SMS™ Mobile Sensor Configuration and Logging Options
SMS Mobile has the ability to connect to predefined and custom sensors when logging data in
the field. This document covers the item listed below which will help you to use Sensors with
the SMS Mobile Software:
Basic Sensor Configuration
Connecting an Ag Leader OptRx Sensor
Connecting a Dualem 1s/2s/2/4 Sensor
Connecting a Geonics EM38/B/DD/MK2 Sensor
Connecting a GreenSeeker RT100/500/505 Sensor
Connecting a Holland Scientific 430 Sensor
Connecting a Minolta 502 SPAD Meter
Connecting a VERIS EC Surveyor and EC Instrument
Defining a Custom Sensor
Logging Data and Configuring Tooltips
Data can be logged from external sensors using SMS Mobile in all operations except for the
Boundary logging mode. Sensor configurations can be created, edited or deleted in SMS Mobile.
All sensors connected to SMS Mobile must have their own power source. Certain sensors,
such as the Veris equipment, also require their own GPS source.
There are several predefined configurations in SMS Mobile that are discussed later in this
document. The predefined settings can be modified when setting up your sensor, such as
modifying the COM Port your sensor will be using to communicate with SMS Mobile. Custom
sensors can also be setup with SMS Mobile to log data that is unique to your operation.
Connecting an Ag Leader OptRx Sensor to SMS Mobile [Back to Top]
1. Connect the OptRx Sensor (running firmware version 1.1 or
newer) to the 12 pin Deutsch cable and then connect the 9-pin
end of the cable to the 9-pin port on the Mesa, PC or handheld
device (Ag Leader Part Number: 4002339-10).
2. Open the SMS Mobile Software and turn on the OptRx Sensor.
3. Tap the Setup menu and then the Sensors icon.
4. In the Available Sensor Configurations window tap Add.
5. Select Ag Leader OptRx from the Sensor Model drop down menu.
6. Choose the Operation you wish to record data from the OptRx in.
7. Enter a Configuration Name so that you can recognize this sensor in the future when
displayed in the list of Available Sensor Configurations.
10. Tap Test Sensor.
a. Tap OK after turning on the Dualem Sensor. (The arrow on the end of the
sensor MUST be pointing up and all wires connected. Newer sensors will say
“DUALEM” instead of displaying the arrow. The text must be in the upright and
readable position).
b. Once testing is complete you should receive a message indicating that
messages have been received and that it is connected.
c. Tap OK.
11. Select the Attributes you wish to log from the sensor by placing a check mark in the
Connecting a GreenSeeker RT100/500/505 Sensor
to SMS Mobile [Back to Top]
1. Connect the GreenSeeker Sensor to the Mesa, PC or handheld
device with the serial cable (supplied with the GreenSeeker
unit) to the 9-pin serial port. If using the 505 model you will
need to connect the GreenSeeker Sensor to a null modem
cable (Ag Leader Part Number: 200819) with a gender adapter
(available at any electronics store) between the null modem
and PC cable.
Photo courtesy of GreenSeeker
2. Open the SMS Mobile Software.
3. Tap the Setup menu and then the Sensors icon.
4. In the Available Sensor Configurations window tap Add.
5. Select the GreenSeeker RT100/500/505 from the Sensor Model drop down menu.
10. Tap Test Sensor (you will need a sample leaf or test strip).
a. Tap OK after verifying the SPAD Meter is turned on.
b. Once testing is complete you should receive a message indicating that
messages have been received from the sensor and that it is connected.
c. Tap OK.
11. Select the Attributes you wish to log from the sensor by placing a check mark in the
To define a custom sensor you must specify how the information provided from the sensor is
organized and how SMS Mobile should interpret that data. The following parameters must
be set when defining a custom sensor configuration:
Define Sensor Header to Parse – Defines what text strings from the sensor contains the
data you wish to log. For example, in an ASCII text string formatted as: $, 123.5,
South, XYZ if you wanted to record the 123.5, South and XYZ, then you must define
the $ as the header. After defining the Header then SMS Mobile will know that all
data following this Header will be recorded.
String Delimiter – This setting defines the formatting of the ASCII text string to be
parsed, i.e. how each attribute in the string is separated from one another. Options
are commas, spaces and tabs.
String Terminator – This setting defines how each ASCII text string outputted by the
sensor ends and thus defines the start of the next string.
Logging Type – This setting defines how often the sensor will output data.
Trigger Type – should be used when the sensor outputs a single reading on
demand.
Continuous Type – should be used when the sensor outputs readings
automatically and constantly without any user control. When Continuous is
selected and the sensor is used in any operating mode except for Coverage
Logging then a Sensor icon will appear on the map that will allow you to take a
reading for the currently selected object in the layer.
3. Tap on the Sensors tab and select the desired sensor. Tap OK.
4. When you begin logging data, if the sensor was setup as Continuous Logging your
values will automatically be recorded. If the sensor was setup as Trigger Logging each
time you take a reading the value will be added to the logged data in SMS Mobile.
To display tooltips while logging data with a sensor so that the values you are
recording are displayed in the lower left hand corner of the SMS Mobile Software
follow the steps below:
1. In the operation window go to the Map menu and select Tooltips.