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These batteries are intended for use in electronics projects by people knowledgeable in the use and chemistry of lithium ion batteries. Do not use...

These batteries are intended for use in electronics projects by people knowledgeable in the use and chemistry of lithium ion batteries. Do not use ...

These batteries are intended for use in electronics projects by people knowledgeable in the use and chemistry of lithium ion batteries. Do not use...

These batteries are intended for use in electronics projects by people knowledgeable in the use and chemistry of lithium ion batteries. Do not use ...

These batteries are intended for use in electronics projects by people knowledgeable in the use and chemistry of lithium ion batteries. Do not use...

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...

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 sensor is essentially a reed switch, encased in an ABS plastic shell. Normally the reed is 'open' (no connection between the two wires). The o...

Handy for making wire harnesses or jumpering between headers on PCB's. These premium jumper wires are 12" (300mm) long and come in a 'strip' of 40 ...

If you need to connect a battery pack or wired power supply to a board that has a DC jack - this adapter will come in very handy! There is a 2.1mm ...

OMG WATCH OUT! This 100mm diameter arcade button with a 16mm deep plastic base is so massive and inviting it may collapse upon itself and form a ...

OMG WATCH OUT! This 100mm diameter arcade button with a 16mm deep plastic base is so massive and inviting it may collapse upon itself and form a ...

OMG WATCH OUT! This 100mm diameter arcade button with a 10mm deep plastic base is so massive and inviting it may collapse upon itself and form a ...

OMG WATCH OUT! This 100mm diameter arcade button with a 10mm deep plastic base is so massive and inviting it may collapse upon itself and form a b...

OMG WATCH OUT! This 100mm diameter arcade button with a 16mm deep plastic base is so massive and inviting it may collapse upon itself and form a bl...

Add another 8 pins to your microcontroller using a MCP23008 port expander. The MCP23008 uses two i2c pins (these can be shared with other i2c devic...

Add another 16 pins to your microcontroller using a MCP23017 port expander. The MCP23017 uses two i2c pins (these can be shared with other i2c devi...

Need to add analog inputs? This chip will add 8 channels of 10-bit analog input to your microcontroller or microcomputer project. It's super easy t...

This I2C digital temperature sensor is one of the more accurate/precise we've ever seen, with a typical accuracy of ±0.25°C over the sensor's -40°C...

These panels come to us from Voltaic Systems, makers of fine solar-powered bags and packs. These are waterproof, scratch resistant, and UV resista...

The "poor man's" accelerometer/motion sensor! These spring-vibration switches are medium sensitivity non-directional vibration induced trigger swit...

Punch in your secret key into this numeric membrane keypad. This keypad has 4 buttons, and since every key has its own wire line, no matrix code is...

Add some steely elegance to your project with these Metal Ball Tactile Buttons. They've got a nice industrial shine to them along with a light blue...

Double up on your micro USB capabilities with the Micro B USB 2-Way Splitter Cable. This splitter is great for reducing cable clutter and freeing u...