public override void Execute(I2cDevice i2CDevice)
{
i2CDevice.Write(GenerateRegisterSensorPackage());
byte[] buffer = new byte[9];
i2CDevice.Read(buffer);
ParseResponse(buffer);
}
public static void Write(I2cDevice device, byte reg, byte command, string exceptionMessage)
{
try
{
byte[] buffer = { reg, command };
device.Write(buffer);
}
catch (Exception exception)
{
throw new SensorException(exceptionMessage, exception);
}
}
public static bool Write(I2cDevice device, byte reg, byte command)
{
byte[] val = new byte[2];
val[0] = reg;
val[1] = command;
try {
device.Write(val);
return true;
} catch {
return false;
}
}
public async Task Initialize()
{
Debug.WriteLine("TCS34725::Initialize");
try
{
var settings = new I2cConnectionSettings(TCS34725_Address);
settings.BusSpeed = I2cBusSpeed.FastMode;
string aqs = I2cDevice.GetDeviceSelector(I2CControllerName);
var dis = await DeviceInformation.FindAllAsync(aqs);
colorSensor = await I2cDevice.FromIdAsync(dis[0].Id, settings);
// Now setup the LedControlPin
gpio = GpioController.GetDefault();
LedControlGPIOPin = gpio.OpenPin(LedControlPin);
LedControlGPIOPin.SetDriveMode(GpioPinDriveMode.Output);
}
catch (Exception e)
{
Debug.WriteLine("Exception: " + e.Message + "\n" + e.StackTrace);
throw;
}
}
/// <summary>
/// Displays the GPS data on the screen.
/// </summary>
/// <param name="device">The I2C device</param>
/// <param name="index">0 for Venus, 1 for Copernicus</param>
/// <param name="display">An array containing 4 text boxes - lat, lon, alt, vel</param>
private void GPSFetch(I2cDevice device, int index, params TextBlock[] display) {
byte[] data = new byte[17];
// Receive 17 bytes starting from lat register (0x10), where 0x30 is the second GPS
byte address = (byte)(((index == 0) ? 0x00 : 0x20) + 0x10);
device.WriteRead(new byte[] { address }, data);
// Convert all to correct types
double lat = BitConverter.ToInt32(data, 0) * 1E-6;
double lon = BitConverter.ToInt32(data, 4) * 1E-6;
double vel = BitConverter.ToInt16(data, 8) * 1E-1;
double head = BitConverter.ToInt16(data, 10) * 1E-1;
double alt = BitConverter.ToInt32(data, 12) * 1E-2;
int satellites = (int)data[16];
// Write to the screen
if (satellites > 0) {
display[0].Text = lat.ToString("F6");
display[1].Text = lon.ToString("F6");
display[2].Text = alt.ToString("F1");
display[3].Text = vel.ToString("F1");
} else {
display[0].Text = "NO FIX";
display[1].Text = satellites.ToString();
display[2].Text = "";
display[3].Text = "";
}
}
internal GoPiGo(I2cDevice device)
{
if (device == null) throw new ArgumentNullException(nameof(device));
DirectAccess = device;
_motorController = new MotorController(this);
_encoderController = new EncoderController(this);
}
public async Task Initialize()
{
Debug.WriteLine("PCA9685::Initialize");
try
{
var settings = new I2cConnectionSettings(PCA9685_Address);
settings.BusSpeed = I2cBusSpeed.FastMode;
string aqs = I2cDevice.GetDeviceSelector(I2CControllerName);
var dis = await DeviceInformation.FindAllAsync(aqs);
pca9685 = await I2cDevice.FromIdAsync(dis[0].Id, settings);
if (pca9685 == null)
{
Debug.WriteLine("PCA9685 failed to initialize");
}
await Begin();
setPWMFreq(60);
}
catch (Exception e)
{
Debug.WriteLine("Exception: " + e.Message + "\n" + e.StackTrace);
throw;
}
}
protected override void Dispose(bool disposing)
{
_winI2cDevice?.Dispose();
_winI2cDevice = null !;
base.Dispose(disposing);
}
//Method to initialize the BMP280 sensor
public async Task InitializeAsync()
{
Debug.WriteLine("BMP280::InitializeAsync");
try
{
//Instantiate the I2CConnectionSettings using the device address of the BMP280
var settings = new I2cConnectionSettings(Bmp280Address)
{
BusSpeed = I2cBusSpeed.FastMode
};
//Set the I2C bus speed of connection to fast mode
//Use the I2CBus device selector to create an advanced query syntax string
var aqs = I2cDevice.GetDeviceSelector(I2CControllerName);
//Use the Windows.Devices.Enumeration.DeviceInformation class to create a collection using the advanced query syntax string
var dis = await DeviceInformation.FindAllAsync(aqs);
//Instantiate the the BMP280 I2C device using the device id of the I2CBus and the I2CConnectionSettings
_bmp280 = await I2cDevice.FromIdAsync(dis[0].Id, settings);
//Check if device was found
if (_bmp280 == null)
{
Debug.WriteLine("Device not found");
}
}
catch (Exception e)
{
Debug.WriteLine("Exception: " + e.Message + "\n" + e.StackTrace);
throw;
}
}
public override void Dispose(bool disposing)
{
_winI2cDevice?.Dispose();
_winI2cDevice = null;
base.Dispose(disposing);
}
public async Task InitializeAsync()
{
var dis = await DeviceInformation.FindAllAsync(deviceSelector); /* Find the I2C bus controller device with our selector string */
Device = await I2cDevice.FromIdAsync(dis[0].Id, Settings); /* Create an I2cDevice with our selected bus controller and I2C settings */
await InitializeSensorAsync();
}
protected override Task DoSwitchOff()
{
RemoveDisposables(Device);
Device = null;
controller = null;
return(Task.CompletedTask);
}
/// <summary>
/// Initializes the I2C connection and channels.
/// </summary>
/// <returns>A <see cref="Task"/> instance which can be awaited on for completion.</returns>
public async Task Init()
{
if (SlaveAddress < 0) throw new Exception("Invalid SlaveAddress value configured. Please call the class constructor with a valid I2C bus slave address.");
Debug.WriteLine("Initializing PCA9685 against slave address {0}.", SlaveAddress);
string aqs = I2cDevice.GetDeviceSelector();
var i2cDevices = await DeviceInformation.FindAllAsync(aqs);
if (i2cDevices.Count == 0)
{
Debug.WriteLine("No I2C controllers were found on the system.");
return;
}
var settings = new I2cConnectionSettings(GeneralCallSlaveAddress);
settings.BusSpeed = I2cBusSpeed.FastMode;
GeneralCallDev = await I2cDevice.FromIdAsync(i2cDevices[0].Id, settings);
if (GeneralCallDev == null)
{
var errorMessage = string.Format(
"Slave address {0} on I2C Controller {1} is currently in use by another application.",
settings.SlaveAddress,
i2cDevices[0].Id);
throw new Exception(errorMessage);
}
SoftwareReset();
settings = new I2cConnectionSettings(SlaveAddress);
settings.BusSpeed = I2cBusSpeed.FastMode;
Dev = await I2cDevice.FromIdAsync(i2cDevices[0].Id, settings);
if (Dev == null)
{
var errorMessage = string.Format(
"Slave address {0} on I2C Controller {1} is currently in use by another application.",
settings.SlaveAddress,
i2cDevices[0].Id);
throw new Exception(errorMessage);
}
Debug.WriteLine("PCA9685 I2C channels created.");
SetAllChannelsDutyCycle(0.0f);
// Output drive mode is totem-pole not open drain
WriteReg(MODE2, OUTDRV);
// Turn-off oscillator and acknowledge All-Call transfers
WriteReg(MODE1, ALLCALL);
await Task.Delay(1);
byte mode1 = ReadReg(MODE1);
// Turn on oscillator
mode1 &= unchecked((byte)~SLEEP);
WriteReg(MODE1, mode1);
await Task.Delay(1);
Debug.WriteLine("PCA9685 initialization complete.");
}
public async void Init()
{
try
{
string aqs = I2cDevice.GetDeviceSelector(); /* Get a selector string that will return all I2C controllers on the system */
var dis = await DeviceInformation.FindAllAsync(aqs); /* Find the I2C bus controller device with our selector string */
var settings = new I2cConnectionSettings(I2CAddress)
{
BusSpeed = I2cBusSpeed.FastMode
};
_device = await I2cDevice.FromIdAsync(dis[0].Id, settings);
if (_device == null)
{
}
else
{
_isInited = true;
}
}
catch
{
_isInited = false;
throw;
}
}
private async Task StartScenarioAsync()
{
string i2cDeviceSelector = I2cDevice.GetDeviceSelector();
IReadOnlyList<DeviceInformation> devices = await DeviceInformation.FindAllAsync(i2cDeviceSelector);
// 0x40 was determined by looking at the datasheet for the HTU21D sensor.
var HTU21D_settings = new I2cConnectionSettings(0x40);
// If this next line crashes with an ArgumentOutOfRangeException,
// then the problem is that no I2C devices were found.
//
// If the next line crashes with Access Denied, then the problem is
// that access to the I2C device (HTU21D) is denied.
//
// The call to FromIdAsync will also crash if the settings are invalid.
//
// FromIdAsync produces null if there is a sharing violation on the device.
// This will result in a NullReferenceException in Timer_Tick below.
htu21dSensor = await I2cDevice.FromIdAsync(devices[0].Id, HTU21D_settings);
// Start the polling timer.
timer = new DispatcherTimer() { Interval = TimeSpan.FromMilliseconds(500) };
timer.Tick += Timer_Tick;
timer.Start();
}
public static UInt16 Read16Bits(I2cDevice device, byte reg, ByteOrder byteOrder, string exceptionMessage)
{
try
{
byte[] addr = { reg };
byte[] data = new byte[2];
device.WriteRead(addr, data);
switch (byteOrder)
{
case ByteOrder.BigEndian:
return (UInt16)((data[0] << 8) | data[1]);
case ByteOrder.LittleEndian:
return (UInt16)((data[1] << 8) | data[0]);
default:
throw new SensorException($"Unsupported byte order {byteOrder}");
}
}
catch (Exception exception)
{
throw new SensorException(exceptionMessage, exception);
}
}
public async void Run(IBackgroundTaskInstance taskInstance)
{
//
// TODO: Insert code to perform background work
//
// If you start any asynchronous methods here, prevent the task
// from closing prematurely by using BackgroundTaskDeferral as
// described in http://aka.ms/backgroundtaskdeferral
//
var deferral = taskInstance.GetDeferral();
var settings = new I2cConnectionSettings(I2C_ADDRESS);
settings.BusSpeed = I2cBusSpeed.FastMode;
var aqs = I2cDevice.GetDeviceSelector(); /* Get a selector string that will return all I2C controllers on the system */
var dis = await DeviceInformation.FindAllAsync(aqs); /* Find the I2C bus controller devices with our selector string */
_dht11 = await I2cDevice.FromIdAsync(dis[0].Id, settings); /* Create an I2cDevice with our selected bus controller and I2C settings */
await begin();
while (true)
{
var temp = await readTemperature();
var hum = await readHumidity();
Debug.WriteLine($"{temp} C & {hum}% humidity");
await Task.Delay(2000);
}
deferral.Complete();
}
public MMA8453(I2cDevice device) {
this.device = device;
this.write = new byte[1] { 0x01 };
this.read = new byte[6];
this.disposed = false;
this.device.Write(new byte[] { 0x2A, 0x01 });
}
internal RgbLcdDisplay(I2cDevice rgbDevice, I2cDevice textDevice)
{
if (rgbDevice == null) throw new ArgumentNullException(nameof(rgbDevice));
if (textDevice == null) throw new ArgumentNullException(nameof(textDevice));
RgbDirectAccess = rgbDevice;
TextDirectAccess = textDevice;
}
private void InitPyGlow(I2cDevice device)
{
device.Write(new byte[] { 0x00, 0x01 });
device.Write(new byte[] { 0x13, 0xFF });
device.Write(new byte[] { 0x14, 0xFF });
device.Write(new byte[] { 0x15, 0xFF });
ClearLeds(device);
}
//constructor
public SSD1603Controller(I2cDevice device, GpioPin pinReset = null)
{
_busType = BusTypes.I2C;
_i2cDevic = device;
_pinReset = pinReset;
Empty();
Debug.WriteLine(string.Format("SSD1603 controller on {0} created", _busType));
}
public async Task initializeAsync()
{
_device = await new I2CManager().initializeDevice(0x70);
write8(__HT16K33_REGISTER_SYSTEM_SETUP | 0x01, 0x00);
setBlinkRate(__HT16K33_BLINKRATE_OFF);
setBrightness(15);
clear();
}
protected Mb85rcvDevice(I2cDevice device, int size)
{
// Validate
if (device == null) throw new ArgumentNullException(nameof(device));
// Initialize members
Hardware = device;
Size = size;
}
public static bool Read(I2cDevice device, byte reg, byte[] data)
{
byte[] addr = new byte[1];
addr[0] = reg;
try {
device.WriteRead(addr, data);
return true;
} catch {
return false;
}
}
public async Task<bool> Init(int address)
{
if (_i2Cdevice != null)
{
return true;
}
_i2Cdevice = await I2CDeviceCache.GetDevice(address, "I2C1");
return _i2Cdevice != null;
}
public CY8C9560A(I2cDevice device, GpioPin interrupt) {
this.device = device;
this.interrupt = interrupt;
this.disposed = false;
this.interruptRegistrations = new Dictionary<Pin, Action<bool>>();
//this.shadowRegisters = new byte[0x2D - 0x08];
this.interrupt.ValueChanged += this.OnInterrupt;
//this.i2c.ReadRegisters(0x08, this.shadowRegisters);
}
public async void Run(IBackgroundTaskInstance taskInstance)
{
deferral = taskInstance.GetDeferral();
String aqs = I2cDevice.GetDeviceSelector("I2C1");
IReadOnlyList<DeviceInformation> dis = await DeviceInformation.FindAllAsync(aqs);
//Ox40 was determined by looking at the datasheet for the device
sensor = await I2cDevice.FromIdAsync(dis[0].Id, new I2cConnectionSettings(0x40));
timer = ThreadPoolTimer.CreatePeriodicTimer(Timer_Tick, TimeSpan.FromMilliseconds(500));
}
public async Task<bool> OpenConnection(string i2cMasterId)
{
//Establish I2C connection
__connection = await I2cDevice.FromIdAsync(i2cMasterId, new I2cConnectionSettings(this.__i2cAddress));
// soft reset
I2cTransferResult result = __connection.WritePartial(new byte[] { Registers.MPR121_SOFTRESET, 0x63 });
if (result.Status == I2cTransferStatus.SlaveAddressNotAcknowledged)
{
throw new Exception(string.Format("MPR121 at address {0} not responding.", this.__i2cAddress));
}
await Task.Delay(1);
writeRegister(Registers.MPR121_ECR, 0x0);
byte c = readRegister8(Registers.MPR121_CONFIG2);
if (c != 0x24) return false;
SetThresholds(12, 6);
//Section A Registers - Ref: AN3944, MPR121 Quick Start Guide
//This group of setting controls the filtering of the system when the data is greater than the baseline.
//Settings from Adafruit Libary.. Most probably callibrated for the Adafruit's MPR121 breakout board.
writeRegister(Registers.MPR121_MHDR, 0x01);
writeRegister(Registers.MPR121_NHDR, 0x01);
writeRegister(Registers.MPR121_NCLR, 0x0E);
writeRegister(Registers.MPR121_FDLR, 0x00);
//Section B Registers - Ref: AN3944, MPR121 Quick Start Guide
writeRegister(Registers.MPR121_MHDF, 0x01);
writeRegister(Registers.MPR121_NHDF, 0x05);
writeRegister(Registers.MPR121_NCLF, 0x01);
writeRegister(Registers.MPR121_FDLF, 0x00);
writeRegister(Registers.MPR121_NHDT, 0x00);
writeRegister(Registers.MPR121_NCLT, 0x00);
writeRegister(Registers.MPR121_FDLT, 0x00);
writeRegister(Registers.MPR121_DEBOUNCE, 0);
writeRegister(Registers.MPR121_CONFIG1, 0x10); // default, 16uA charge current
writeRegister(Registers.MPR121_CONFIG2, 0x20); // 0.5uS encoding, 1ms period
writeRegister(Registers.MPR121_ECR, 0x8F); // start with first 5 bits of baseline tracking
InitMPR121TouchInterrupt();
return true;
}
/* Initialization for I2C accelerometer */
private async void InitI2CAccel()
{
try
{
var settings = new I2cConnectionSettings(ACCEL_I2C_ADDR);
settings.BusSpeed = I2cBusSpeed.FastMode; /* 400KHz bus speed */
string aqs = I2cDevice.GetDeviceSelector(); /* Get a selector string that will return all I2C controllers on the system */
var dis = await DeviceInformation.FindAllAsync(aqs); /* Find the I2C bus controller devices with our selector string */
I2CAccel = await I2cDevice.FromIdAsync(dis[0].Id, settings); /* Create an I2cDevice with our selected bus controller and I2C settings */
if (I2CAccel == null)
{
Text_Status.Text = string.Format(
"Slave address {0} on I2C Controller {1} is currently in use by " +
"another application. Please ensure that no other applications are using I2C.",
settings.SlaveAddress,
dis[0].Id);
return;
}
}
catch (Exception ex)
{
Text_Status.Text = "I2C Initialization failed. Exception: " + ex.Message;
return;
}
/*
* Initialize the accelerometer:
*
* For this device, we create 2-byte write buffers:
* The first byte is the register address we want to write to.
* The second byte is the contents that we want to write to the register.
*/
byte[] WriteBuf_DataFormat = new byte[] { ACCEL_REG_DATA_FORMAT, 0x01 }; /* 0x01 sets range to +- 4Gs */
byte[] WriteBuf_PowerControl = new byte[] { ACCEL_REG_POWER_CONTROL, 0x08 }; /* 0x08 puts the accelerometer into measurement mode */
/* Write the register settings */
try
{
I2CAccel.Write(WriteBuf_DataFormat);
I2CAccel.Write(WriteBuf_PowerControl);
}
/* If the write fails display the error and stop running */
catch (Exception ex)
{
Text_Status.Text = "Failed to communicate with device: " + ex.Message;
return;
}
/* Now that everything is initialized, create a timer so we read data every 100mS */
periodicTimer = new Timer(this.TimerCallback, null, 0, 100);
}
private async void InitializeSystem()
{
// initialize I2C communications
try
{
string deviceSelector = I2cDevice.GetDeviceSelector(I2C_CONTROLLER_NAME);
var i2cDeviceControllers = await DeviceInformation.FindAllAsync(deviceSelector);
//Port expander controlling the Button Panel
var buttonPanelSettings = new I2cConnectionSettings(BUTTON_PANEL_I2C_ADDRESS);
buttonPanelSettings.BusSpeed = I2cBusSpeed.FastMode;
i2cButtonPanel = await I2cDevice.FromIdAsync(i2cDeviceControllers[0].Id, buttonPanelSettings);
//Port expander controlling the LCD Screen
var lcdSettings = new I2cConnectionSettings(LCD_SCREEN_I2C_ADDRESS);
lcdSettings.BusSpeed = I2cBusSpeed.FastMode;
i2cLcdScreen = await I2cDevice.FromIdAsync(i2cDeviceControllers[0].Id, lcdSettings);
Screen = new LcdScreen(i2cLcdScreen);
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("Exception: {0}", e.Message);
return;
}
// initialize I2C Port Expander registers
try
{
InitializeButtonPanel();
InitializeLcd();
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("Exception: {0}", e.Message);
return;
}
try
{
buttonStatusCheckTimer = new DispatcherTimer();
buttonStatusCheckTimer.Interval = TimeSpan.FromMilliseconds(BUTTON_STATUS_CHECK_TIMER_INTERVAL);
buttonStatusCheckTimer.Tick += ButtonStatusCheckTimer_Tick;
buttonStatusCheckTimer.Start();
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("Exception: {0}", e.Message);
return;
}
}
private async Task InitI2CDevice() {
try {
var settings = new I2cConnectionSettings(I2C_ADDRESS);
settings.BusSpeed = I2cBusSpeed.StandardMode;
string aqs = I2cDevice.GetDeviceSelector(I2C_CONTROLLER_NAME); /* Find the selector string for the I2C bus controller */
var dis = await DeviceInformation.FindAllAsync(aqs); /* Find the I2C bus controller device with our selector string */
I2CDevice = await I2cDevice.FromIdAsync(dis[0].Id, settings); /* Create an I2cDevice with our selected bus controller and I2C settings */
}
catch (Exception ex) {
throw new Exception("I2C Initialization Failed", ex);
}
}
public async Task InitializeAsync()
{
string selector = I2cDevice.GetDeviceSelector();
IReadOnlyList<DeviceInformation> i2cDevices = await DeviceInformation.FindAllAsync( selector );
I2cConnectionSettings connectionSettings = new I2cConnectionSettings( ARDUINO_ADDRESS );
this.arduino = await I2cDevice.FromIdAsync( i2cDevices[ 0 ].Id, connectionSettings );
if( this.arduino == null )
{
throw new InvalidOperationException( $"The I2C device on address {ARDUINO_ADDRESS} cannot be found or is currently in use by another application." );
}
}
private async Task I2cConnect() {
try {
var settings = new I2cConnectionSettings(I2C_ADDR);
settings.BusSpeed = I2cBusSpeed.FastMode;
string aqs = I2cDevice.GetDeviceSelector(I2C_CONTROLLER_NAME); /* Find the selector string for the I2C bus controller */
var dis = await DeviceInformation.FindAllAsync(aqs); /* Find the I2C bus controller device with our selector string */
i2cDevice = await I2cDevice.FromIdAsync(dis[0].Id, settings); /* Create an I2cDevice with our selected bus controller and I2C settings */
}
catch (Exception e) {
throw new Exception("ht16k33 initisation problem: " + e.Message);
}
}
protected override async Task DoSwitchOn()
{
controller = await I2cController.GetDefaultAsync();
ArgumentValidation.NonNull(controller, nameof(I2cController));
var connectionSettings = new I2cConnectionSettings(Address)
{
BusSpeed = BusSpeed,
SharingMode = SharingMode
};
Device = controller.GetDevice(connectionSettings);
AddDisposables(Device);
}
/// <summary>
/// Initializes new instance of Windows10I2cDevice that will use the specified settings to communicate with the I2C device.
/// </summary>
/// <param name="settings">The connection settings of a device on an I2C bus.</param>
public Windows10I2cDevice(I2cConnectionSettings settings)
{
_settings = settings;
var winSettings = new WinI2c.I2cConnectionSettings(settings.DeviceAddress);
string busFriendlyName = $"I2C{settings.BusId}";
string deviceSelector = WinI2c.I2cDevice.GetDeviceSelector(busFriendlyName);
DeviceInformationCollection deviceInformationCollection = DeviceInformation.FindAllAsync(deviceSelector).WaitForCompletion();
if (deviceInformationCollection.Count == 0)
{
throw new ArgumentException($"No I2C device exists for bus ID {settings.BusId}.", $"{nameof(settings)}.{nameof(settings.BusId)}");
}
_winI2cDevice = WinI2c.I2cDevice.FromIdAsync(deviceInformationCollection[0].Id, winSettings).WaitForCompletion();
if (_winI2cDevice == null)
{
throw new PlatformNotSupportedException($"I2C devices are not supported.");
}
}
