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MON08 RS-232 Programming Interface

the AN2295 program is not the one used to connect to the monitor that comes in the HC08 families. You have to use the flash programmer that comes with the CodeWarrior IDE version 6.3 to connect ...
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Serial2.write not working on ESP32

I found the problem FFC socket was reversed. I have changed FFC and problem solved also code should be that ss.begin(9600, SERIAL_8N1, 16, 17);
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Raspberry PI4 and RS232 adapter cable: how to send serial commands

Controlling electronic devices with a computer is not an electrical engineering question. The manual has a section what to do if communications are not working and one of the reasons is that the pump ...
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