How The I2C Protocol Works - Using Gravity: Digital 1-to-8 I2C Multiplexer
In this video, we will talk about the I2C protocol. We're using Gravity: Digital 1-to-8 I2C Multiplexer, which solves address conflict and enables normal communication with multiple same-address I2C devices, to make a tomato clock.
How to Make A Cube Timer Using 4 OLED Displays and I2C Multiplexer ► https://community.dfrobot.com/makelog...
Materials:
Gravity: Digital 1-to-8 I2C Multiplexer ►
https://www.dfrobot.com/product-1780....
Gravity: I2C OLED-128x64 Display ►
https://www.dfrobot.com/product-1576....
Gravity: I2C SD2405 RTC Module ►
https://www.dfrobot.com/product-1600....
FireBeetle 2 ESP32-E IoT Microcontroller ►
https://www.dfrobot.com/product-2195....
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This I2C multiplexer is easy to use, plug and play and no need to weld. 1 multiplexer has 8 I2C ports, this means you can hook up 8 same-address devices at the same I2C port by 1 multiplexer . The default I2C address of the multiplexer is 0x70, and you can adjust from 0x70 to 0x77. In theory, you could hook up 8 multiplexers on address 0x70~0x77 , to control 64 same-address devices. So powerful!
Timestamps:
What is I2C? 00:00
How does the I2C bus work? 01:10
How to use I2C? 03:03
The tomato clock 03:51
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