WiSnap User Manual 4.41 05282015-ML
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You can also sample multiple channels by using a bit mask:
show q 0x1<mask>
where mask is a bit mask of the channels.
For example, to read channels 0, 1, and 7, send the
show q 0x183
command.
The return values are the format:
8
<chan0>,
8
<chan1>,
8
<chan7>
\r\n
Automatic sampling of sensor pins:
The sensor pins can be automatically sampled and data forwarded in two modes:
1)
The UDP broadcast packet will contain the value of the samples.
2)
In HTTP mode, the pin sampled data can be forwarded to a remote server
To enable the above modes, use the
set q sensor <mask>
command.
For example, to sample all sensors inputs, use the
set q sensor 0xff
command.
Using the Built-In Sensor Power
WiSnap modules contain an onboard Sensor power pin, which is controlled by the
set q sensor
<
mask
> command. <
mask
> is a
bit mask value that determines which sensor pins to sample when sending data using the UDP broadcast packet or the HTTP
auto-sample function.
NOTE:
In versions of firmware prior to 2.23, this command is named
set option sensor
. Firmware versions 2.23 and higher
support the
set q power
<
value
> command. This command sets an 8-bit register with two 4 bit nibbles that automatically turns
on the sensor power.
ON BOARD TEMPERATURE OPTION (RN-121-TEMP ONLY)
show q t
The return values are the format: T=207\r\n - this would be 20.7° C.
show q t 1
-
enables automatic sampling and output once per second.
show q t 0
- turns off automatic sampling and output of temperature.