Pins 0(RX) and 1(TX) are connected to the corresponding pins of the ATmega16U2 microcontroller, which acts as a USB-UART converter. It is used to communicate the Arduino board with a computer or other devices over a serial interface. To communicate with the periphery through the SPI interface. You can check Arduino LCD I2C tutorial here. If more voltage is applied, you will kill the microcontroller.įor communication with the periphery via the I☬ interface. The input voltage range is from 0 to 5 V. The ADC bit does not change and is set to 10 bits. The PWM bit rate does not change and is set to 8 bits.Īllows presenting analog voltage in digital form. Retaining resistors are connected to the contacts, which are switched off by default but may be enabled programmatically.Īllows outputting analog values as a PWM signal. The logical unit level is 5 V, zero is 0 V.
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