• 5V-3.3V: Output voltage• GND: Ground• SCL: Data synchronization for I2C protocol• SDA: Data information for I2C protocol• CS: Selecting subset devices for SPI protocol• SCK: Synchronization for SPI protocol• MOSI: Data transmission line for SPI protocol• MISO: Data receiving line for SPI protocol• TXD: USART data transmitter (connected to the RX pin of the opposing device)• RXD: USART data receiver (connected to the TX pin of the opposing device)• CVB: CVBS (Composite Video Baseband Signal) pin used for the output of the composite video signals. Connect this CVBS pin to devices such as TVs or monitors that support composite video input.• MICP: External microphone connection (positive line or positive signal of the microphone)• MICN: External microphone connection (negative line or negative signal of the microphone)• IRRX: Receiving infrared signals (IR)• LOG11: A GPIO pin as an input and output used for general-purpose applications• DM-DP: Two data lines used for transmitting and receiving digital signals in USB communication• RD: Receiving data (Ethernet port)• TD: Transmitting data (Ethernet port)• LNK: Displaying the connection status and the Ethernet network communication• SPD: Displaying the speed of the Ethernet network connection• LOR: Sound output data for connecting to an external device such as a speaker or amplifier (LOR is the right channel output)• LOL: Sound output data for connecting to an external device such as a speaker or amplifier (LOL is the left channel output)You can see the pinout of the NanoPi Duo Board in the image below.For more information, refer to the datasheet.
How to Use And Program NanoPi Duo
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