User manual

Confidential, the whole present document is the sole property of Maestro Wireless Solution Ltd.
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13. AI TRIGGERED AT COMMAND
This feature makes use of the Maestro 100 2G analogue input (AI) port as a sensor. If the signal to the port match the
pre-defined condition a stored AT command will be executed.
User can use AT+ADCAT command to set the condition and store AT command to be executed, and using
AT+ADCATLMT command to set the upper and lower limit of the sensing value.
13.1. Description of the Operation
1. And external DC voltage can be connected to the AI port. The maximum voltage is 5V
2. When ADCAT is enabled, the AI port will be checked every 0.1 second. Depending on setting, a saved AT command
will be executed if condition is fulfilled for the defined period.
3. Two trigger directions can be chosen:
- 1: Low-to-High (exceed High Limit to trigger)
- 0: High-to-Low (below Low Limit to trigger)
* See AT+ADCAT command on setting Threshold value T.
AI port
AI value
Time = T
T=TH  Trigger to execute
AT command if direction is
0
Time = T
T=TH  Trigger to execute
AT command if direction is
1
Start to count threshold
time when crossing
High/Low Limit