Component: Potentiometer (Sensors: EBM Modules)
| Author | Matrix TSL |
| Version | 1.1 (Release) |
| Category | Sensors: EBM Modules |
Contents
Potentiometer component
This board consists of a standard shaft rotary potentiometer that provides a linear voltage output ranging between the microcontroller power rails. This can be connected to an Analogue to Digital input of the microcontroller in order to provide a control value.
Examples
This example simply reads the value from the potentiometer sensor component and outputs the value to an LCD as a number in the range 0-255.
EBM002 Example
The ADC bit depth can be increased to 10 or 12 bit depending on your device by changing the Mode parameter to 1 in the ReadPotentiometer component macro.
Downloadable macro reference
ReadPotentiometer
Macro to read the potentiometer
Mode = 0 will return a byte
Mode = 1 will return an int
Parameters
- BOOL Mode
- 0 = return BYTE, 1 = return INT
Return value
Simulation macro reference
This component does not contain any simulation macros
Property reference
Channel 1
This property is of type Single analog pin and can be referenced with the variable name CHANNEL1.
No additional information
VRef voltage
This property is of type Signed integer and can be referenced with the variable name vrefvol.
+Vref voltage x 10mV
Default 500 = 5V
VRef option
This property is of type Fixed list of ints and can be referenced with the variable name vrefop.
Defines what is used as the ADC Vref source.
Conversion speed
This property is of type Fixed list of ints and can be referenced with the variable name convspd.
Clock setting to set how fast the ADC peripheral is driven.
Aquisition cycles
This property is of type Signed integer and can be referenced with the variable name actime.
Number of micro seconds to wait for the ACD input to charge before starting the analogue sample.
