to use and low cost. This guide will show you how to wire an FSR, connect it to your Arduino, and give you some project ideas.

Tilt Sensor

The simple way to detect orientation or inclination

Tilt sensors allow you to detect orientation or inclination. They are small, inexpensive, low-power and easy-to-use. If used properly, they will not wear out. Their simplicitiy makes them popular for toys, gadgets and appliances. This guide will show you how they work, show you how to wire them up, and give you some project ideas.

Basic Resistor Sensor Reading on Raspberry Pi

Reading resistive sensors with RC timing

The best way to read analog sensors on a Pi is to use an external ADC like the MCP3008. But if you don't want to wire up an extra chip and you're OK with low-resolution sensing, you can read many sensors that act like resistors using the RC timing trick!