Using SC16IS750 (I2C UART/GPIO) with ESP-01? Interrupts?

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Using SC16IS750 (I2C UART/GPIO) with ESP-01? Interrupts?

By awardblvr
- Tue Jan 17, 2017 2:22 pm #61150 Does anyone know if it is possible (or recommended) to implement an interrupt handler for the ESP-01 to use ONE (and only one) I2C device, SC16IS750 (I2C Serial UART with GPIO) that can handle interrupts such as a rotary-encoder might generate if using the GPIO pins of the SC16IS750? Or is the ESP-01 fast enough that polling for the status of the SC16IS750' Line Status Register (LSR) frequently, the recommended implementation? (light WiFi and other serial operations)?

Which would be the best ESP-01 pins to use for SDA, SCL and IRQ? (if it is OK)

(programming env - Arduino IDE)

Thanks
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