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GMT00 @Track Air Interface Protocol

TRACGMT100AN001 – 20 –

3.2.5. Digital Output

The AT+GTOUT command is used to output specified wave shape from the digital output ports.

Total three wave shapes is supported as below. If set to wave shape 1, the device will maintain this

wave shape at the specified output port after power reset.

Wave shape 1:

 <Duration> = 0ms, <Toggle Times> = 0

Figure 2: Wave Shape 1

Wave shape 2:

 <Duration> = 500ms, <Toggle Times> = 1

Figure 3: Wave Shape 2

Wave shape 3:

 <Duration> = 800ms, <Toggle Times> = 3

Figure 4: Wave Shape 3

 AT+GTOUT=

Example:

AT+GTOUT=gmt100,1,0,0,0,,,,,,,,,,0004$

Parameter

Length(byte)

Range/Format

Default

Password

4 – 6

'0' – '9' 'a' – 'z' 'A' – 'Z'

gmt100

Output1 Status

0|1

Duration

<=3

0 – 255(×100ms)

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