Component: Temp / Humidity (SHT21) (Environmental): Difference between revisions
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| width="90%" | | width="90%" class="mtx-class-macrohead" | '''GetHumidityInt''' | ||
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| colspan="2" | returns the relative Humidity reading as an integer value | | colspan="2" | returns the relative Humidity reading as an integer value | ||
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| width="90%" | | width="90%" class="mtx-class-macrohead" | '''GetHumidityReal''' | ||
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| colspan="2" | returns the Humidity reading as a float value | | colspan="2" | returns the Humidity reading as a float value | ||
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| width="90%" | | width="90%" class="mtx-class-macrohead" | '''GetTemperatureInt''' | ||
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| colspan="2" | Return temperature reading as an integer value in degrees C | | colspan="2" | Return temperature reading as an integer value in degrees C | ||
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| width="90%" | | width="90%" class="mtx-class-macrohead" | '''GetTemperatureReal''' | ||
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| colspan="2" | Return temperature reading as a float value in degrees C | | colspan="2" | Return temperature reading as a float value in degrees C | ||
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| width="90%" | | width="90%" class="mtx-class-macrohead" | '''Initialise''' | ||
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| colspan="2" | Initialises the component ready for I2C communications | | colspan="2" | Initialises the component ready for I2C communications | ||
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| width="90%" | | width="90%" class="mtx-class-macrohead" | '''Properties''' | ||
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| colspan="2" | On older microcontroller devices there is a potential for the I2C hardware channel to lock up if there is not a 10ms delay between an I2C stop event and the next I2C start event. Most modern microcontrollers will not have a problem so this property can be disabled to speed up the I2C communications. | | colspan="2" | On older microcontroller devices there is a potential for the I2C hardware channel to lock up if there is not a 10ms delay between an I2C stop event and the next I2C start event. Most modern microcontrollers will not have a problem so this property can be disabled to speed up the I2C communications. | ||
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| width="90%" | | width="90%" class="mtx-class-propfolder" | Simulation | ||
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Latest revision as of 14:37, 13 July 2026
| Author | Matrix TSL |
| Version | 2.0 |
| Category | Environmental |
Temp / Humidity (SHT21) component
Humidity and temperature sensor using an SHT21 IC connected via I2C. On screen GUI allows temperature and humidity values to be simulated, and will show all I2C communication in a console window.
Detailed description
No detailed description exists yet for this component
Examples
No additional examples
Macro reference
GetHumidityInt
|
GetHumidityInt |
| returns the relative Humidity reading as an integer value | |
 - INT
|
Return |
GetHumidityReal
|
|
GetHumidityReal |
| returns the Humidity reading as a float value | |
 - FLOAT
|
Return |
GetTemperatureInt
|
|
GetTemperatureInt |
| Return temperature reading as an integer value in degrees C | |
| - INT
|
Return |
GetTemperatureReal
|
|
GetTemperatureReal |
| Return temperature reading as a float value in degrees C | |
| - FLOAT
|
Return |
Initialise
|
|
Initialise |
| Initialises the component ready for I2C communications | |
 - VOID
|
Return |
Property reference
|
Properties |
|
Channel |
| Channel selection | |
|
SDA |
| Pin used for SDA (data signal) | |
|
|
SDA Remap Pin |
|
|
SCL |
| Pin used for SCL (clock signal) | |
|
|
SCL Remap Pin |
|
|
Baud Select |
| Baud rate option selector | |
|
Baud Rate |
| Baud rate to be used | |
|
Stop Delay |
| On older microcontroller devices there is a potential for the I2C hardware channel to lock up if there is not a 10ms delay between an I2C stop event and the next I2C start event. Most modern microcontrollers will not have a problem so this property can be disabled to speed up the I2C communications. | |
|
Simulation |
|
|
Simulation Comms |
Component Source Code
Please click here to download the component source project: FC_Comp_Source_Humidity_SHT21.fcfx
Please click here to view the component source code (Beta): FC_Comp_Source_Humidity_SHT21.fcfx