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Product description RFID Kit for Arduino UNO R3 Upgraded version Learning Suite With Retail Box Component Listing: Upgraded Version of Kit RFID Stepper Motor Learning Kits RFID Learning Suite is the entry to the master suite upgrades, updates pla mainly in: 1.1602 I2C 1602 replad the screen to control it more convenient, 2.New RFID module and RFID keychain and white card, 3. Added DS1302 clock module, 4. New of the sound detection module, 5.New temperature and humidity module, 6. New water level detection module7. Added 4 * 4 keypad module 8. New of 8 * 8 dot matrix module 74HC595 and LEDs 74HC595 is a Serial to Parallel Converter which has eight outputs and three inputs that you use to feed data into it a bit at a time. This chip makes it a little slower to drive the LEDs (you can only change the LEDs about 500,000 times a second instead of 8,000,000 a second) but it's still really fast, way faster than humans can detect, so it's worth it. 74HC595 shift register is a type of chip that holds what can be thought of as eight memory locations, each of which can either be a 1 or a 0. To set each of these values on or off, we feed in the data using the 'Data' and 'Clock' pins of the chip. Learn The Science of Electronics with Arduino More than 40 kinds of components and sensors from small parts like LED diodes, resistors and potentiometer to big parts like LCD1602, RFID module and 830 tie-points breadboard, which meet your demands for your different projects either it is simple or complex.
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