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Topic Summary

Posted by: jmnatale
« on: June 08, 2021, 09:19:07 pm »

Is port RS-232
Posted by: Jan
« on: June 08, 2021, 08:50:52 pm »

Is it a true RS-232 port or USB to RS-232 adapter? In the second case, you may not be successful (depending on the model).
Posted by: jmnatale
« on: June 08, 2021, 08:42:36 pm »

Good afternoon, someone could help me, I can't make me give an alarm stop the port com. I made the circuit as shown in the image, but when there is silence the com port is not activated