Infrared (IR) break-beam sensors are a simple way to detect motion. They work by having an emitter side that sends out a beam of human-invisible IR light, then a receiver across the way which is sensitive to that same light. When something passes between...

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...

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

This is a digital Tap/Knock sensor on a small circuit board that is designed to work with all of the Arduino boards. It is easy to incorporate into any project requiring only a 5v supply, ground, and a digital input to measure the sensors readings (High...

Your basic 7-segment LED. Common anode. Two decimal points, but only the one on the right is wired. Digit height is 0.6". Overall height is 1". Resources Datasheet Arduino Library (Thanks Derek!)

This is an Arduino Compatible Ultrasonic sensor, it can be used to measure the distance from the sensor to other objects around it. These types of sensors are used on robots for collision avoidance and guidance or as trip sensors for alarm systems or...

MAX7219 Dot matrix LED Display Module Product Description 1.A single module can drive an 8 * 8 common cathode lattice. 2.Module Operating voltage: 5V. 3.Module size: 5 cm long X 3.2 cm wide X 1.5 cm high. 4.With four screws hole, aperture 3mm,...

Infrared LEDs are used for remote controls (they’re the little LED in the part you point at your TV) and ‘night-vision’ cameras, and these little blue guys are high powered ones! They are 940nm wavelength, which is what nearly all...

This is a 5V 4-Channel Relay interface board. Be able to control various appliances, and other equipment with large currents. It can be controlled directly by Micro-controller (Raspberry Pi, Arduino, etc.). Features 5V 4-Channel Relay interface...

With the Pi-EzConnect you can connect all sorts of electronics to a single Raspberry Pi  with no soldering or breadboarding! This HAT has screw-terminals for each pin on the Pi Header Key features: Solderless or soldered connections for all...

This is a 10 Pack of 10K Ω Resistors. 10k Ohm ±5%, 1/6W Through Hole Resistor Axial Flame Retardant Coating, Safety Carbon Film

This is a 10 Pack of 1K Ω Resistors. 1k Ohm ±5%, 1/4W Through Hole Resistor Axial Flame Retardant Coating, Safety Carbon Film

This is a 10 Pack of 330 Ω Resistors. 330 Ohm ±5%, 1/6W Through Hole Resistor Axial Carbon Film

This is a 10 Pack of 4.7K Ω Resistors. 4.7k Ohm ±5%, 1/4W Through Hole Resistor Axial Flame Retardant Coating, Safety Carbon Film

Add some colour to your next coding project with our new Halo board for the BBC micro:bit. The Halo has 24 ZIP LEDs, which are individually addressable full colour LEDs. This means that each LED can display a huge spectrum of colours, allowing...

The MonkMakes Relay for micro:bit is a solid-state (no moving parts) relay that allows an output of a micro:bit to turn things on and off. This relay can be used to switch low voltage devices such as light bulbs, a motor, a small heating element or even...

ElecFreaks Micro:bit Breakout Board matches perfectly with the BBC micro:bit pins. Plug in this breakout board for instant access to micro:bit’s GPIO. Features Input voltage: 3.3V, Powered by the edge connector of the micro:bit. Extend all of...

Caution! The BBC micro:bit is NOT included. You can buy the BBC micro:bit here. Looking to do more with your BBC micro:bit? Unlock its potential with this pre-built version of Kitronik Edge Connector Breakout Board! This...

Diameter: 5mm Model: 5549 Light Resistance 45-140KO Dark resistance 10MO

Need some really bright LEDs? We are big fans of these clear blue LEDs, in fact we use them exclusively in our kits. They are very bright and have about 20 degree LED beam. They go easily into a breadboard and will add that extra zing to your project...