Posted by ddoodm on 24 August 2010 - 08:04 AM in Netduino 2 (and Netduino 1)

Posted by ddoodm on 23 August 2010 - 10:45 AM in Netduino 2 (and Netduino 1)

Posted by ddoodm on 22 August 2010 - 06:43 AM in Netduino 2 (and Netduino 1)

Posted by ddoodm on 21 August 2010 - 12:35 PM in Netduino 2 (and Netduino 1)

Have you tested it just with a volt meter with nothing connected?

Thanks for the suggestion, but other components don't seem to be the problem.

I isolated the Netduino from everything and tested it with a volt meter. Everything looks perfect. Identical to the Arduino (Apart from the Arduino giving out 4.97v, while the Netduino only gave 3.3v). However, when I tried my relay module on both the Arduino and Netduino (both isolated from everything), it worked 100% on the Arduino, but still not the Netduino. This ain't making sense at all... I have to wait 'til the morning to get some LEDs. I can't seem to find one anywhere.

A picture could be very helpful.

I think I'll record a video when I pick up that LED tomorrow. Not exactly sure what to take a photo of now I think about it.

Thanks again for the help! Really appreciate it.

Posted by ddoodm on 21 August 2010 - 10:02 AM in Netduino 2 (and Netduino 1)

Posted by ddoodm on 21 August 2010 - 07:15 AM in Netduino 2 (and Netduino 1)

Hey again everyone!

I've been trying to rebuild a few of my Arduino projects with the Netduino. However, I'm having problems with my digital I/O pins. Whenever I set any output pin to false (off), it doesn't disable the pin, but it seems to limit the output voltage of the pin to around 1.65v. I'm currently trying to control a DFRobot relay module which works perfectly with the Arduino, but when I try it with the Netduino, the indicator LED on the relay module just dims (doesn't go off) and I only hear a slight flicking noise from the relay when the LED dims (but it doesn't actually do anything). Here's my code (just sample code from the beginner video):

using System;
using System.Threading;
using Microsoft.SPOT;
using Microsoft.SPOT.Hardware;
using SecretLabs.NETMF.Hardware;
using SecretLabs.NETMF.Hardware.Netduino;

namespace NetduinoApplication1
{
    public class Program
    {
        public static void Main()
        {
            OutputPort Relay = new OutputPort(Pins.GPIO_PIN_D9, false);

            while (true)
            {
                LED.Write(true);
                Thread.Sleep(500);
                LED.Write(false);
                Thread.Sleep(500);
            }
        }

    }
}

PS: The same kind of thing happens when I use my Ping Ultrasonic sensor. However, the light stays on, and doesn't do anything.

Thanks for any help! I'd really appreciate it.

Posted by ddoodm on 19 August 2010 - 07:55 AM in Netduino 2 (and Netduino 1)

Posted by ddoodm on 19 August 2010 - 07:26 AM in Netduino 2 (and Netduino 1)

duration = pulseIn(pingPin, HIGH);