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Tag Archives: i2c

Interfacing RTC with Microcontroller

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Have you ever wondered how your PC and phones keep track of time even when the device is turned OFF? Well there is a Real Time Clock (RTC) that is kept powered even is the device is turned OFF. Once the device is turned ON and connected to the internet the device connects to a NTP server (Network Time Protocol) and updates the time and date. This post is intended to give a little insight over these RTCs and their interface with mid-range 8-bit …

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I2C Protocol (2-Wire Interface) in a nut shell

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The I2C protocol also known as the two wire interface is a simple serial communication protocol that uses just two pins of a microcontroller namely SCL (serial clock) and SDA (serial data). This is a very popular protocol cat can be used to address a large number of slave devices that are connected to the same bus. This protocol comes in handy when there is scarcity on available pins in the microcontroller. Each slave device has a slave address or names for which they respond …

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