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Console output for a simple test;

Write settings;  B = 38400, D = 8, S = 1, P = none, H = none

Response is; AUTO, SAE J1850 PWM


Response num char; 21
	(in cleanup) Can't call method "Call" on an undefined value at C:/Strawberry/perl/vendor/lib/Win32API/CommPort.pm line 193 during global destruction.
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