public static void TestAnalogIn(ArduinoBoard board)
{
// Use Pin 6
const int gpio = 6;
int analogPin = GetAnalogPin1(board);
var gpioController = board.CreateGpioController();
var analogController = board.CreateAnalogController(0);
var pin = analogController.OpenPin(analogPin);
gpioController.OpenPin(gpio);
gpioController.SetPinMode(gpio, PinMode.Output);
Console.WriteLine("Blinking GPIO6, based on analog input.");
while (!Console.KeyAvailable)
{
ElectricPotential voltage = pin.ReadVoltage();
gpioController.Write(gpio, PinValue.High);
Thread.Sleep((int)(voltage * 100).Volts);
voltage = pin.ReadVoltage();
gpioController.Write(gpio, PinValue.Low);
Thread.Sleep((int)(voltage * 100).Volts);
}
pin.Dispose();
Console.ReadKey();
analogController.Dispose();
gpioController.Dispose();
}
public static void TestAnalogCallback(ArduinoBoard board)
{
int analogPin = GetAnalogPin1(board);
var analogController = board.CreateAnalogController(0);
board.SetAnalogPinSamplingInterval(TimeSpan.FromMilliseconds(10));
var pin = analogController.OpenPin(analogPin);
pin.EnableAnalogValueChangedEvent(null, 0);
pin.ValueChanged += (sender, args) =>
{
if (args.PinNumber == analogPin)
{
Console.WriteLine($"New voltage: {args.Value}.");
}
};
Console.WriteLine("Waiting for changes on the analog input");
while (!Console.KeyAvailable)
{
// Nothing to do
Thread.Sleep(100);
}
Console.ReadKey();
pin.DisableAnalogValueChangedEvent();
pin.Dispose();
analogController.Dispose();
}
public static void TestEventsCallback(ArduinoBoard board)
{
const int Gpio2 = 2;
var gpioController = board.CreateGpioController();
// Opening GPIO2
gpioController.OpenPin(Gpio2);
gpioController.SetPinMode(Gpio2, PinMode.Input);
Console.WriteLine("Setting up events on GPIO2 for rising and falling");
gpioController.RegisterCallbackForPinValueChangedEvent(Gpio2, PinEventTypes.Falling | PinEventTypes.Rising, MyCallback);
Console.WriteLine("Event setup, press a key to remove the falling event");
while (!Console.KeyAvailable)
{
// Nothing to do
Thread.Sleep(100);
}
Console.ReadKey();
gpioController.UnregisterCallbackForPinValueChangedEvent(Gpio2, MyCallback);
gpioController.RegisterCallbackForPinValueChangedEvent(Gpio2, PinEventTypes.Rising, MyCallback);
Console.WriteLine("Now only waiting for rising events, press a key to remove all events and quit");
while (!Console.KeyAvailable)
{
// Nothing to do
Thread.Sleep(100);
}
Console.ReadKey();
gpioController.UnregisterCallbackForPinValueChangedEvent(Gpio2, MyCallback);
gpioController.Dispose();
}
public static void TestSpi(ArduinoBoard board)
{
const double vssValue = 5; // Set this to the supply voltage of the arduino. Most boards have 5V, some newer ones run at 3.3V.
SpiConnectionSettings settings = new SpiConnectionSettings(0, 10);
using (var spi = board.CreateSpiDevice(settings))
using (Mcp3008 mcp = new Mcp3008(spi))
{
Console.WriteLine("SPI Device open");
while (!Console.KeyAvailable)
{
double vdd = mcp.Read(5);
double vss = mcp.Read(6);
double middle = mcp.Read(7);
Console.WriteLine($"Raw values: VSS {vss} VDD {vdd} Average {middle}");
vdd = vssValue * vdd / 1024;
vss = vssValue * vss / 1024;
middle = vssValue * middle / 1024;
Console.WriteLine($"Converted values: VSS {vss:F2}V, VDD {vdd:F2}V, Average {middle:F2}V");
Thread.Sleep(200);
}
}
Console.ReadKey();
}
private static void TestPwm(ArduinoBoard board)
{
int pin = 6;
using (var pwm = board.CreatePwmChannel(0, pin, 100, 0))
{
Console.WriteLine("Now dimming LED. Press any key to exit");
while (!Console.KeyAvailable)
{
pwm.Start();
for (double fadeValue = 0; fadeValue <= 1.0; fadeValue += 0.05)
{
// sets the value (range from 0 to 255):
pwm.DutyCycle = fadeValue;
// wait for 30 milliseconds to see the dimming effect
Thread.Sleep(30);
}
// fade out from max to min in increments of 5 points:
for (double fadeValue = 1.0; fadeValue >= 0; fadeValue -= 0.05)
{
// sets the value (range from 0 to 255):
pwm.DutyCycle = fadeValue;
// wait for 30 milliseconds to see the dimming effect
Thread.Sleep(30);
}
}
Console.ReadKey();
pwm.Stop();
}
}
public static void TestEventsDirectWait(ArduinoBoard board)
{
const int Gpio2 = 2;
var gpioController = board.CreateGpioController();
// Opening GPIO2
gpioController.OpenPin(Gpio2);
gpioController.SetPinMode(Gpio2, PinMode.Input);
Console.WriteLine("Waiting for both falling and rising events");
while (!Console.KeyAvailable)
{
var res = gpioController.WaitForEvent(Gpio2, PinEventTypes.Falling | PinEventTypes.Rising, new TimeSpan(0, 0, 0, 0, 50));
if ((!res.TimedOut) && (res.EventTypes != PinEventTypes.None))
{
Console.WriteLine($"Event on GPIO {Gpio2}, event type: {res.EventTypes}");
}
}
Console.ReadKey();
Console.WriteLine("Waiting for only rising events");
while (!Console.KeyAvailable)
{
var res = gpioController.WaitForEvent(Gpio2, PinEventTypes.Rising, new TimeSpan(0, 0, 0, 0, 50));
if ((!res.TimedOut) && (res.EventTypes != PinEventTypes.None))
{
MyCallback(gpioController, new PinValueChangedEventArgs(res.EventTypes, Gpio2));
}
}
gpioController.Dispose();
}
public void TestStreamIsReadWrite()
{
_streamMock = new Mock <Stream>();
_streamMock.Setup(x => x.CanRead).Returns(true);
_streamMock.Setup(x => x.CanWrite).Returns(false);
var board = new ArduinoBoard(_streamMock.Object);
Assert.Throws <NotSupportedException>(() => board.FirmataVersion);
}
public static void TestDht(ArduinoBoard board)
{
Console.WriteLine("Reading DHT11. Any key to quit.");
while (!Console.KeyAvailable)
{
if (board.TryReadDht(3, 11, out var temperature, out var humidity))
{
Console.WriteLine($"Temperature: {temperature}, Humidity {humidity}");
}
public static void Main(string[] args)
{
if (args.Length == 0)
{
Console.WriteLine("Usage: Arduino.sample <PortName>");
Console.WriteLine("i.e.: Arduino.sample COM4");
return;
}
string portName = args[0];
var loggerFactory = LoggerFactory.Create(builder =>
{
builder.AddConsole();
});
// Statically register our factory. Note that this must be done before instantiation of any class that wants to use logging.
LogDispatcher.LoggerFactory = loggerFactory;
using (var port = new SerialPort(portName, 115200))
{
Console.WriteLine($"Connecting to Arduino on {portName}");
try
{
port.Open();
}
catch (UnauthorizedAccessException x)
{
Console.WriteLine($"Could not open COM port: {x.Message} Possible reason: Arduino IDE connected or serial console open");
return;
}
ArduinoBoard board = new ArduinoBoard(port.BaseStream);
try
{
// This implicitly connects
Console.WriteLine($"Connecting... Firmware version: {board.FirmwareVersion}, Builder: {board.FirmwareName}");
while (Menu(board))
{
}
}
catch (TimeoutException x)
{
Console.WriteLine($"No answer from board: {x.Message} ");
}
finally
{
port.Close();
board?.Dispose();
}
}
}
public void InitializeWithStreamNoConnection()
{
var streamMock = new Mock <Stream>(MockBehavior.Strict);
streamMock.Setup(x => x.WriteByte(255));
streamMock.Setup(x => x.WriteByte(249));
streamMock.Setup(x => x.Flush());
streamMock.Setup(x => x.CanRead).Returns(true);
streamMock.Setup(x => x.CanWrite).Returns(true);
streamMock.Setup(x => x.Close());
var board = new ArduinoBoard(streamMock.Object);
Assert.Throws <TimeoutException>(() => board.FirmataVersion);
}
public CharacterDisplay(ArduinoBoard board)
{
_controller = board.CreateGpioController();
_display = new Lcd1602(8, 9, new int[] { 4, 5, 6, 7 }, -1, 1.0f, -1, _controller);
_display.BlinkingCursorVisible = false;
_display.UnderlineCursorVisible = false;
_display.Clear();
_textController = new LcdConsole(_display, "SplC780", false);
_textController.Clear();
LcdCharacterEncodingFactory f = new LcdCharacterEncodingFactory();
var cultureEncoding = f.Create(CultureInfo.CurrentCulture, "SplC780", '?', _display.NumberOfCustomCharactersSupported);
_textController.LoadEncoding(cultureEncoding);
}
private static int GetFirstAnalogPin(ArduinoBoard board)
{
int analogPin = 14;
foreach (var pin in board.SupportedPinConfigurations)
{
if (pin.AnalogPinNumber == 0)
{
analogPin = pin.Pin;
break;
}
}
return(analogPin);
}
public static void Main(string[] args)
{
if (args.Length == 0)
{
Console.WriteLine("Usage: Arduino.sample <PortName>");
Console.WriteLine("i.e.: Arduino.sample COM4");
return;
}
string portName = args[0];
using (var port = new SerialPort(portName, 115200))
{
Console.WriteLine($"Connecting to Arduino on {portName}");
try
{
port.Open();
}
catch (UnauthorizedAccessException x)
{
Console.WriteLine($"Could not open COM port: {x.Message} Possible reason: Arduino IDE connected or serial console open");
return;
}
ArduinoBoard board = new ArduinoBoard(port.BaseStream);
try
{
board.LogMessages += BoardOnLogMessages;
// This implicitly connects
Console.WriteLine($"Connecting... Firmware version: {board.FirmwareVersion}, Builder: {board.FirmwareName}");
while (Menu(board))
{
}
}
catch (TimeoutException x)
{
Console.WriteLine($"No answer from board: {x.Message} ");
}
finally
{
port.Close();
board?.Dispose();
}
}
}
public static void TestDht(ArduinoBoard board)
{
Console.WriteLine("Reading DHT11. Any key to quit.");
DhtSensor?handler = board.GetCommandHandler <DhtSensor>();
if (handler == null)
{
Console.WriteLine("DHT Command handler not available.");
return;
}
while (!Console.KeyAvailable)
{
// Read from DHT11 at pin 3
if (handler.TryReadDht(3, 11, out var temperature, out var humidity))
{
Console.WriteLine($"Temperature: {temperature}, Humidity {humidity}");
}
private static void TestFrequency(ArduinoBoard board)
{
Console.Write("Which pin number to use? ");
string?input = Console.ReadLine();
if (input == null)
{
return;
}
if (!int.TryParse(input, out int pin))
{
return;
}
FrequencySensor?sensor = board.GetCommandHandler <FrequencySensor>();
if (sensor == null)
{
Console.WriteLine("Frequency handling software module missing");
return;
}
try
{
sensor.EnableFrequencyReporting(pin, FrequencyMode.Rising, 500);
while (!Console.KeyAvailable)
{
var f = sensor.GetMeasuredFrequency();
Console.Write($"\rFrequency at GPIO{pin}: {f} ");
Thread.Sleep(100);
}
}
finally
{
sensor.DisableFrequencyReporting(pin);
}
Console.ReadKey(true);
Console.WriteLine();
}
private static void ScanDeviceAddressesOnI2cBus(ArduinoBoard board)
{
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.Append(" 0 1 2 3 4 5 6 7 8 9 a b c d e f");
stringBuilder.Append(Environment.NewLine);
for (int startingRowAddress = 0; startingRowAddress < 128; startingRowAddress += 16)
{
stringBuilder.Append($"{startingRowAddress:x2}: "); // Beginning of row.
for (int rowAddress = 0; rowAddress < 16; rowAddress++)
{
int deviceAddress = startingRowAddress + rowAddress;
// Skip the unwanted addresses.
if (deviceAddress < 0x3 || deviceAddress > 0x77)
{
stringBuilder.Append(" ");
continue;
}
var connectionSettings = new I2cConnectionSettings(0, deviceAddress);
using (var i2cDevice = board.CreateI2cDevice(connectionSettings))
{
try
{
i2cDevice.ReadByte(); // Only checking if device is present.
stringBuilder.Append($"{deviceAddress:x2} ");
}
catch
{
stringBuilder.Append("-- ");
}
}
}
stringBuilder.Append(Environment.NewLine);
}
Console.WriteLine(stringBuilder.ToString());
}
public FirmataTestFixture()
{
try
{
var loggerFactory = LoggerFactory.Create(builder =>
{
builder.AddConsole().AddProvider(new DebuggerOutputLoggerProvider());
});
// Statically register our factory. Note that this must be done before instantiation of any class that wants to use logging.
LogDispatcher.LoggerFactory = loggerFactory;
_socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
_socket.Connect(IPAddress.Loopback, 27016);
_socket.NoDelay = true;
_networkStream = new NetworkStream(_socket, true);
Board = new ArduinoBoard(_networkStream);
if (!(Board.FirmataVersion > new Version(1, 0)))
{
// Actually not expecting to get here (but the above will throw a SocketException if the remote end is not there)
throw new NotSupportedException("Very old firmware found");
}
return;
}
catch (SocketException)
{
Console.WriteLine("Unable to connect to simulator, trying hardware...");
}
if (!ArduinoBoard.TryFindBoard(SerialPort.GetPortNames(), new List <int>()
{
115200
}, out var board))
{
Board = null;
return;
}
Board = board;
}
/// <summary>
/// Main entry point
/// </summary>
/// <param name="args">The first argument gives the Port name. Default "COM4"</param>
public static void Main(string[] args)
{
string portName = "COM4";
if (args.Length > 0)
{
portName = args[0];
}
using (var port = new SerialPort(portName, 115200))
{
Console.WriteLine($"Connecting to Arduino on {portName}");
try
{
port.Open();
}
catch (UnauthorizedAccessException x)
{
Console.WriteLine($"Could not open COM port: {x.Message} Possible reason: Arduino IDE connected or serial console open");
return;
}
ArduinoBoard board = new ArduinoBoard(port.BaseStream);
try
{
board.LogMessages += BoardOnLogMessages;
Console.WriteLine($"Firmware version: {board.FirmwareVersion}, Builder: {board.FirmwareName}");
DisplayModes(board);
}
catch (TimeoutException x)
{
Console.WriteLine($"No answer from board: {x.Message} ");
}
finally
{
port.Close();
board?.Dispose();
}
}
}
public static void TestInput(ArduinoBoard board)
{
const int gpio = 2;
var gpioController = board.CreateGpioController();
// Opening GPIO2
gpioController.OpenPin(gpio);
gpioController.SetPinMode(gpio, PinMode.Input);
if (gpioController.GetPinMode(gpio) != PinMode.Input)
{
throw new InvalidOperationException("Couldn't set pin mode");
}
Console.WriteLine("Polling input pin 2");
var lastState = gpioController.Read(gpio);
while (!Console.KeyAvailable)
{
var newState = gpioController.Read(gpio);
if (newState != lastState)
{
if (newState == PinValue.High)
{
Console.WriteLine("Button pressed");
}
else
{
Console.WriteLine("Button released");
}
}
lastState = newState;
Thread.Sleep(10);
}
Console.ReadKey();
gpioController.Dispose();
}
private static void ConnectWithStream(Stream stream)
{
ArduinoBoard board = new ArduinoBoard(stream);
try
{
Console.WriteLine(
$"Connection successful. Firmware version: {board.FirmwareVersion}, Builder: {board.FirmwareName}");
while (Menu(board))
{
}
}
catch (TimeoutException x)
{
Console.WriteLine($"No answer from board: {x.Message} ");
}
finally
{
stream.Close();
board?.Dispose();
}
}
public static void TestGpio(ArduinoBoard board)
{
// Use Pin 6
const int gpio = 6;
var gpioController = board.CreateGpioController();
// Opening GPIO2
gpioController.OpenPin(gpio);
gpioController.SetPinMode(gpio, PinMode.Output);
Console.WriteLine("Blinking GPIO6");
while (!Console.KeyAvailable)
{
gpioController.Write(gpio, PinValue.High);
Thread.Sleep(500);
gpioController.Write(gpio, PinValue.Low);
Thread.Sleep(500);
}
Console.ReadKey();
gpioController.Dispose();
}
private static void TestI2c(ArduinoBoard board)
{
var device = board.CreateI2cDevice(new I2cConnectionSettings(0, Bmp280.DefaultI2cAddress));
var bmp = new Bmp280(device);
bmp.StandbyTime = StandbyTime.Ms250;
bmp.SetPowerMode(Bmx280PowerMode.Normal);
Console.WriteLine("Device open");
while (!Console.KeyAvailable)
{
bmp.TryReadTemperature(out var temperature);
bmp.TryReadPressure(out var pressure);
Console.Write($"\rTemperature: {temperature.DegreesCelsius:F2}°C. Pressure {pressure.Hectopascals:F1} hPa ");
Thread.Sleep(100);
}
bmp.Dispose();
device.Dispose();
Console.ReadKey();
Console.WriteLine();
}
public ArduinoBoard OpenArduino(string port)
{
if (_boards.ContainsKey(port))
{
throw new ArgumentException("Port wurde schon hinzugefügt.");
}
SerialPort serialport = new SerialPort(port, 9600);
serialport.Open();
ArduinoBoard board = new ArduinoBoard(port, serialport.BaseStream);
board.Start();
_boards.Add(port, board);
return(board);
}
public FirmataTestFixture()
{
try
{
_socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
_socket.Connect(IPAddress.Loopback, 27016);
_socket.NoDelay = true;
_networkStream = new NetworkStream(_socket, true);
Board = new ArduinoBoard(_networkStream);
if (!(Board.FirmataVersion > new Version(1, 0)))
{
// Actually not expecting to get here (but the above will throw a SocketException if the remote end is not there)
throw new NotSupportedException("Very old firmware found");
}
Board.LogMessages += (x, y) => Console.WriteLine(x);
return;
}
catch (SocketException)
{
Console.WriteLine("Unable to connect to simulator, trying hardware...");
}
if (!ArduinoBoard.TryFindBoard(SerialPort.GetPortNames(), new List <int>()
{
115200
}, out var board))
{
Board = null;
return;
}
Board = board;
Board.LogMessages += (x, y) => Console.WriteLine(x);
}
public static void DisplayModes(ArduinoBoard board)
{
const int Gpio2 = 2;
const int MaxMode = 10;
Length stationAltitude = Length.FromMeters(650);
int mode = 0;
var gpioController = board.CreateGpioController();
gpioController.OpenPin(Gpio2);
gpioController.SetPinMode(Gpio2, PinMode.Input);
CharacterDisplay disp = new CharacterDisplay(board);
Console.WriteLine("Display output test");
Console.WriteLine("The button on GPIO 2 changes modes");
Console.WriteLine("Press x to exit");
disp.Output.ScrollUpDelay = TimeSpan.FromMilliseconds(500);
AutoResetEvent buttonClicked = new AutoResetEvent(false);
void ChangeMode(object sender, PinValueChangedEventArgs pinValueChangedEventArgs)
{
mode++;
if (mode > MaxMode)
{
// Don't change back to 0
mode = 1;
}
buttonClicked.Set();
}
gpioController.RegisterCallbackForPinValueChangedEvent(Gpio2, PinEventTypes.Falling, ChangeMode);
var device = board.CreateI2cDevice(new I2cConnectionSettings(0, Bmp280.DefaultI2cAddress));
Bmp280?bmp;
try
{
bmp = new Bmp280(device);
bmp.StandbyTime = StandbyTime.Ms250;
bmp.SetPowerMode(Bmx280PowerMode.Normal);
}
catch (IOException)
{
bmp = null;
Console.WriteLine("BMP280 not available");
}
OpenHardwareMonitor hardwareMonitor = new OpenHardwareMonitor();
hardwareMonitor.EnableDerivedSensors();
TimeSpan sleeptime = TimeSpan.FromMilliseconds(500);
string modeName = string.Empty;
string previousModeName = string.Empty;
int firstCharInText = 0;
while (true)
{
if (Console.KeyAvailable && Console.ReadKey(true).KeyChar == 'x')
{
break;
}
// Default
sleeptime = TimeSpan.FromMilliseconds(500);
switch (mode)
{
case 0:
modeName = "Display ready";
disp.Output.ReplaceLine(1, "Button for mode");
// Just text
break;
case 1:
{
modeName = "Time";
disp.Output.ReplaceLine(1, DateTime.Now.ToLongTimeString());
sleeptime = TimeSpan.FromMilliseconds(200);
break;
}
case 2:
{
modeName = "Date";
disp.Output.ReplaceLine(1, DateTime.Now.ToShortDateString());
break;
}
case 3:
modeName = "Temperature / Barometric Pressure";
if (bmp != null && bmp.TryReadTemperature(out Temperature temp) && bmp.TryReadPressure(out Pressure p2))
{
Pressure p3 = WeatherHelper.CalculateBarometricPressure(p2, temp, stationAltitude);
disp.Output.ReplaceLine(1, string.Format(CultureInfo.CurrentCulture, "{0:s1} {1:s1}", temp, p3));
}
public void Close(ArduinoBoard board)
{
board.Close();
_boards.Remove(board.Port);
}
private static bool Menu(ArduinoBoard board)
{
Console.WriteLine("Hello I2C and GPIO on Arduino!");
Console.WriteLine("Select the test you want to run:");
Console.WriteLine(" 1 Run I2C tests with a BMP280");
Console.WriteLine(" 2 Run GPIO tests with a simple led blinking on GPIO6 port");
Console.WriteLine(" 3 Run polling button test on GPIO2");
Console.WriteLine(" 4 Run event wait test event on GPIO2 on Falling and Rising");
Console.WriteLine(" 5 Run callback event test on GPIO2");
Console.WriteLine(" 6 Run PWM test with a LED dimming on GPIO6 port");
Console.WriteLine(" 7 Blink the LED according to the input on A1");
Console.WriteLine(" 8 Read analog channel as fast as possible");
Console.WriteLine(" 9 Run SPI tests with an MCP3008 (experimental)");
Console.WriteLine(" 0 Detect all devices on the I2C bus");
Console.WriteLine(" H Read DHT11 Humidity sensor on GPIO 3 (experimental)");
Console.WriteLine(" X Exit");
var key = Console.ReadKey();
Console.WriteLine();
switch (key.KeyChar)
{
case '1':
TestI2c(board);
break;
case '2':
TestGpio(board);
break;
case '3':
TestInput(board);
break;
case '4':
TestEventsDirectWait(board);
break;
case '5':
TestEventsCallback(board);
break;
case '6':
TestPwm(board);
break;
case '7':
TestAnalogIn(board);
break;
case '8':
TestAnalogCallback(board);
break;
case '9':
TestSpi(board);
break;
case '0':
ScanDeviceAddressesOnI2cBus(board);
break;
case 'h':
case 'H':
TestDht(board);
break;
case 'x':
case 'X':
return(false);
}
return(true);
}
public ApiBehaviorTests()
{
_streamMock = new Mock <Stream>();
_board = new ArduinoBoard(_streamMock.Object);
}