2 replies to this topic

[gartral]

So, I have my netduino 1 and it's running 4.2, I have all the framework and files in place, but I'm following the RBG Led tutorials and...

PWM pwm = new PWM(Pins.GPIO_PIN_D5);

tells me

 

Error  1  'Microsoft.SPOT.Hardware.PWM' does not contain a constructor that takes 1 arguments  C:UsersrazerAppDataLocalTemporary ProjectsNetduinoApplication1Program.cs  15  23  NetduinoApplication1  

 

 

What changed, and where in the mountains of documentation have I missed the memo?

[Chris Walker]

Hi gartral, .NET MF adds a new built-in PWM class, so you'll need to override and use the full namespace. Do this: 1. Add the "SecretLabs.NETMF.Hardware.PWM.dll" assembly as a reference to your project. 2. Change your code to use the full namespace:

SecretLabs.NETMF.Hardware.PWM pwm = new SecretLabs.NETMF.Hardware.PWM(Pins.GPIO_PIN_D5);

Does that get you up and running? Chris

[jrlyman3]

I found that most of the examples are for 4.1 and earlier.  I finally found an example for 4.2 and it looked like this:

// This puts a continuous signal on D5 with a 1mS pulse every 3 mS.const uint period = 3; // *1000 * 1000;    // 3 msconst uint duration = 1; // *1000 * 1000;  // 1 msPWM pwm = new PWM(PWMChannels.PWM_PIN_D5, period, duration, PWM.ScaleFactor.Milliseconds, false);pwm.Period = period;pwm.Start();

Hope this helps,

 

John