I see, that's interesting! Do you know why that is? Is it specific to the ESP32 only? Because it appears to work on the Arduino Uno R3 / atmega328p.

I will try converting to an integer then instead and see if that works. Thanks!

Hi, I am working with the NodeMCU ESP32. I have a coin sensor built from two copper plates that detect when a coin rolls down the chute. I am using the interrupt function to detect the coin. It works well with the Arduino Uno R3, but when connected to the NodeMCU ESP32, a simple calculation in my fu...