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I2C Multiplexer pHAT for Raspberry Pi

by 8086
An image of I2C Multiplexer pHAT for Raspberry Pi

This pHAT allows you to connect multiple I2C devices with the same address onto a single I2C bus.

It's a tidy and compact way of connecting an I2C multiplexer IC (TCA9548A) to a Pi - ideal for coupling with a Pi Zero W for a neat remote monitoring and graphing setup (though it's also compatible with all models of Pi with a 40 pin GPIO).

The EEPROM automatically loads the correct i2c-mux overlay and turns it into 8 individual I2C buses (/dev/i2c-3 to /dev/i2c-10) allowing direct communication with the I2C devices as normal (via i2cdetect / i2cget / i2cset / Python SMBUS, etc).

For each multiplexed output there are 4 pins:

  • SDAx
  • SCLx
  • GND
  • V

The "V" output can be altered from the default 3.3 volts to 5 volts by cutting the PCB trace between V and 3v3 and bridging V to 5v. The 3.3v supply is taken directly from the Pi 3v3 rail so care should be taken not to overload it.

Please note: product colour may vary, some production runs have been on a green PCB, but there is no functional difference :-)

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This pHAT allows you to connect multiple I2C devices with the same address onto a single I2C bus.

8086-006

This product is no longer available

It's sad to say goodbye but sometimes we have to retire products to make way for new things.

SKU
8086-006
EAN
0606034883215
Brand
8086
Stock available
0 units
Backorder not allowed on this product
Weight
10g

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