This prototyping shield is the best out there (well, we think so, at least), and now is even better with Version R3 – updated for the most compatibility with just about all the Arduinos! It works with UNO, Mega, Leonardo, NG, Diecimila, Duemilanove, and compatible Arduinos. Yun’s and Arduino Ethernets have a chunky Ethernet jack that gets in the way of stacking, you can use the stacking headers included and it will work, just doesn’t sit nice and flat.
Check out these awesome specifications:
It has a nice standard 0.1"x0.1" prototying grid with big pads
Comes with Stacking headers and plain header, choose whichever you want when soldering together
A IC pattern for adding DIP ICs up to 20 pins
Power rails down the middle and sides
A reset button and an extra general use button
2 3mm general use LEDs, red and green, as well as 2 matching resistors
A pass-thru ICSP stacking header so you can stack any kind of shield on top, and/or use an AVR programmer
A surface-mount chip area for up to 14 SOIC size parts
Compatible with tiny breadboards
Every pin is brought out!
Gold plated pads
2 x 0.1uF capacitors on either side for extra power stability
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Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.