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Components of Arduino Uno board
The important components of the Arduino Uno Board are shown below −
The following table contains the description for each of the labels −
| Label | Description |
|---|---|
| 1 | 7-12 V Barrel Jack |
| 2 | Voltage Regulator |
| 3 | 16 MHz Crystal Oscillator |
| 4 | USB - B Port |
| 5 | Reset Button |
| 6 | Digital Pins |
| 7 | ICSP Pins (SPI can be accessed from here) |
| 8 | ATmega328P microcontroller |
| 9 | Analog Pins |
| 10 | Serial Port TX RX LEDs |
| 11 | USB to UART Conversion IC |
| 12 | Built-in LED (connected to pin 13) |
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