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What communication protocol does the Nokia 5110 GDM follow?

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What communication protocol does the Nokia 5110 GDM follow?

(a) SPI

(b) UART

(c) I2C

(d) API

I have been asked this question in examination.

This is a very interesting question from OLED Display Module topic in portion Interfacing of Sensors, Actuators, and Other Modules of Arduino

1 Answer

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Best answer
The correct choice is (a) SPI

Best explanation: The Nokia 5110 Graphical Display Module uses the SPI communication protocol. It means Serial Peripheral Interface and it allows only a single stream of data to be moved to and from the source and the deployment target.

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