Adafruit

US$1.67
This power jack is designed to fit 2.1mm power plugs snugly and securely. Perfect for adding a power connector to your project. We went for the more expensive "thin pin" type which snap into breadboards or perfboards.
In stock
+
Add to wish list

US$5.17

That new Raspberry Pi® Model B+ computer you just got has a row of 2x20 pin headers soldered on - those are the GPIO (general purpose input/output) pins and for those of us who like to hack electronics they are where the real fun is. By programming the Pi, you can twiddle those pins high or low, send and receive I2C and SPI data, and access the 3V and 5V power rails. This cable is not compatible with the Raspberry Pi Model B or Model A! If you want to bridge those contacts out onto another PCB, you'll want this cable! It's 6" long and has 40 socket & wire sets. Pin #1 is marked with a white wire.

In stock
+
Add to wish list

US$10.42
The IS31FL3731 will let you get back to that classic LED matrix look, with a nice upgrade! This I2C LED driver chip has the ability to PWM each individual LED in a 16x9 grid so you can have beautiful LED lighting effects, without a lot of pin twiddling. Simply tell the chip which LED on the grid you want lit, and what brightness and it's all taken care of for you.
In stock
+
Add to wish list

US$34.92
The LEDs are individually addressable, so you can use it to display anything in a 9 x 14 grid. Scroll text, play games, display images, or anything else you want to do. This kit you will need to assembled/ solder it together.
In stock
+
Add to wish list

US$3.93
This is great in conjunction with any 32-pin IDC cables.  It comes in two parts, a 'pin-through' socket and a male header. The socket straddles the center of a breadboard or Perma-Proto and then header plugs into the top of the socket.
In stock
+
Add to wish list

US$8.67

Wow that's a tiny GPS antenna! This passive antenna is only 9mm x 9mm x 6.5mm in size, with a 50mm long uFL cable. Great for when you want to keep things small. Comes with a standard uFL connector on the end.

In stock
+
Add to wish list

US$1.67
Make your own USB connections without slicing apart a USB cable and soldering those thin wires inside. These DIY "USB shells" are available in USB A plug, micro B, and USB A socket. 
In stock
+
Add to wish list

US$2.63
You have some electrons over here, and you want them over there but you don't want the electrons from over there to be able to come over here? That's what a diode is for, these are directional current valves and have the benefit of being waaay smaller than vacuum tubes. 
In stock
+
Add to wish list

US$8.67
Each button is 10mm x 10mm square and 10mm tall. There is 5mm of grid spacing between the buttons. You can 'tile' the button pads edge-to-edge and they'll grid up correctly. You can also cut the pads down if you like, the silicone is very soft.
In stock
+
Add to wish list

US$13.92
This is a prototype pre-drilled printed circuit board and has copper holes designed for any projects.
In stock
+
Add to wish list

US$38.50

Adding quality audio to an electronic project is surprisingly difficult. Here is a shield for Arduinos that solves this problem. It can play up to 22KHz, 12bit uncompressed audio files of any length. It's low cost, available as an easy-to-make kit.

Delivery within 2-3 weeks
+
Add to wish list

US$2.23
Make your own USB connections without slicing apart a USB cable and soldering those thin wires inside. This is the 'slim' version of the DIY MicroB Male connector. It's a little more elegant because instead of snapping two pieces together the connector press-fits into the overmolding for a modern look.
In stock
+
Add to wish list

US$5.17
This 3" diameter speaker cone is the perfect addition to any audio project where you need an 8 ohm impedance and 1W or less of power. We particularly like this cone as it has 4 handy mounting tabs 60mm apart.
In stock
+
Add to wish list

US$6.92
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!
In stock
+
Add to wish list

US$17.42
We picked up this box because we like the machinable ABS plastic body and tough clear polycarbonate cover, the built in weatherproof gasket seal, and the easy-open screws that can be taken apart as many times as you wish without worrying about cracking or stripping. 
In stock
+
Add to wish list