Connect a VNA adapter to watch adapter statistics and live J1939 vehicle data. No software to install.
Not connected
Vehicle · J1939
Vehicle speed
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Service brake
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Engine retarder
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Last J1939 frame —
Adapter · statistics
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Hardware version —Software version —
Last statistics framewaiting…
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Works in Chrome, Edge, or Opera on desktop. First time, pick
Choose a COM port… — the Windows dialog lists each adapter with its COMx number.
After that it stays in the dropdown for one-click reconnect. Close any other program using the port first.