This battery holder connects 3 AAA batteries together in series for powering all kinds of projects. We spec'd these out because the box is slim, and 3 AAA's add up to about 3.3-4.5V, a very similar range to Lithium Ion/polymer (Li-Ion) batteries and have an on-off switch. That makes them ideal for use with 3.3V projects that have a 2-pin JST connector meant for one of our Li-Ion/Poly batteries. (Of course, you can't recharge them...

Connect this to that without soldering using these handy mini alligator clip test leads. 15" cables with alligator clip on each end, color coded. You get 12 pieces in 6 colors. Strong and grippy, these always come in handy! We often use these in conjunction with a multimeter so we don't have to hold the probes in place. Compared to our Large alligator clip set, these clips are smaller and 'pointier' 12 piece set, color coded...

This here is your standard A to micro-B USB cable, for USB 1.1 or 2.0. Perfect for connecting a PC to your Metro, Feather, Raspberry Pi or other dev-board or microcontroller Approximately 3 feet / 1 meter long

Connect this to that without soldering using these handy mini alligator clip test leads. Approximately 4.5" overall cables with alligator clip on each end, color coded. You get 12 pieces in 6 colors. Strong and grippy, these always come in handy! We often use these in conjunction with a multimeter so we don't have to hold the probes in place. Compared to our Large alligator clip set, these clips are smaller and 'pointier'. These...

We've got nice cases for many of our beloved boards, but the Circuit Playground Express and Circuit Playground Bluefruit has been left out of couture enclosure game. Enter Ada-friend Mike Doell to the rescue! This minimal but elegant acrylic case will turn your board into an electronic snowflake. The enclosure is designed to snap together securely with no tools required. You can still press all the buttons and slide the switch...

For bread-boarding with unusual non-header-friendly surfaces, these cables will be your best friends! No longer will you have long strands of alligator clips that are grabbing little wires. These compact jumper cables have a premium male header on one end, and a grippy mini alligator clip on the other. Grab onto your Flora, Circuit Playground, micro:bit, Gemma, or even a banana, and plug it into a breadboard for prototyping joy! You get 12...

You have a Circuit Playground Express, and want to connect some wires to it for adding LEDs or sensors or speakers? You can use our nice alligator clips, but they are a little bulky. If you aren't quite ready to solder to your Playground, try this simple but effective bolt kit. In this kit comes: 6 x M3 5mm machine steel screws6 x M3 zinc-plated steel hex nuts  Using them is simple! Put the screw through the large alligator pads on your...

Extend and expand your Circuit Playground projects with a bolt on TFT Gizmo that lets you add a lovely color display in a sturdy and reliable fashion. This PCB looks just like a round TFT breakout but has permanently affixed M3 standoffs that act as mechanical and electrical connections. Once attached you'll get a 1.54" 240x240 IPS display with backlight control, two 3-pin STEMMA connectors for attaching NeoPixel strips or servos, and a...

Connect this to that without soldering using these small alligator clip test leads. 18" long cables with color-coded alligator clips on both ends. You get 6 pieces in 6 unique colors. Strong and grippy, these always come in handy! We often use these in conjunction with a multimeter so we don't have to hold the probes in place.  Compared to our large alligator clip set, these clips are smaller and 'pointier' 6 piece...

Extend and expand your Circuit Playground projects with a bolt on Perma-Proto that lets you connect solderable circuits in a sturdy and reliable fashion. This PCB looks just like a solderless breadboard but has permanently affixed M3 standoffs that act as mechanical and electrical connections. Solder to the gold-plated traces to create your custom invention! Each pad of the Circuit Playground has a large oval pad you can connect to, and in the...

Extend and expand your Circuit Playground projects with a bolt on E-Ink Gizmo that lets you add a lovely tri-color e-Ink display in a sturdy and reliable fashion. This PCB looks just like a round E-Ink breakout but has permanently affixed M3 standoffs that act as mechanical and electrical connections. Chances are you've seen one of those new-fangled 'e-readers' like the Kindle or Nook. They have gigantic electronic paper...

You have a Circuit Playground Express, but you need to mount it to your charming cardboard robot friend, eh? Not so easy if you don't have a set of standoffs!  In this kit comes: 6 x M3 12mm brass hexagonal standoffs12 x M3 7mm machine screws If you bought a Crickit for Circuit Playground, this kit is already included - we're offering it in case you've designed your own PCB you want to bolt onto! p.s. Works great with...

Connect this to that without soldering using these handy alligator clip test leads. 20" cables with alligator clip on each end, color coded. You get 10 pieces in 5 colors. Strong and grippy, these always come in handy! We often use these in conjunction with a multimeter so we don't have to hold the probes in place. Compared to our small alligator clip set, these clips are longer (1.5" long) 10 piece set, color coded vinyl covered...