TCA9548 TCA9548A 1-to-8 I2C 8-channel IIC multi-channel expansion board module expansion board
I found the I2C sensor, you want to connect two or three or more people to yours when you realize “Oh, this chip has a fixed I2C address, and from what I know about I2C, you can’t have two Both devices have the same address on the same SDA/SCL pin! “Are you out of luck? You will if you don’t have this cold 9548 to 8 I2C multiplexer!
Finally, a method can reach 8 I2C devices with the same address connected to a microcontroller-this multiplexer acts as a gatekeeper, shuttle commands to selected I2C pins with your commands.
Using it is quite simple: the multiplexer itself is to the I2C address 0x70 (but it can be adjusted from 0x70 to 0x77), you only need to write the number of multiplexed outputs required for one byte, port, and BAM-any future The I2C packet will be sent to this port. In theory, you can have 8 multiplexers, each 0x70-0x77 address in order to control the same-i2c-addressed-part of 64.
Like all Adafruit breakthroughs, we put this good chip on the breakthrough you so you can use it to detect capacitance and resistance on the circuit board, and make use of the card. Some headers are required and can be inserted into a bread board once soldered. The chip itself is 3V and 5V compatible, so you can use it with any logic level.
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