Projects

Intro To RFID – Radio Frequency Identification Basics – Part I

RFID is a way to read data from a small chip using RF. The most common type of RFID is passive RFID. Passive means that the chip itself does not require a battery, and uses the small amounts of energy present from a RFID reader’s signal to transmit. Passive RFID is inexpensive and the most common type of RFID.

Tri-Color Animated LED Cube Lights Up the Night

Tri-Color Animated LED Cube Lights Up the Night

Tri-Color Animated LED Cube Lights Up the Night: Using bi-color LEDs, a little multiplexing, and a microcontroller, green, orange or yellow can be light up individually at any of the 27 locations on the cube. Each of the bi-color LED’s physically contain two LEDs inside of them with a common cathode. If both sides of the LED are on, the LED appears to glow yellow, making a third color.