ESP8266 Community Forum

- Wed Mar 07, 2018 5:10 am #74437 I am not aware of a limit.

There is one central handler that works its way round all the attached interrupts when one or more fires. This is in the core_esp8266_wiring_digital.c interrupt_handler. It uses an array with a structure for each pin.

Have you tried changing the order to see if it does appear to only service the first 3?

- Wed Mar 07, 2018 5:53 am #74438 yes I have changed it around and it does change it.

- Thu Mar 08, 2018 4:23 am #74461 realized it was a cable issue. I'm using over 100m and was causing some issues

- Thu Mar 08, 2018 7:27 am #74465

realized it was a cable issue. I'm using over 100m and was causing some issues

I hope you are putting protection on the inputs.