We sure love the ATmega328 here at Adafruit, and we use them a lot for our own projects. The processor has plenty of GPIO, Analog inputs, hardware UART SPI and I2C,...

75 flexible stranded core wires with stiff ends molded on in red, orange, yellow, green, blue, brown, black and white. These are a major improvement over the "box of bent...

We've taken our popular Adafruit PN532 breakout board and turned it into a shield - the perfect tool for any 13.56MHz RFID or NFC application. The Adafruit NFC shield uses the...

This is a blank 13.56MHz RFID/NFC card - often used for train/bus passes but also found in other systems where a proximity card is desired. The tag contains a small RFID chip and an...

This is a blank 13.56MHz RFID/NFC laundry tag - often used for laundry but also general tagging. The tag contains a small RFID chip and an antenna, and is passively powered by the...

This is a blank 13.56MHz Classic 'laundry' tag - often used for laundry or identification but also found in other systems where a small proximity card is desired. This one is...

This is a blank 13.56MHz RFID/NFC sticker - often used for inventory uses but also wherever a sticker is desired. The tag contains a small RFID chip and an antenna, and is...

This is a blank 13.56MHz RFID/NFC keychain fob - often used for keys but also an easy way to tag something. The tag contains a small RFID chip and an antenna, and is passively powered...

One of each of our favorite 13.56MHz RFID/NFC Classic 1K tags - 5 in total!Credit card size

This is a blank 13.56MHz RFID/NFC embedded in a phone charm - often used for train/bus passes but also found in other systems where a proximity card is desired. The tag contains a...