Search results for “rfid”

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 ...

This Reflective IR Sensor is a simple plastic casing with two elements - an IR LED and an IR phototransistor. You can control the IR LED and turn i...

"You see, wire telegraph is a kind of a very, very long cat.  You pull his tail in New York and his head is meowing in Los Angeles.  Do you underst...

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 b...

Use these to stack shields on your Arduino! These are standard 6-pin, 8-pin and 10-pin 0.1" spacing female headers...with a twist! The pins are ext...

"You see, wire telegraph is a kind of a very, very long cat.  You pull his tail in New York and his head is meowing in Los Angeles.  Do you underst...

If you've ever been curious about software defined radio (SDR), this USB stick is the easiest way possible to have fun with a powerful, configura...

If you have a modern smart phone you may have noticed that it comes with built in wireless charging capability called 'Qi charging.' Qi is a tradem...

"You see, wire telegraph is a kind of a very, very long cat.  You pull his tail in New York and his head is meowing in Los Angeles.  Do you underst...

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...

This SHARP distance sensor bounces IR off objects to determine how far away they are. It returns an analog voltage that can be used to determine ho...