Listen up! This 1.1" (~30mm) diameter speaker is the perfect addition to any breadboard-based audio project where you need 8 Ohm impedance, and have 0.2W or less of power. The two pins are 15mm / 0.6" apart and fit perfectly in a breadboard or perfboard...

These nice switches are perfect for use with breadboard and perfboard projects. They have 0.1" spacing and snap in nicely into a solderless breadboard. They're easy to switch no matter what size fingers you have, but not so easy that they'll get flipped...

Light Sensitive Resistor GL5549

Move fluid safely from here to there with this very nice little pump. Unlike most liquid pumps, this is a peristaltic type - the pump squishes the silicone tubing that contains the liquid instead of impelling it directly. The upshot? The pump never...

Bring a little bit of Times Square into your home with this 16 x 32 RGB LED matrix panel. These panels are normally used to make video walls, but in New York you can see them on the sides of busses and bus stops, to display animations or short video...

Little clicky switches are standard input "buttons" on electronic projects. These work best in a PCB but can be used on a solderless breadboard as shown in this tutorial. The pins are normally open (disconnected) and when the button is pressed they are...

Working voltage: DC5V-20V Quiescent Current: 65uA Level Output Voltage: High 3V / Low 0V Delaying time: 0.3~18s (adjustable) Blockade Time: 0.2s Trigger Method: L: unrepeatable trigger / H: repeatable trigger Detecting Range: 7m, less than 120 degree...

The Raspberry Pi B+ / Pi 2 / Pi 3 / Pi 4 has landed on the Maker World like a 40-GPIO pinned, quad-USB ported, credit card sized bomb of DIY joy. And while you can use most of our great Model B accessories by hooking up our downgrade cable, its probably...

This is the assembled version of the Pi T-Cobbler Plus.  It only works with the Raspberry Pi Model Zero, A+, B+, Pi 2,Pi 3, Pi 4! Or just any Pi with 2x20 connector. The Raspberry Pi B+ and Pi 2 has landed on the Maker World like a 40-GPIO...

Looking for another way to keep your Raspberry Pi cool? Hook up this 5V Mini Cooling Fan and prevent your hard-working Pi from overheating! Of course, it's also great for use with any small computer or FPGA or motor driver or anything...

This inexpensive USB to RS232 cable works well for Linux and Windows 7 environments, but is not currently functioning with Windows 10. Suitable for link download Simple and easy way to give USB support to your designs Cable functions: Red cable:...

This is a digital temperature and humidity sensor module that works with all of the Arduino micro-controllers. Because it is a digital sensor it only necessitates 3 connections, Vcc, GND, and a digital pin for data output. With this sensor you get two...

4pin Mini Voice Sound Sensor Module Microphone Sound module - LM393 Chip  This sensor emits a signal if the microphone of the sensor detects a noise. The sensitivity of the sensor can be adjusted by means of a controller...

Operating Voltage: 5V With LED indicates relay status Control terminal, low level pull, high level relay release Great for DIY project

4-Channel Relay Module for Arduino & Raspberry Pi - 5V This is a 5V (Trigger Voltage) 4-Channel Relay module, It can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM and MSP430. Description 5V...

This is a 5V, 10A 2-Channel Relay interface board. It can be used to control various appliances, and other equipments with large current. It can be controlled directly with 3.3V or 5V logic signals from a microcontroller (Arduino, 8051, AVR, PIC, DSP,...

This is a motor shield for an Arduino Uno that makes it easy for your Arduino to control various types of motors! All you need to do is attach this to your Uno, run wires from your motors to the respective terminal blocks, and supply some external power...

This is a digital light sensor that can be used to precisely measure the ambient light level.  The sensor has a 16 Bit AD converter so it outputs a digital signal that can be read using the Arduino's serial connections.  It...

This is what is known as a Real Time Clock (RTC) module and can be used with any Arduino so that it can tell time. The Arduino does not have a RTC on board and therefore can not tell time for an extended period of time with any accuracy. When the Arduino...

This is a digital temperature and humidity sensor module that works with all of the Arduino micro-controllers. Because it is a digital sensor it only necessitates 3 connections, Vcc, GND, and a digital pin for data output. With this sensor you get two...