Difference between revisions of "Component: Magnetometer 3-Axis (QMC5883L) (Movement Orientation)"

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==Component Source Code==
 
==Component Source Code==
  
−
Please click here to download the component source project: [https://www.flowcode.co.uk/wiki/componentsource/FC_Comp_Source_Magnetometer_QMC5883.fcfx FC_Comp_Source_Magnetometer_QMC5883.fcfx]
+
Please click here to download the component source project: [https://www.flowcode.co.uk/wiki/componentsource/FC_Comp_Source_temp/Magnetometer_QMC5883.fcfx FC_Comp_Source_temp/Magnetometer_QMC5883.fcfx]
  
−
Please click here to view the component source code (Beta): [https://www.flowcode.co.uk/FlowchartView/?wfile=componentsource/FC_Comp_Source_Magnetometer_QMC5883.fcfx FC_Comp_Source_Magnetometer_QMC5883.fcfx]
+
Please click here to view the component source code (Beta): [https://www.flowcode.co.uk/FlowchartView/?wfile=componentsource/FC_Comp_Source_temp/Magnetometer_QMC5883.fcfx FC_Comp_Source_temp/Magnetometer_QMC5883.fcfx]
  
 
==Detailed description==
 
==Detailed description==
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{{Fcfile|QMC5883L.fcfx|QMC5883L Demo}}
 
{{Fcfile|QMC5883L.fcfx|QMC5883L Demo}}
 +
 +
  
  
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==Macro reference==
 
==Macro reference==
  
−
===Read_Register===
+
===CollectXYZData===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
 
|-
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Read_Register'''
+
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''CollectXYZData'''
 
|-
 
|-
−
| colspan="2" | Reads a value from a register on the accelerometer. 
+
| colspan="2" | Collect the data from the local accelerometer buffers. The Axis parameter specifies the Axis to be read. 0 / 'x' / 'X' - X axis 1 / 'y' / 'Y' - Y axis 2 / 'z' / 'Z' - Z axis 
 
|-
 
|-
 
|-
 
|-
 
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
 
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
−
| width="90%" | Reg
+
| width="90%" | Axis
 
|-
 
|-
 
| colspan="2" |  
 
| colspan="2" |  
 
|-
 
|-
−
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u8-icon.png]] - BYTE
+
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-s16-icon.png]] - INT
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
|}
 
|}
  
  
−
===Write_Register===
+
===Initialise===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
 
|-
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Write_Register'''
+
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Initialise'''
 
|-
 
|-
−
| colspan="2" | Writes a data value to a specific register on the accelerometer 
+
| colspan="2" | Sets up up the communication bus and initialises the accelerometer module.   
 
|-
 
|-
 
|-
 
|-
−
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
+
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
−
| width="90%" | Reg
 
−
|-
 
−
| colspan="2" |  
 
−
|-
 
−
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
 
−
| width="90%" | Data
 
−
|-
 
−
| colspan="2" |  
 
−
|-
 
−
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u8-icon.png]] - BYTE
 
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
|}
 
|}
  
  
−
===UpdateCompassData===
+
===Read_Bearing===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
 
|-
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''UpdateCompassData'''
+
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Read_Bearing'''
 +
|-
 +
| colspan="2" | Reads the current sensor compass bearing based on degrees CW from magnetic north. Returns 0-359 where 0 = North, 90 = East, 180 = South, 270 = West Requires the ArcTan floating point function to be available to work correctly. Supported on AVR, 16-bit  
 +
|-
 
|-
 
|-
−
| colspan="2" | Reads from the compass and updates the local XYZ variables. Returns 1 for new data and 0 for no new data 
+
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
 +
| width="90%" | NumSamples
 
|-
 
|-
 +
| colspan="2" | The number of readings to base the bearing on 
 
|-
 
|-
−
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u8-icon.png]] - BYTE
+
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u16-icon.png]] - UINT
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
|}
 
|}
  
  
−
===CollectXYZData===
+
===Read_Register===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
 
|-
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''CollectXYZData'''
+
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Read_Register'''
 
|-
 
|-
−
| colspan="2" | Collect the data from the local accelerometer buffers. The Axis parameter specifies the Axis to be read. 0 / 'x' / 'X' - X axis 1 / 'y' / 'Y' - Y axis 2 / 'z' / 'Z' - Z axis 
+
| colspan="2" | Reads a value from a register on the accelerometer. 
 
|-
 
|-
 
|-
 
|-
 
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
 
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
−
| width="90%" | Axis
+
| width="90%" | Reg
 
|-
 
|-
 
| colspan="2" |  
 
| colspan="2" |  
 
|-
 
|-
−
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-s16-icon.png]] - INT
+
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u8-icon.png]] - BYTE
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
|}
 
|}
Line 188: Line 185:
  
  
−
===Read_Bearing===
+
===UpdateCompassData===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
 
|-
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Read_Bearing'''
+
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''UpdateCompassData'''
 
|-
 
|-
−
| colspan="2" | Reads the current sensor compass bearing based on degrees CW from magnetic north. Returns 0-359 where 0 = North, 90 = East, 180 = South, 270 = West Requires the ArcTan floating point function to be available to work correctly. Supported on AVR, 16-bit  
+
| colspan="2" | Reads from the compass and updates the local XYZ variables. Returns 1 for new data and 0 for no new data 
 
|-
 
|-
 
|-
 
|-
−
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
+
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u8-icon.png]] - BYTE
−
| width="90%" | NumSamples
 
−
|-
 
−
| colspan="2" | The number of readings to base the bearing on 
 
−
|-
 
−
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u16-icon.png]] - UINT
 
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
|}
 
|}
  
  
−
===Initialise===
+
===Write_Register===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
 
|-
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Initialise'''
+
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Write_Register'''
 +
|-
 +
| colspan="2" | Writes a data value to a specific register on the accelerometer 
 +
|-
 +
|-
 +
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
 +
| width="90%" | Reg
 +
|-
 +
| colspan="2" |  
 
|-
 
|-
−
| colspan="2" | Sets up up the communication bus and initialises the accelerometer module.  
+
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
 +
| width="90%" | Data
 
|-
 
|-
 +
| colspan="2" |  
 
|-
 
|-
−
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
+
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u8-icon.png]] - BYTE
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
|}
 
|}

Revision as of 12:02, 3 February 2023

Author Matrix TSL
Version 1.6
Category Movement Orientation


Magnetometer 3-Axis (QMC5883L) component

QMC5883L 3-Axis Magnetometer sensor Useful for working out data such as compass orientation.

Component Source Code

Please click here to download the component source project: FC_Comp_Source_temp/Magnetometer_QMC5883.fcfx

Please click here to view the component source code (Beta): FC_Comp_Source_temp/Magnetometer_QMC5883.fcfx

Detailed description

No detailed description exists yet for this component

Examples

Here is a very simple demonstration on how to use the sensor to read X, Y, Z magnetometer data from the sensor.

FC6 Icon.png QMC5883L Demo




Macro reference

CollectXYZData

Fc9-comp-macro.png CollectXYZData
Collect the data from the local accelerometer buffers. The Axis parameter specifies the Axis to be read. 0 / 'x' / 'X' - X axis 1 / 'y' / 'Y' - Y axis 2 / 'z' / 'Z' - Z axis 
Fc9-u8-icon.png - BYTE Axis
 
Fc9-s16-icon.png - INT Return


Initialise

Fc9-comp-macro.png Initialise
Sets up up the communication bus and initialises the accelerometer module.  
Fc9-void-icon.png - VOID Return


Read_Bearing

Fc9-comp-macro.png Read_Bearing
Reads the current sensor compass bearing based on degrees CW from magnetic north. Returns 0-359 where 0 = North, 90 = East, 180 = South, 270 = West Requires the ArcTan floating point function to be available to work correctly. Supported on AVR, 16-bit  
Fc9-u8-icon.png - BYTE NumSamples
The number of readings to base the bearing on 
Fc9-u16-icon.png - UINT Return


Read_Register

Fc9-comp-macro.png Read_Register
Reads a value from a register on the accelerometer. 
Fc9-u8-icon.png - BYTE Reg
 
Fc9-u8-icon.png - BYTE Return


SimSetCompass

Fc9-comp-macro.png SimSetCompass
Allows the XYZ slider values to be set via the simulation 
Fc9-s16-icon.png - INT X
 
Fc9-s16-icon.png - INT Y
 
Fc9-s16-icon.png - INT Z
 
Fc9-void-icon.png - VOID Return


UpdateCompassData

Fc9-comp-macro.png UpdateCompassData
Reads from the compass and updates the local XYZ variables. Returns 1 for new data and 0 for no new data 
Fc9-u8-icon.png - BYTE Return


Write_Register

Fc9-comp-macro.png Write_Register
Writes a data value to a specific register on the accelerometer 
Fc9-u8-icon.png - BYTE Reg
 
Fc9-u8-icon.png - BYTE Data
 
Fc9-u8-icon.png - BYTE Return



Property reference

Fc9-prop-icon.png Properties
Fc9-type-14-icon.png Bit Depth
 
Fc9-type-16-icon.png Compass Data Rate
Sets the output conversion rate. 
Fc9-type-16-icon.png Oversample Ratio
 
Fc9-type-16-icon.png Compass Scale
 
Fc9-conn-icon.png Connections
Fc9-type-16-icon.png Channel
Channel selection 
Fc9-type-16-icon.png Baud Select
Baud rate option selector 
Fc9-type-14-icon.png Baud Rate
Baud rate to be used 
Fc9-type-7-icon.png 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.  
Fc9-type-5-icon.png SDA
Pin used for SDA (data signal) 
Fc9-type-5-icon.png SCL
Pin used for SCL (clock signal) 
Fc9-type-7-icon.png Use RDY Pin
 
Fc9-conn-icon.png Simulation
Fc9-type-7-icon.png Simulate Comms
Yes: Accelerometer data will come from the simulation component sliders. No: Accelerometer data will come from the I2C CAL component - API etc 
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