title: There is some configuration of the Raspberry Pi 4 that I have to change, to make my electron interface able to write on PSoC (by serial port ttyACM0)?
body: <p>I developed my electron interface on Windows (to control a mechanical ventilator), and using it by my PC everything is working, I'm able to receive data and to communicate serial command to PSoC.
  On Raspberry Pi 4 Model B with 4GB of RAM, I installed node js for linux, and I uploaded all the packaging necessary like serial port, plotly ...
  But when I run my code on raspberry I'm able to receive the datas, but also if I send the right string, Raspberry is not able to control the mechanical ventilator.
  Seems that is not able to send it to the serial port, but without giving any errors.
  Has anyone had the same problem? Has anyone an idea of how to solve it?</p>