Piotr writes, “When developing communication between Arduino and ESP8266, I wanted to spy both lines of serial port. I was unable to find the right program on the web, so I made one myself.”
The task is simple. I want to the spy serial communication at both lines at the same time. The hardware is simple too – I connected both serial lines to Rx pins of two serial-USB converters. To have more flexibility, I made special cable with switch to change modes between spy (two receivers) and communication (Rx and Tx connected to one converter).
Project info at NiceCircuits site.
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