Component: Barometer (MS5637) (Environmental): Difference between revisions

Latest revision as of 14:36, 13 July 2026

A small PCB surface mount barometric pressure sensor with a I2C bus interface. Pressure range 0 to 30 Bar. Temperature range -20 to +85 °C.

Please click here to download the component source project: FC_Comp_Source_Pressure_Sensor_MS5637.fcfx

Please click here to view the component source code (Beta): FC_Comp_Source_Pressure_Sensor_MS5637.fcfx

No detailed description exists yet for this component

No additional examples

	Initialise
Stes up the I2C bus and initialises the termperature sensor ready for use.
- VOID	Return

	ReadPROM
Reads a single 16-bit value from the PROM calibration data.
- BYTE	Address
Range 0-6
- UINT	Return

	ReadPressureFloat
Reads the pressure as a floating point value in Bars. Resultion sets the return bit value and conversion time. Calls the ReadPressureRaw function and then converts to a meaningful value.
- BYTE	Resolution
Range 0-5
- FLOAT	Return

	ReadPressureRaw
Reads the pressure as a digital 32-bit value. Resultion sets the return bit value and conversion time. 0=0.11mBar / 1=0.062mBar / 2=0.039mBar 3=0.028mBar / 4=0.021mBar / 5=0.016mBar
- BYTE	Resolution
Range 0-5
- ULONG	Return

	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.
- BYTE	Resolution
Range 0-5
- FLOAT	Return

	ReadTemperatureRaw
Reads the temperature as a digital 32-bit value. Resultion sets the return bit value and conversion time. 0=0.012°C / 1=0.009°C / 2=0.006°C 3=0.004°C / 4=0.003°C / 5=0.002°C
- BYTE	Resolution
Range 0-5
- LONG	Return

	Properties
	I2C Properties
	Channel
Channel selection
	SDA
Pin used for SDA (data signal)
	SCL
Pin used for SCL (clock signal)
	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
	Simulate Comms
Allows the simulation data to come from the panel GUI or relayed via an injector component.

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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. &nbsp;
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-| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
+| width="10%" align="center" class="mtx-class-propfolder" | [[File:Fc9-conn-icon.png]]
 | width="90%" class="mtx-class-propfolder" | Simulation
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