ADC DAC Pi .Net Core Library

.Net Core Library to use with the ADC DAC Pi Raspberry Pi development boards.

Downloading and Installing the .Net Core Libraries

Download the zip archive containing the code demos and libaries from GitHub.

ADC DAC Pi Methods

ReadADCVoltage(byte channel)

Read the voltage from the selected channel on the ADC
Parameters: channel - 1 or 2
Returns: number as double between 0 and 3.3

ReadADCRaw(byte channel)

Read the raw value from the selected channel on the ADC
Parameters: channel - 1 or 2
Returns: Integer

SetDACVoltage(byte channel, double voltage)

Set the voltage for the selected channel on the DAC
Parameters: channel - 1 or 2, the voltage can be between 0 and 2.047 volts
Returns: null

SetDACRaw(byte channel, int value)

Set the raw value from the selected channel on the DAC
Parameters: channel - 1 or 2, value int between 0 and 4095
Returns: null

ADC DAC Pi Properties

double ADCReferenceVoltage {get; set;}

Gets or sets the reference voltage for the analogue to digital converter.
The ADC uses the raspberry pi 3.3V power as a reference so using this property to set the reference to match the exact output voltage from the 3.3V regulator will increase the accuracy of the ADC readings.

byte DACGain {get; set;}

Gets or Sets the gain for the DAC.
When gain = 1 the voltage range will be 0V to 2.047V
When gain = 2 the voltage range will be 0V to VCC which is typically 3.3V on a Raspberry Pi.

ADC DAC Pi Usage

To use the ADCDACPi library in your code you must first import the library DLL:

using ABElectronicsUK;

Next, you must initialise the ADCDACPi class:

ABElectronicsUK.ADCDACPi adcdac = new ABElectronicsUK.ADCDACPi();

Next, we need to connect to the device and wait for the connection

adcdac.Connect();

while (!adcdac.IsConnected){}

Set the reference voltage.

ADCReferenceVoltage = 3.3;

Read the voltage from channel 2

double value = adcdac.ReadADCVoltage(2);

Set the DAC voltage on channel 2 to 1.5 volts

adcdac.SetDACVoltage(2, 1.5);