If you do anything with electronics, you’re probably already using transistors, but you’re probably using them in large, prepackaged clusters of just one type. The SparkFun Discrete Semiconductor Kit addresses your needs of only needing one...

Most of our customers love using the Arduino for prototyping, design, and invention but find themselves stuck when trying to connect the Arduino to the latest sensors, displays, controllers, interfaces, etc. as they are almost all 3.3V logic these days...

Level shifting chips let you connect 3V and 5V devices together safely. This chip is similar to others in the shop (such as the 74LVC125) except this one is particularly good at converting 3V logic up to 5V. This is in demand, especially when connecting...

This is the BC337, an NPN silicon BJT (Bipolar Junction Transistor). This little transistor can help in your project by being used to help drive large loads or amplifying or switching applications. The BC337 is specifically rated at 50V and 800mA max...

Transistors are powerful little electronic switches, and when little NPN transistors aren't powerful enough for your project, use these beefy TIP120 Darlington transistors. Great for whenever you need to control medium to high-power electronics such as...

An IC (Integrated Circuit) socket allows you to insert and remove chips easily from an assembled kit or project This item contains 3 of the 8 pin 0.3" wide version. Best used with chips that have 8 pins (2x4) and have 0.3" pin spacing. These are often...

An IC (Integrated Circuit) socket allows you to insert and remove chips easily from an assembled kit or project This item contains 3 of the 28 pin 0.6" wide version. Best used with chips that have 28 pins (2x14) and have 0.6" pin spacing. We also have 0...

Add a bunch of high-power outputs to a microcontroller system with chainable shift registers. These chips take a serial input (SPI) of 1 byte (8 bits) and then output those digital bits onto 8 pins. You can chain them together so putting three in a row...

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 to use, and uses SPI so only 4 pins are required. We chose this chip as a great accompaniment to the...

Transistors are powerful little electronic switches, and we really like these NPN transistors whenever we need to control medium-power electronics such as small motors, solenoids, or IR LEDs. We find them so handy, they come in a pack of 10! Each...

The name says it all on this one. An ATmega328P in DIP package, pre-loaded with the Arduino Optiboot (Uno 16MHz) Bootloader. This will allow you to use Arduino code in your custom embedded project without having to use an actual Arduino board. To get...