PCAL6524 24-Bit I2C I/O Expander¶ lbuild module: modm:driver:pcal6524 Ultra low-voltage translating 24-bit Fm+ I2C-bus/SMBus I/O expander with three 8-bit ports (P0, P1, P2), independently selectable pull-up or pull-down resistors per pin, and a maskable interrupt output. Dependencies¶ modm:driver:pcal6524 modm_driver_pcal6524 modm: driver: pcal6524 modm_architecture_gpio_expander modm: architecture: gpio.expander modm_driver_pcal6524->modm_architecture_gpio_expander modm_architecture_i2c_device modm: architecture: i2c.device modm_driver_pcal6524->modm_architecture_i2c_device modm_architecture_register modm: architecture: register modm_driver_pcal6524->modm_architecture_register