FEASA LED ANALYSER
ICT VERSION
Capture Mode
AUTO CAPTUREPWM - Capture PWM LED Data
Transmit Receive
capturepwm
cpwm
OK
OK
Description
Pulse-Width-Modulated(PWM) LED's are switched on and off rapidly to save power and to
control Intensity. The Analyser automatically determines the correct settings required to
execute the test.
This command uses the auto-ranging feature and a pre-set averaging factor to capture the
LED data. This command is useful if it is required to test very dim and very bright PWM LED's
together.
The command instructs the LED Analyser to read and store the colour and Intensity of all the
LED's positioned under the fibers. The data is stored until the power is removed or another
capture command is issued. When completed the Analyser will transmit the character OK on
the receive line to the transmitting device (i.e. the PC).
Example:
The PC transmits capturepwm to the LED Analyser. The Analyser sends OK to the PC to
acknowledge that the command is completed.
capturepwm
OK
or
cpwm
OK
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