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This 2.2"/57mm long antenna has 2dBi of gain and 50Ω impedance so it will work fantastically with just about any 850/900/1800/1900/2100 wireless re...

Put a temperature meter (digital thermometer) anywhere with this very handy display. This panel meter displays the temperature of the attached wate...

Stretch out your servo connections with this flexible servo extension cord. It has a 3 pin shrouded "male" connector to plug your servo into and th...

Circuit Playground Express is the next step towards a perfect introduction to electronics and programming. We've taken the original Circuit Playgro...

Solenoids are basically electromagnets: they are made of a coil of copper wire with an armature (a slug of metal) in the middle. When the coil is ...

It's summer and you're sweating and your hair's all frizzy and all you really want to know is why the weatherman said this morning that today's rel...

A Feather board without ambition is a Feather board without FeatherWings! This is the Power Relay FeatherWing. It gives you power to control, and c...

This snappy 8-way joystick beckons you to play with it! It is rugged, and not too large, reminiscent of a Pac Man arcade cabinet. Unlike the potent...

Thermocouples are very sensitive, requiring a good amplifier with a cold-compensation reference. The MAX31855K does everything for you, and can be ...

We're carrying this adapter primarily to allow Chumby Hacker Board users to adapt our nice 5V @ 2A power supply to their CHB. But you can use this ...

These chrome-plated metal buttons are rugged and look real good while doing it! Simply drill a 16mm hole into any material up to 1/2" thick and you...

This handy USB extension cable will make it easy for you to extend your USB cable when it won't reach. The connectors are gold plated for years of ...

This sensor can detect flexing or bending in one direction. They were popularized by being used in the Nintendo PowerGlove as a gaming interface. ...

Solenoids are basically electromagnets: they are made of a big coil of copper wire with an armature (a slug of metal) in the middle. When the coil ...

This Big Freaking Capacitor is just the trick when you have a lot of current sloshing around your project. They'll help smooth out voltage spikes b...

Sew a little sparkle into your wearable project with an Adafruit LED Sequin. These are the kid-sister to our popular Flora NeoPixel, they only show...

This lovely little display breakout is the best way to add a small, colorful and bright display to any project. Since the display uses 4-wire SPI t...

Give your 40 pin, 0.5mm pitch, devices a strrrreeeetch with this extension board.  This 40pin FPC extension board has two 40-pin flex connectors (b...

Now that we have The Single Greatest Raspberry Pi Model A+ Case Ever - we decided to make it even better by adding COLORS!!!!!  Mix and match snap-...

Your power supply problems just got SUPER SOLVED! This 3.3V Buck Converter Breakout board is great for supplying power to low voltage circuits from...

These 2-wire cables are 16cm long and come as a set.  One side has a 2-pin JST SM type connector plug on the end.  The other side has a matching 2-...

Listen to this good news - we now have an all in one digital audio amp breakout board that works incredibly well with the Raspberry Pi! If you're l...