Tag Archives: Leonardo

Freetronics Cube + NFC Tag + Arduino Leonardo

I bought RFID-RC522 NFC reader online. You can get them from Ebay or DX for <$10. The board is based on NXP  MFRC522  and has on pcb RFID antenna. Arduino website has online material on how to interface MFRC522 to Arduino board.

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Launchpad vs Leonardo – Keypad & Serial LCD

The next challenge is interfacing with 12 button matrix keypad  and serial LCD . In this challenge, the micros need to read the keypad input and display it on the serial LCD. If the # key is entered after the … Continue reading

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Launchpad vs Leonardo – DHT11 sensor & Serial LCD

The next challenge is interfacing with serial LCD and DHT11 Ambient Humidity & Temperature sensor . In this challenge, the micros need to read the proprietary one wire signal from DHT11 sensor and display it on the serial LCD.

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Launchpad vs Leonardo – Ultrasonic Sensor

The next challenge is proximity detector using the ultrasonic sensor. In this challenge, the micros need to capture the PWM signal transmitted by the ultrasonic sensor. The distance of the nearby object is translated on to four LEDs. The micros … Continue reading

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Launchpad vs Leonardo – RFID Module & Buzzer

The next challenge is interfacing with RFID module and Buzzer. I purchased the RFID module from SeeedStudio. It is a 13.56 MHz RFID reader capable of ISO14443 type A.    For this test, the micro would regularly send the get_read_ID command and parse … Continue reading

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Launchpad vs Leonardo – Blink LED test

Okay, the first challenge is the Hello World of the embedded programming: Blinking LED. For this test, let’s try to program both platforms to blink on-board LED at rate of 2 Hz (1 second ON, 1 second OFF) Let’s not … Continue reading

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