Hans is the 'old man' of the group. He tends to be nervous and is often indecisive. Hans frequently changes his mind, and is a little fidgety (he oscillates) when he's not moving around. He is very meticulous and precise in other ways; Hans does not like to compromise, preferring to be in a steady state until a dramatic change is called for. Hans speaks with the voice of a kindly old man with a Swiss-German accent, though his voice...

Mho has a laid back, passive personality. He likes to do as little work as possible, and prefers to simply let the world happen around him. Mho is kind of a hippy, and is very quiet and gentle. He is best friends with Ruby, the red LED, who shares his idealism, though he's often reluctant to go off with her on her adventures because he thinks they will probably end up in trouble. Mho has sort of a nasally, hippie voice (California accent,...

Cappy is the de facto leader of the group. He is always coming up with crazy schemes. A running joke is that his capacitance value changes depending on his mood. Cappy speaks in a West County English accent (a traditional 'pirate' accent). His catchphrase is "smooth sailing." About Electrolytic Caps: The underlying concept of electrolytic capacitors was discovered in 1886 by Charles Pollk, who received a patent in 1897 for a...

Connie is the co-leader of the group with Cappy. Connie is much more level-headed though, and somewhat of mother figure for the others, particularly Ruby and Billie. She is very thorough, remarkably smart, and has a good heart. She is very dedicated to the others and acts as a balance to the zaniness of Cappy and Ruby. Connie is able to handle Hans' indecision, Ruby's hyperactivity, Billie's soulful blueness and Cappy's...

Ruby is the ingenue of the group, and something of a Pollyanna. She is the youngest, the most talkative, and gets easily excited about everything. Ruby has a lot of energy and she's always ready to go on an adventure. Ruby's wanderlust sometimes gets her in trouble. Her best friend is Mho, the resistor, who shares her idealism without sharing her urgency or naiveté. Ruby speaks with a super excited young girl's voice who talks...

Gus is the smartest member of the group, but also the most coarse. Gus is the closest thing to an engineer in the group: he is pragmatic, realistic and somewhat world-weary, but not a total downer. He will sometimes cut people off mid-sentence because he is impatient, not because he's trying to be mean or rude. Gus will occasionally make pithy observations that shed light on some problem or other. He is sort of an older brother to Ruby. Gus...

Billie doesn't just sing the blues, she lives the blues. Billie has a good heart, but she can be a total downer. She always sees glass as half-empty (even when it's full), and doesn't like to try new things. Billie has a big-sister relationship with Ruby, and admires her enthusiasm. Billie sings and speaks in a rough and breathy alto. Her catchphrase is "it's enough to make a girl feel kinda blue…", typically...

Would you like to learn electronics, with an all-in-one board that has sensors and LEDs built in? Circuit Playground is here - and it's the best way to practice programming on real hardware with no soldering or sewing required! This is the Classic version of Circuit Playground , which comes with an ATmega32u4. It's designed to be used with Arduino IDE and code.org CS Discoveries only. It even comes with Firmata already programmed in, so...

Please note: We're still adding full support for all of the cool sensors to MakeCode/CircuitPython/Arduino. We recommend using the CPX with MakeCode only at this time (it does work very well though!) In particular Arduino support is not ready yet, and we're still working on full CircuitPython support. There will be many drastic changes in Arduino/CircuitPython APIs and functionality, so it is not ready for use with students or beginners...

Please note: This initial run of CPX is for developers and makers only! We're still adding full support for all of the cool sensors to MakeCode/CircuitPython/Arduino. There will be many drastic changes in APIs and functionality, so it is not ready for use with students or beginners: here be dragons! It's the Circuit Playground Express Base Kit!  It provides the few things you'll need to get started with the new Circuit...

Circuit Playground Express  is the next step towards a perfect introduction to electronics and programming. We've taken the original Circuit Playground Classic and made it even better! Not only did we pack even more sensors in, we also made it even easier to program. You can now start your journey with  Microsoft MakeCode  block-based or Javascript programming. Then, you can use the same board to try  CircuitPython , with...

For many years, instructors and teachers have asked us to come up with a better way to teach programming and electronics. We have worked on Circuit Playground for over a year to come up with a board that is powerful, beautiful, fun, and Arduino-compatible! Circuit Playground is a perfect introduction to electronics and programming. It combines an ATmega32u4 microcontroller (just like our popular Flora) with full official Arduino support and...

This little Silver-color Pin with Foam Adhesive is the perfect way to attach any PCB or small component to cloth material.  The adhesive forms a solid but not permanent bond for a strong reliable hold. The pin also has a handy little locking mechanism to keep the pin from unlatching from friction. If you are working with wearables be sure to keep a handful of these around - they pair especially well with the Flora, Gemma, and Circuit...