This analog panel meter measures DC voltage from 0-5 volts with 2.5% accuracy.

This is your standard solderless breadboard - three binding posts, two power buses, black aluminum plate backing.

We have no idea what USB device you are hooking up to, but if you want to access the microUSB port on something, you might want this.

The serial enabled LCD allows you to control a parallel based LCD over a single-wire serial interface. Included in this product is a white on black 16x2 LCD connected to a serial backpack.

This is a very simple breadboard power supply kit that takes power from a DC wall wart and outputs a selectable 5V or 3.3V regulated voltage. 

This is a basic breakout board for the FTDI FT232RL USB to serial IC. 

The kit does not require any soldering and is recommended for anyone with a drive to learn more about Blynk and its uses. So if you are looking for a new challenge or a way to get in on the IoT craze, check out the SparkFun IoT Starter Kit with Blynk Board!

Microsoft and SparkFun have teamed up to bring you some IoT (Internet of Things) fun. The Microsoft Azure IoT Starter Kit for the SparkFun Thing Development Board has been designed to help you seamlessly connect your device to the cloud with Microsoft Azure IoT. 

This 2xAA battery holder puts a nice finishing touch on your battery powered project. 

This 12V car adapter jack allows you to plug your project into your car&rsquos cigarette lighter for power on the go.

Do you have some liquids that you need to move? This fluid pump will move 350 gallons per hour! The SEAFLO mini water pump has a heavy duty 12V, 1.5Amp motor and a tough thermoplastic body. 

The ESP8266 Thing is a breakout and development board for the ESP8266 WiFi SoC – a leading platform for Internet of Things (IoT) or WiFi-related projects. The Thing is low-cost and easy to use, and Arduino IDE integration can be achieved in just a few steps.

This is a fantastic find for SFE. A small, high-quality, quad-band, standard SMA terminated, cellular antenna.

O Seguidor de Linhas é uma placa longa composta por oito sensores IR. Este foi desenhado para seguir uma linha escura (spray ou fita isoladora) num fundo claro de cerca de 7,6 cm de largura ou menor . 

The RFID USB Reader is a simple to use, USB to serial base unit for the ID-3LA, ID-12LA, and ID-20LA readers. 

Have you ever wanted to control the flow of a liquid using your computer or microcontroller, but didn&rsquot know how? Well, here&rsquos how: The 12V solenoid controlled fluid valve.

Need range? The 2.4GHz Large Duck Antenna 5dBi with Reverse Polarized - SMA RF connector is perfect for you.

This Load Sensor, sometimes called a strain gauge, is the same one found in digital bathroom scales. This sensor can measure up to about 110 pounds. 

This is a simple three track magnetic card reader with serial output.

This will be a treat for your ears! The Hamburger Mini Speaker is a 3W economical speaker option for any project needing stand-alone sound. 

This cable allows you to access the pins on your car&rsquos OBDII connector. 

This is a 35mm Concave Momentary Push Button similar to the ones you find on arcade games.

This is a 35mm Concave Momentary Push Button similar to the ones you find on arcade games.

This is a 35mm Concave Momentary Push Button similar to the ones you find on arcade games.

This is a 35mm Concave Momentary Push Button similar to the ones you find on arcade games. 

This is the Multi-Chassis Basic 4WD Kit, an easy to assemble and use robot chassis platform.