I2c bus
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Wiring
Color i2cbus Raspberry Pi yellow SCL GPIO 3 / SCL (Pin 5) orange SDA GPIO 2 / SDA (Pin 3) Red VCC / V 3,3V (pin 1) Black GND GND (Pin 6)
How many devices on the bus?
https://www.bluedot.space/tutorials/how-many-devices-can-you-connect-on-i2c-bus/
Pull up resistor calculation
Stackoverflow
Ti.com
Therefore,we can selectany available resistor value between 966.667Ωand 1.77kΩ. The valueof the pull up resistor can be selected basedon the trade-off for the power consumption and speed.