Windows
Free
Comm Operator Pal 4.0
Comm Operator Pal is a free tool to test and debug RS232 devices
Latest version
4.0
Developer
Serial Port Tool
Program info
Comm Operator Pal is a free tool to test and debug RS232 devices that communicated with serial port, TCP/IP, UDP and HTTP.
It supports data in text, decimal and hex format. Data can be sent in list automatically. Single data can be sent repeatedly. It has built in check-sum calculator.
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