Buenas

in the yesterday’s post I commented on an accessory to detect movements using. Net Gadgeteer . Today we will see how with a couple of lines of code more, we can activate the camera when motion is detected, you take a picture and show it in the graphic display.

For this example we will use

• Fez Spider Mainboard
  http://savecomm.net/p/53/fez-spider-starter-kit
• USB Client DP
  http://www.netmf.com/showcase.aspx?ShowcaseID=1 & id = 110
• PIR Module
  http://www.ghielectronics.com/catalog/product/357
• Display T35
  http://www.ghielectronics.com/catalog/product/276
• Camera
  http://www.ghielectronics.com/catalog/product/283

With the following diagram

And then in the code to see that

• When motion is detected tells the camera to take a photo (line 21)
• When the camera takes a photo, it is shown in the graphic display

   1: using System;

   2: using GT = Gadgeteer;

   3:  

   4: namespace GadgeteerApp15

   5: {

   6:     public partial class Program

   7:     {

   8:         void ProgramStarted()

   9:         {

  10:             motion_Sensor.Motion_Sensed += MotionSensorMotionSensed;

  11:             camera.PictureCaptured += CameraPictureCaptured;

  12:         }

  13:  

  14:         void CameraPictureCaptured(GT.Modules.GHIElectronics.Camera sender, GT.Picture picture)

  15:         {

  16:             display_T35.SimpleGraphics.DisplayImage(picture, 5, 5);

  17:         }

  18:  

  19:         void MotionSensorMotionSensed(GT.Modules.GHIElectronics.Motion_Sensor sender, GT.Modules.GHIElectronics.Motion_Sensor.Motion_SensorState state)

  20:         {

  21:             camera.TakePicture();

  22:         }

  23:     }

  24: }

In the next posts to see how to send this information to a processor of movements, and even… well as mount with a model client / server.

Saludos @ Home

El Bruno

Buenas

today’s example does not attempt to replace a Kinect, or much less. However shows us that with a small hardware little more than €12, can create a sensor’s movements when it detects movements, begin to record the input from a camera.

On this basis, we started with the following hardware for example, where we will see the simple which can be create a Motion Detector

• Fez Spider Mainboard
  http://savecomm.net/p/53/fez-spider-starter-kit
• USB Client DP
  http://www.netmf.com/showcase.aspx?ShowcaseID=1 & id = 110
• PIR Module
  http://www.ghielectronics.com/catalog/product/357

with these three elements, we connect the same guided by the following scheme

At this point, with the connected sensor we work with it is pretty simple.

Line 10 shows us that we have an event Motion_Sensed () that is activated when the sensor detects motion.

   1: using Gadgeteer.Modules.GHIElectronics;

   2: using Microsoft.SPOT;

   3:  

   4: namespace GadgeteerApp14

   5: {

   6:     public partial class Program

   7:     {

   8:         void ProgramStarted()

   9:         {

  10:             motion_Sensor.Motion_Sensed += MotionSensorMotionSensed;

  11:         }

  12:  

  13:         void MotionSensorMotionSensed(Motion_Sensor sender, Motion_Sensor.Motion_SensorState state)

  14:         {

  15:             Debug.Print("motion detected !");

  16:             // also check >> motion_Sensor.SensorStillActive

  17:         }

  18:     }

  19: }

Well, we can subscribe to this event or can change the focus and do a PULL of the status of the sensor. For this second case we check the Boolean value of the property SensorStillActive (line 15).

The sensor is quite small and has a range of about 7 meters according to official indications that we can readhere .

In the next post, add a camera and keep the contents of it on an SD card.

Saludos @ Home

El Bruno