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Filter Time is defined as the minimum time that the signal must be asserted before it is
seen as valid. For example, if an input is configured to send a notification upon a falling
edge signal being asserted – say, when mains power to an irrigation system fails - and
the Filter Time has been set to ten seconds, the notification will only be sent if the falling
edge signal has been present for at least ten seconds.
Blanking Time, on the other hand, refers to the minimum time or ‘cool down’ period
before an asserted input will respond to any subsequent assertions. For example, an
input’s Blanking Time has been set to one hour and the input gets asserted and sends an
SMS notification. One minute later, the input is asserted again. This second assertion will
be ignored until an hour has passed.
Filter and Blanking Time (G-SPEAK CLASSIC+ only)
More than one configuration setting can be applied/edited using a single SMS by
separating the commands with a full stop. In the case of the G-SPEAK Classic+ all I/Os
(configurable inputs and outputs) are defaulted as outputs and may be reconfigured to be
inputs, whereas the G-SPEAK Classic only has one output which cannot be configured to
be an input. Where channels have been set up to act as inputs only (G-SPEAK
CLASSIC+ only), further parameters can be set by specifying Filter and Blanking Times.
Description
Parameters
Loads or queries airtime.
Requires knowledge of the
network-specific USSD codes for
airtime recharge and query.
Load airtime (L)
Query airtime (Q)
Sub-parameters:
Network specific USSD code
AT
(commands have been highlighted for clarity)
Loads airtime voucher number 1234567890
onto a Vodacom SIM card
Examples
Command
Description
Loads airtime voucher number 1234567890
onto an MTN SIM card
P.xxxx.AT.L.*100*01*1234567890#
P.xxxx.AT.L.*102*1234567890#
Airtime remaining on the Vodacom SIM card is
sent via SMS to the querying device
P.xxxx.AT.Q.*100#
Airtime remaining on the MTN SIM card is sent
via SMS to the querying device
P.xxxx.AT.Q.*141#
Airtime remaining on the 8ta SIM card is sent
via SMS to the querying device
P.xxxx.AT.Q.*188#
Will reply back with airtime, SMS and data
bundle balances on the Vodacom SIM card
P.xxxx.AT.Q.*111*502#
Airtime remaining on the Cell C SIM card is
sent via SMS to the querying device
P.xxxx.AT.Q.*101#
Command ‘CO’
This command allows the functionality of the system to be configured. Outputs and inputs
can be set up (dependent on the model), call settings edited, passwords managed, etc.
Configuration Settings
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