Adafruit, online at adafruit.com, save money on hot items when shopping on Adafruit when applying our coupons, promo codes during checkout. Trust us, these coupons are good. Make the best of our Adafruit promo codes to get 15% OFF. All discounts are totally free to use. Adafruit Industries, Unique fun DIY electronics and kits : - Tools Gift Certificates Arduino Cables Sensors LEDs Books Breakout Boards Power EL Wire/Tape/Panel Components Displays Wearables BeagleBone Prototyping Raspberry Pi Wireless Young Engineers 3D printing NeoPixels Kits CNC Accessories Software Cosplay/Costuming Halloween Reseller & University Packs Internet of Things - IoT Media Particle Development Boards Batteries ecommerce, open source, shop, online shopping.