Difference between revisions of "Component: Thermistor (Environmental)"
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Revision as of 13:31, 17 November 2021
| Author | Matrix TSL |
| Version | 1.1 |
| Category | Environmental |
Contents
Thermistor component
A generic thermistor component that can be used to simulate and create code for any thermistor with a known temperature/resistance curve. Thermistor is connected in a simple potential divider circuit - thermistor between ADC input and 0V, and a fixed resistor between ADC and the positive supply. Default calibration is for the EBM003 module.
Detailed description
No detailed description exists yet for this component
Examples
No additional examples
Downloadable macro reference
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GetIntegerTemperature |
| Reads the ADC input and returns the calculated Temperature as Integer degrees C | |
 - INT
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Return |
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SetChannel |
| Set the ADC Channel | |
| - INT
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ChannelID |
 - VOID
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Return |
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SetMinMax |
| Set the minimum and maximum temperature values that can be shown and set on the thermometer readout. | |
 - FLOAT
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Min |
| Minimum Value | |
| - FLOAT
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Max |
| Maximum Value | |
| - VOID
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Return |
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GetRealTemperature |
| Reads the ADC input and Returns the calculated Temperature as Float value in degrees C | |
| - FLOAT
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Return |
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SetTemperature |
| Sends the given temperature to the display, and calculates the internal values used by the simulated read macros. | |
| - FLOAT
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Temperature |
| Zero to one value - representing min-max of the sensor. | |
| - VOID
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Return |
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CalculateTemperature |
| Converts the input ADC value and returns the Temperature in tenths of degree C | |
 - UINT
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ADCValue |
| ADC Reading to be converted | |
| - INT
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Return |
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GetADCValue |
| Returns the Raw ADC value from the Analogue Channel | |
| - UINT
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Return |
Property reference
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Properties |
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ADC Channel |
| The ADC channel to which the thermistor circuit is connected. It is assumed that the thermistor is connected between the ADC pin and 0V, with a fixed resistor connected between the ADC pin and +V. | |
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ADC Bit Resolution |
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Conversion speed |
| Clock setting to select how fast the ADC peripheral will perform an ADC conversion. The FRC setting is based on a RC time base and so will vary with temperature and pressure. Other settings are generally based on divisions of the master clock. | |
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Acquisition cycles |
| Number of micro seconds to wait for the ADC input to charge before starting the analogue sample. | |
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Wiring |
| Specifies the arrangement of the Thermistor and Fixed Resistor. Pull Down - Thermistor connected between ADC pin and GND, fixed resistor between ADC pin and VCC. Pull Up - Thermistor connected between ADC pin and VCC, fixed resistor between ADC pin and GND. | |
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Resistor Value |
| Value in Ohms of the pullup series resistor. i.e. The resistor is connected between the ADC pin and the positive supply rail. | |
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-25C Thermistor Value |
| Value in Ohms of the Thermistor at -25 deg C | |
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0C Thermistor Value |
| Value in Ohms of the Thermistor at 0 deg C | |
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25C Thermistor Value |
| Value in Ohms of the Thermistor at 25 deg C | |
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50C Thermistor Value |
| Value in Ohms of the Thermistor at 50 deg C | |
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75C Thermistor Value |
| Value in Ohms of the Thermistor at 75 deg C | |
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100C Thermistor Value |
| Value in Ohms of the Thermistor at 100 deg C | |
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125C Thermistor Value |
| Value in Ohms of the Thermistor at 125 deg C | |
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Connections |
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Simulations |
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Label |
| A text label to help you identify the component on the panel. | |
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Min. Temp. |
| Minimum termperature that can be set or displayed on the thermometer slider. | |
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Max. Temp. |
| Maximum termperature that can be set or displayed on the thermometer slider. | |
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Scale divisions |
| Number of numbered divisions shown on the thermometer scale. | |
