I am trying to send the collected data from a pulse sensor PulseSensor , but the code is addressed to the Arduino board and not to the NodeMCU board, this example Example NodeMCU (in this case I would use Firebase ) did not work either, since there is an error when compiling in:
interruptSetup(); // sets up to read Pulse Sensor signal every 2mS
As I saw it is for the same reason the code is for Arduino and not for MCU, they could indicate me an alternative for this problem.