private static void SetPwmMode(GpioPin pin)
{
if (!pin.IsInSoftPwmMode)
{
pin.StartSoftPwm(0, 30);
}
}
private void ConfigureGPIOs()
{
foreach (var lightPin in lightPins)
{
lightPin.Value.PinMode = GpioPinDriveMode.Output;
lightPin.Value.Write(GpioPinValue.Low);
}
//Read about pull-up and pull-down
//http://raspi.tv/2013/rpi-gpio-basics-6-using-inputs-and-outputs-together-with-rpi-gpio-pull-ups-and-pull-downs
doorbellPin.PinMode = GpioPinDriveMode.Input;
doorbellPin.InputPullMode = GpioPinResistorPullMode.PullDown;
doorlockPin.PinMode = GpioPinDriveMode.Input;
doorbellPin.InputPullMode = GpioPinResistorPullMode.PullDown;
alarmLedPin.PinMode = GpioPinDriveMode.Output;
alarmLedPin.Write(GpioPinValue.Low);
//https://raspberrypi.stackexchange.com/questions/53854/driving-pwm-output-frequency
//https://projects.drogon.net/raspberry-pi/wiringpi/software-pwm-library/
buzzerPin.PinMode = GpioPinDriveMode.Output;
buzzerPin.StartSoftPwm(0, 2);
//If you know how to properly configure hardware PWM, please send a pull request!
//The buzzer is already set to use GPIO1 (aka pin 12) which supports hardware PWM
//buzzerPin.PwmClockDivisor = 16; // 1.2 Mhz
//buzzerPin.PwmRange = 1200000 / 4000; // 4Khz
//buzzerPin.PwmMode = PwmMode.MarkSign;
//And now, how to start hardware PWM???
}
public FormStart()
{
InitializeComponent();
this.StartPosition = FormStartPosition.Manual;
this.Left = Top = 0;
this.Width = Screen.PrimaryScreen.WorkingArea.Width;
this.Height = Screen.PrimaryScreen.WorkingArea.Height;
this.KeyPreview = true;
_formOptions = new FormOptions(this);
_formUserManagement = new FormUserManagement(this, _formOptions);
// Query database and set state
// Check to see if there's at least one user in the database
if (User.GetAll().Count == 0)
{
_globalState = State.Uninitialized;
}
else
{
_globalState = State.Idle;
}
// Initialize Servo Code
if (IS_LINUX)
{
Pi.Init <BootstrapWiringPi>();
servo = (GpioPin)Pi.Gpio[13];
servo.PinMode = GpioPinDriveMode.Output;
servo.StartSoftPwm(0, 100);
// Assume lock is open and close it
lock_open = true;
close_lock();
}
// Update visibility of form components
UpdateComponents();
foreach (Control control in Controls)
{
control.MouseClick += OnAnyMouseClick;
}
// Close keypad upon selection of most components
foreach (Control control in Controls)
{
if (control != tbxPin && control != tbxUserPhone && control != btnClearTextBox &&
control != tbxUserName && control != tbxSecFactorPinOrCard)
{
control.MouseClick += keyboardClose_Leave;
}
}
this.MouseClick += keyboardClose_Leave;
// Initialize timer that refreshes the bluetooth device lists every 5 seconds
base.InitializeBTRefreshBTDeviceListsTimer();
}
public SoftwarePwmDriver(GpioPin pin)
{
Pin = pin;
if (Pin.Capabilities.Contains(PinCapability.PWM))
{
Console.WriteLine($"GPIO Pin {Pin.BcmPinNumber} supports hardware PWM mode but runs software mode");
}
Pin.PinMode = GpioPinDriveMode.Output;
pin.StartSoftPwm(0, PwmRange);
}
private void Initialize()
{
redPin.PinMode = GpioPinDriveMode.Output;
greenPin.PinMode = GpioPinDriveMode.Output;
bluePin.PinMode = GpioPinDriveMode.Output;
redPin.StartSoftPwm(0, 225);
greenPin.StartSoftPwm(0, 225);
bluePin.StartSoftPwm(0, 225);
}
public void Init()
{
_forwardPin.PinMode = GpioPinDriveMode.Output;
_backwardPin.PinMode = GpioPinDriveMode.Output;
// As we have a bit too much power for our motors, we set the pwm to 500 max but limit the range to 255 max
_pwmPin.StartSoftPwm(0, 500);
//_pwmPin.PinMode = GpioPinDriveMode.Output;
//_pwmPin.PinMode = GpioPinDriveMode.PwmOutput;
//_pwmPin.PwmMode = PwmMode.Balanced;
SetSpeed(0);
_sensorPin.PinMode = GpioPinDriveMode.Input;
_sensorPin.InputPullMode = GpioPinResistorPullMode.PullUp;
_sensorPin.RegisterInterruptCallback(EdgeDetection.RisingAndFallingEdges, this.SensorInterupt);
}
public override int Write(GpioChannel channel, byte data)
{
ValidateChannel(channel);
int pin = toPinId(channel.Pin);
GpioPin gpioPin = toGpioPin(channel.Pin);
switch (channel.Mode)
{
case GpioMode.Analog:
gpioPin.PinMode = GpioPinDriveMode.Output;
WiringPi.AnalogWrite(pin, (int)data);
break;
case GpioMode.Digital:
gpioPin.PinMode = GpioPinDriveMode.Output;
WiringPi.DigitalWrite(pin, data);
break;
case GpioMode.Pwm:
gpioPin.PinMode = GpioPinDriveMode.PwmOutput;
if (gpioPin.IsInSoftPwmMode)
{
gpioPin.StartSoftPwm(data, 255);
}
else
{
WiringPi.PwmWrite(pin, data);
}
break;
default:
throw new InvalidOperationException($"Invalid pin operation");
break;
}
return(1);
}
public void PwmCreate(int range, int initialValue = 0)
{
pin.StartSoftPwm(initialValue, range);
}
public void PwmCreate(int value, int range)
{
pin.StartSoftPwm(value, range);
}
