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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Initialise'''
| width="90%" class="mtx-class-macrohead" | '''Initialise'''
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| colspan="2" | Sets up the I2C bus ready to communicate with the sensor IC. Sets the address variable back to the Address property value. 
| colspan="2" | Sets up the I2C bus ready to communicate with the sensor IC. Sets the address variable back to the Address property value. 
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''ReadMagneticFieldRaw'''
| width="90%" class="mtx-class-macrohead" | '''ReadMagneticFieldRaw'''
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| colspan="2" | Reads the magnetic field from the last succesful data read. 
| colspan="2" | Reads the magnetic field from the last succesful data read. 
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''ReadMagneticFieldReal'''
| width="90%" class="mtx-class-macrohead" | '''ReadMagneticFieldReal'''
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| colspan="2" | Reads the magnetic field from the last succesful data read as a float in Oersted Oe. 
| colspan="2" | Reads the magnetic field from the last succesful data read as a float in Oersted Oe. 
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''ReadStatus'''
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| colspan="2" | Reads the status byte from the sensor IC. Bit 6 = Voltage OK Bit 5 = Busy Bit 2 = Memory Error Bit 0 = Saturation 
| colspan="2" | Reads the status byte from the sensor IC. Bit 6 = Voltage OK Bit 5 = Busy Bit 2 = Memory Error Bit 0 = Saturation 
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''ReadTemperatureRaw'''
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| colspan="2" | Reads the temperature from the last succesful data read. 
| colspan="2" | Reads the temperature from the last succesful data read. 
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| colspan="2" | Reads the temperature from the last succesful data read as an float in degrees C. 
| colspan="2" | Reads the temperature from the last succesful data read as an float in degrees C. 
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''RequestData'''
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| colspan="2" | Requests temperature and magnetic data from the device, returns status. Bit 6 = Voltage OK Bit 5 = Busy Bit 2 = Memory Error Bit 0 = Saturation 
| colspan="2" | Requests temperature and magnetic data from the device, returns status. Bit 6 = Voltage OK Bit 5 = Busy Bit 2 = Memory Error Bit 0 = Saturation 
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''SetAddress'''
| width="90%" class="mtx-class-macrohead" | '''SetAddress'''
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| colspan="2" | Configures the device address used to communicate with sensor IC. Optionally writes the new address to the sensor IC NVM.  
| colspan="2" | Configures the device address used to communicate with sensor IC. Optionally writes the new address to the sensor IC NVM.  
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''WriteCommand'''
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| colspan="2" | Sends a command to the sensor IC. 
| colspan="2" | Sends a command to the sensor IC. 
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| colspan="2" | Writes a 16-bit value to the specified memory location 
| colspan="2" | Writes a 16-bit value to the specified memory location 
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Properties'''  
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| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Sensor Properties
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| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | I2C Properties
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| colspan="2" | Baud rate to be used 
| colspan="2" | Baud rate to be used 
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| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Threshold Output
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| colspan="2" | Threshold 2 value. If Thresh1 > Thresh2  1: Measurement > Thresh1 OR Measurement < Thresh2  0: Thresh1 > Measurement > Thresh2 If Thresh2 > Thresh1  1: Thresh1 > Measurement > Thresh2  0: Measurement > Thresh2 OR Measurement < Thresh1 &nbsp;
| colspan="2" | Threshold 2 value. If Thresh1 > Thresh2  1: Measurement > Thresh1 OR Measurement < Thresh2  0: Thresh1 > Measurement > Thresh2 If Thresh2 > Thresh1  1: Thresh1 > Measurement > Thresh2  0: Measurement > Thresh2 OR Measurement < Thresh1 &nbsp;
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Latest revision as of 14:37, 13 July 2026

Author Matrix TSL
Version 1.0
Category Movement Orientation


Magnetometer (SM324) component

SM324 ultraprecise 24-bit smart magnetometer capable of distance measurement using a magnet. Controlled via I2C bus communications.

Component Source Code

Please click here to download the component source project: FC_Comp_Source_Magnetometer_SM324.fcfx

Please click here to view the component source code (Beta): FC_Comp_Source_Magnetometer_SM324.fcfx

Detailed description

No detailed description exists yet for this component

Examples

No additional examples







Macro reference

Initialise

Initialise
Sets up the I2C bus ready to communicate with the sensor IC. Sets the address variable back to the Address property value. 
- VOID Return


ReadMagneticFieldRaw

ReadMagneticFieldRaw
Reads the magnetic field from the last succesful data read. 
- LONG Return


ReadMagneticFieldReal

ReadMagneticFieldReal
Reads the magnetic field from the last succesful data read as a float in Oersted Oe. 
- LONG Return


ReadStatus

ReadStatus
Reads the status byte from the sensor IC. Bit 6 = Voltage OK Bit 5 = Busy Bit 2 = Memory Error Bit 0 = Saturation 
- BYTE Return


ReadTemperatureRaw

ReadTemperatureRaw
Reads the temperature from the last succesful data read. 
- LONG Return


ReadTemperatureReal

ReadTemperatureReal
Reads the temperature from the last succesful data read as an float in degrees C. 
- FLOAT Return


RequestData

RequestData
Requests temperature and magnetic data from the device, returns status. Bit 6 = Voltage OK Bit 5 = Busy Bit 2 = Memory Error Bit 0 = Saturation 
- BYTE Return


SetAddress

SetAddress
Configures the device address used to communicate with sensor IC. Optionally writes the new address to the sensor IC NVM.  
- BYTE Address
The new address of the sensor IC, Range 8-127 
- BOOL WriteToIC
Writes the new address to the IC NVM 1=Write, 0=Don't Write 
- VOID Return


WriteCommand

WriteCommand
Sends a command to the sensor IC. 
- BYTE Command
 
- VOID Return


WriteMemory

WriteMemory
Writes a 16-bit value to the specified memory location 
- BYTE Address
Internal memory address 
- UINT Value
 
- VOID Return


Property reference

Properties
Sensor Properties
Cyclic Mode
 
I2C Properties
Channel
Channel selection 
Address
Address of the SM324 IC, Default address is 16. Valid Address range = 8 to 127 
SDA
Pin used for SDA (data signal) 
SDA Remap Pin
 
SCL
Pin used for SCL (clock signal) 
SCL Remap Pin
 
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.  
Baud Select
Baud rate option selector 
Baud Rate
Baud rate to be used 
Threshold Output
Threshold Pin
The pins used to check the DOUT pin on the SM324, 
Threshold Setting
Controls the function of the sensor IC DOUT pin. 
Threshold1
Threshold 1 Value 
Threshold2
Threshold 2 value. If Thresh1 > Thresh2 1: Measurement > Thresh1 OR Measurement < Thresh2 0: Thresh1 > Measurement > Thresh2 If Thresh2 > Thresh1 1: Thresh1 > Measurement > Thresh2 0: Measurement > Thresh2 OR Measurement < Thresh1  
Simulation
Simulate Comms
 
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