Component: Barometer (BMP280 / Grove 101020192) (101020192) (Environmental)
From Flowcode Help
Jump to navigationJump to search| Author | Matrix TSL |
| Version | 1.2 |
| Category | Environmental |
Contents
Barometer (BMP280 / Grove 101020192) component
Barometric pressure sensor with a I2C bus interface. Pressure range 300 to 1100 hPa. Temperature range -40 to +85 ?C.
Component Source Code
Please click here for the component source code: FC_Comp_Source_Grove_Barometer_Sensor_BMP280.fcfx
Detailed description
No detailed description exists yet for this component
Examples
No additional examples
Macro reference
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ReadPressureFloat |
| Reads the pressure as a floating point value in Bars. Calls the ReadPressureRaw function and then converts to a meaningful value. | |
 - FLOAT
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Return |
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Reset |
| Resets the device | |
 - VOID
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Return |
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I2C_Read_Register |
| Reads a byte value from a register on the device | |
 - BYTE
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Address |
| - BYTE
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Return |
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ReadTemperatureFloat |
| Reads the temperature as a floating point value in °C. Resultion sets the return bit value and conversion time. Calls the ReadTemperatureRaw function and then converts to a meaningful value. | |
| - FLOAT
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Return |
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Altitude |
| Calculates the altitude based on difference between actual pressure and the pressure at the sea level P0=1013.25 hPa. | |
| - FLOAT
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Return |
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Forced_Read |
| - VOID
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Return |
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I2C_Write_Register |
| Writes a byte value to a register on the device | |
| - BYTE
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Address |
| - BYTE
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Value |
| - VOID
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Return |
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Initialise |
| Starts up the I2C bus and initialises the pressure sensor ready for use. Returns 1 for a sucessful startup. Returns 0 for a failed startup or no device detected. | |
| - BYTE
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Return |
Property reference
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Properties |
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I2C Properties |
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Slave Address |
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Channel |
| Channel selection | |
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SDA |
| Pin used for SDA (data signal) | |
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SCL |
| Pin used for SCL (clock signal) | |
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Baud Select |
| Baud rate option selector | |
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Baud Rate |
| Baud rate to be used | |
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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. | |
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Sensor Properties |
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Compensation |
| Compensation formulas in double precision floating point or 32 bit fixed point | |
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Humidity Oversampling |
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Pressure Oversampling |
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Temperature Oversampling |
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Mode |
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Standby Normal Mode (ms) |
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Filter Coefficient |
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Simulation |
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Simulate Comms |
| Allows the simulation data to come from the panel GUI or relayed via an injector component. | |
