|
Notice: This page contains information for the legacy Phidget21 Library. Phidget21 is out of support. Bugfixes may be considered on a case by case basis. Phidget21 does not support VINT Phidgets, or new USB Phidgets released after 2020. We maintain a selection of legacy devices for sale that are supported in Phidget21. We recommend that new projects be developed against the Phidget22 Library.
|
|
button in the menu bar to go to the Phidget22 version of this page.
Template:SensorAPI: Difference between revisions
(Created page with "Phidget analog sensors do not have their own API- they simply output a voltage that is converted to a digital value and accessed through the "SensorValue" properties and event...") |
No edit summary |
||
| Line 1: | Line 1: | ||
Phidget analog sensors do not have their own API- they simply output a voltage that is converted to a digital value and accessed through the " | Phidget analog sensors do not have their own API- they simply output a voltage that is converted to a digital value and accessed through the "Sensor" properties and events on the PhidgetInterfaceKit API. It is not possible to programmatically identify which sensor is attached to the Analog Input. To an InterfaceKit, every sensor looks the same. Your application will need to apply formulas from this manual to the '''SensorValue''' (an integer that ranges from 0 to 1000) to convert it into the units of the quantity being measured. For example, this is how you would use a temperature sensor in a [[Language_-_C_Sharp|C#]] program: | ||
See the [[1018 User Guide|PhidgetInterfaceKit User Guide]] for | |||
<div class="source"> | |||
<syntaxhighlight lang=csharp> | |||
// set up the interfacekit object | |||
InterfaceKit IFK = new InterfaceKit(); | |||
// link the new interfacekit object to the connected board | |||
IFK.open("localhost", 5001); | |||
// Get sensorvalue from analog input zero | |||
int sensorvalue = IFK.sensors[0].Value; | |||
// Convert sensorvalue into temperature in degrees Celsius | |||
double roomtemp = Math.Round(((sensorvalue * 0.22222) - 61.11), 1); | |||
</syntaxhighlight> | |||
</div> | |||
See the [[1018 User Guide|PhidgetInterfaceKit User Guide]] for more information on the API and a description of our architecture. | |||
For more code samples, find your preferred language on the [[Software_Overview#Language_Support|Languages]] page. | |||
Latest revision as of 18:34, 21 August 2012
Phidget analog sensors do not have their own API- they simply output a voltage that is converted to a digital value and accessed through the "Sensor" properties and events on the PhidgetInterfaceKit API. It is not possible to programmatically identify which sensor is attached to the Analog Input. To an InterfaceKit, every sensor looks the same. Your application will need to apply formulas from this manual to the SensorValue (an integer that ranges from 0 to 1000) to convert it into the units of the quantity being measured. For example, this is how you would use a temperature sensor in a C# program:
// set up the interfacekit object
InterfaceKit IFK = new InterfaceKit();
// link the new interfacekit object to the connected board
IFK.open("localhost", 5001);
// Get sensorvalue from analog input zero
int sensorvalue = IFK.sensors[0].Value;
// Convert sensorvalue into temperature in degrees Celsius
double roomtemp = Math.Round(((sensorvalue * 0.22222) - 61.11), 1);
See the PhidgetInterfaceKit User Guide for more information on the API and a description of our architecture.
For more code samples, find your preferred language on the Languages page.
