M5Stack PaHUB2 I2C Expandable Hub Embedded PCA9548AP-I2C multi-channel switch IC Expansion Module

Description PaHUB2 is an I2C Expandable Hub which can expand a single I2C HY2 0 4P interface and connects up to 6 I2C channels It allows you to mount slave devices with the same I2C address by polling control the different channels to achieve in device coexistence Embedded PCA9548AP I2C multi channel switch IC Save you worries with insufficient I2C interface of the expansion Note When it s connected the PaHUB2 will be polling control the different channels to achieve in device coexistence Please pay attention to the order of channels when programming Features I2C HY2 0 4P PORTA expansion2x LEG0 compatible holesSupport multiple nesting1 6 expansionPlease refer to the schematic and PCA9548AP data manual the Unit can modify the I2C address of the device by adapting the level combination of A0 A2 pins The default address is 0x70 3 Position of Welding patch are reserved on the PCB board of the Unit A0 A2 respectively as shown in the figure below After welding the 0 ohm resistor the corresponding pin will change from low level to high level The pin level combination and its corresponding I2C address are shown in the table below Package Included 1 x Pahub2 Unit1 x HY2 0 4P CableApplication I2C device expansionSpecification SpecificationsParametersChannel Control ICPCA9548APCommunication protocolI2C 0x70 can be modified by resistance A0 A1 A2 Net weight7gGross weight19gProduct size48 24 12mmPacking size67 53 12mmSchematic click to openRelated Link Datas