¶ Overview
Expressions Parameters enable users to perform arithmetic operations on sensor values and configure complex expressions involving multiple sensors. This feature allows for advanced data manipulation and integration, enhancing the capabilities of sensor-based devices.
¶ Navigating to the Calculation Table
- Go to the left side menu and select Devices.
- Add or edit a device.
- Navigate to Sensors.
- Click Add or Edit on the desired sensor.
¶ Arithmetic Operations
Users can perform various arithmetic operations on sensor parameters. Below are some examples of arithmetic expressions:
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Addition:
{ioElements.240.value} + 1- Adds 1 to the value of sensor 240.
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Subtraction:
{ioElements.240.value} - 1- Subtracts 1 from the value of sensor 240.
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Multiplication:
{ioElements.240.value} * 2- Multiplies the value of sensor 240 by 2.
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Division:
{ioElements.240.value} / 2- Divides the value of sensor 240 by 2.
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Exponentiation:
{ioElements.240.value} ^ 2- Raises the value of sensor 240 to the power of 2.
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Modulus:
{ioElements.240.value} % 2- Finds the remainder when the value of sensor 240 is divided by 2.
¶ Sensor Data Integration
Expressions can also combine data from multiple sensors. For example:
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Add Sensor Value to Another Sensor's Value:
{ioElements.240.value} + [GPS#altitude]- Adds the altitude value from the GPS sensor to the value of sensor 240.
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Subtract Sensor Value from Another Sensor's Value:
{ioElements.240.value} - [Engine#RPM]- Subtracts the RPM value from the engine sensor from the value of sensor 240.
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Multiply Sensor Value by Another Sensor's Value:
{ioElements.240.value} * [Temperature#current]- Multiplies the current temperature value by the value of sensor 240.
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Divide Sensor Value by Another Sensor's Value:
{ioElements.240.value} / [Battery#voltage]- Divides the voltage value from the battery sensor by the value of sensor 240.
¶ Configuration
To configure expressions, specify the desired operation and input values as shown in the examples. This flexibility allows for customized calculations and data integration tailored to specific needs.