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RBPi_code/builder_Z.ui

@@ -0,0 +1,387 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Generated with glade 3.20.0 -->
+<interface>
+  <requires lib="gtk+" version="3.0"/>
+  <object class="GtkAdjustment" id="adjustment2">
+    <property name="upper">1000</property>
+    <property name="step_increment">1</property>
+    <property name="page_increment">10</property>
+  </object>
+  <object class="GtkWindow" id="window">
+    <property name="visible">True</property>
+    <property name="can_focus">False</property>
+    <property name="border_width">10</property>
+    <property name="title">HomeScope Core</property>
+    <property name="resizable">False</property>
+    <property name="window_position">mouse</property>
+    <property name="gravity">east</property>
+    <child>
+      <object class="GtkGrid" id="grid">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="halign">start</property>
+        <child>
+          <object class="GtkButton" id="button_up">
+            <property name="label">gtk-go-up</property>
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="receives_default">False</property>
+            <property name="use_stock">True</property>
+            <property name="yalign">1</property>
+            <property name="always_show_image">True</property>
+          </object>
+          <packing>
+            <property name="left_attach">0</property>
+            <property name="top_attach">0</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkButton" id="button_down">
+            <property name="label">gtk-go-down</property>
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="receives_default">False</property>
+            <property name="margin_right">25</property>
+            <property name="use_stock">True</property>
+            <property name="yalign">1</property>
+            <property name="always_show_image">True</property>
+          </object>
+          <packing>
+            <property name="left_attach">2</property>
+            <property name="top_attach">0</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkImage" id="image1">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="pixbuf">biotexturas_logo_notext.tiff</property>
+          </object>
+          <packing>
+            <property name="left_attach">0</property>
+            <property name="top_attach">3</property>
+            <property name="width">3</property>
+            <property name="height">5</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkButton" id="quit">
+            <property name="label">gtk-quit</property>
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="receives_default">False</property>
+            <property name="use_stock">True</property>
+            <property name="yalign">0.47000002861022949</property>
+            <property name="always_show_image">True</property>
+          </object>
+          <packing>
+            <property name="left_attach">7</property>
+            <property name="top_attach">10</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkButton" id="button_stop">
+            <property name="label">gtk-stop</property>
+            <property name="visible">True</property>
+            <property name="can_focus">True</property>
+            <property name="receives_default">True</property>
+            <property name="use_stock">True</property>
+            <property name="yalign">1</property>
+            <property name="always_show_image">True</property>
+          </object>
+          <packing>
+            <property name="left_attach">1</property>
+            <property name="top_attach">0</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkImage" id="image2">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="pixbuf">biotexturas_logo_text.tiff</property>
+          </object>
+          <packing>
+            <property name="left_attach">0</property>
+            <property name="top_attach">10</property>
+            <property name="width">3</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkLabel" id="label1">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="label" translatable="yes">Z Stage control</property>
+          </object>
+          <packing>
+            <property name="left_attach">3</property>
+            <property name="top_attach">0</property>
+            <property name="width">2</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkSeparator" id="separator1">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="margin_top">5</property>
+            <property name="margin_bottom">5</property>
+          </object>
+          <packing>
+            <property name="left_attach">0</property>
+            <property name="top_attach">1</property>
+            <property name="width">5</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkSwitch" id="switch_video">
+            <property name="visible">True</property>
+            <property name="can_focus">True</property>
+          </object>
+          <packing>
+            <property name="left_attach">4</property>
+            <property name="top_attach">4</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkLabel" id="label2">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="label" translatable="yes">RaspiCAM control
+</property>
+          </object>
+          <packing>
+            <property name="left_attach">3</property>
+            <property name="top_attach">3</property>
+            <property name="width">2</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkButton" id="button_take_photo">
+            <property name="label" translatable="yes">Capture</property>
+            <property name="visible">True</property>
+            <property name="can_focus">True</property>
+            <property name="receives_default">True</property>
+          </object>
+          <packing>
+            <property name="left_attach">4</property>
+            <property name="top_attach">6</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkSeparator" id="separator2">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="margin_top">5</property>
+            <property name="margin_bottom">5</property>
+          </object>
+          <packing>
+            <property name="left_attach">0</property>
+            <property name="top_attach">9</property>
+            <property name="width">5</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkLabel" id="label3">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="label" translatable="yes">Video</property>
+          </object>
+          <packing>
+            <property name="left_attach">3</property>
+            <property name="top_attach">4</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkLabel" id="label4">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="label" translatable="yes">Image</property>
+          </object>
+          <packing>
+            <property name="left_attach">3</property>
+            <property name="top_attach">6</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkButton" id="button_about">
+            <property name="label">gtk-about</property>
+            <property name="visible">True</property>
+            <property name="can_focus">True</property>
+            <property name="receives_default">True</property>
+            <property name="use_stock">True</property>
+            <property name="always_show_image">True</property>
+          </object>
+          <packing>
+            <property name="left_attach">4</property>
+            <property name="top_attach">10</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkLabel">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="label" translatable="yes">0 V</property>
+          </object>
+          <packing>
+            <property name="left_attach">7</property>
+            <property name="top_attach">8</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkLabel">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="label" translatable="yes">LED</property>
+          </object>
+          <packing>
+            <property name="left_attach">7</property>
+            <property name="top_attach">0</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkLabel">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="label" translatable="yes">3.3 V</property>
+          </object>
+          <packing>
+            <property name="left_attach">7</property>
+            <property name="top_attach">2</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkScale" id="pwm_scale">
+            <property name="visible">True</property>
+            <property name="can_focus">True</property>
+            <property name="orientation">vertical</property>
+            <property name="adjustment">adjustment2</property>
+            <property name="inverted">True</property>
+            <property name="show_fill_level">True</property>
+            <property name="fill_level">1e+17</property>
+            <property name="round_digits">0</property>
+            <property name="digits">0</property>
+            <property name="draw_value">False</property>
+          </object>
+          <packing>
+            <property name="left_attach">7</property>
+            <property name="top_attach">3</property>
+            <property name="height">5</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkSeparator" id="separator3">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+          </object>
+          <packing>
+            <property name="left_attach">6</property>
+            <property name="top_attach">2</property>
+            <property name="height">7</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkSeparator" id="separator4">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+          </object>
+          <packing>
+            <property name="left_attach">6</property>
+            <property name="top_attach">0</property>
+          </packing>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+      </object>
+    </child>
+  </object>
+</interface>

RBPi_code/homescope_core.c

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+#include <gtk/gtk.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+
+// This is a global variable holding the PID of a child to be created when accessing
+// the camera with raspivid program
+// to be used in the start_video call back
+GPid pid;
+
+void set_gpio_modes(void)
+	{
+	/* We use 2 PINS to communicate Z axis changes to the Arduino */
+	/* DOWN - PIN, wPi n. 24 */
+  system("gpio mode 24 OUT");
+  system("gpio write 24 0");  // SET PIN @ LOW by Default
+
+	/* UP - PIN wPi n. 29 */
+	system("gpio mode 29 OUT");
+  system("gpio write 29 0"); // SET PIN @ LOW by Default
+
+	// Set the PWM pin and set it to zero
+	system("gpio mode 23 pwm");
+	system("gpio pwm 23 0");
+
+	/* Done with setting pins */
+	g_print("Finished setting up the GPIO PINs with gpio utility \n");
+	system("gpio readall");
+	}
+
+
+	// HERE GOES THE ABOUT DIALOG BOX For info at a website: lab wiki on the process
+static void show_about(GtkWidget *widget, gpointer user_data)
+	{
+	GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file("biotexturas_logo_text.tiff", NULL);
+	GtkWidget *dialog = gtk_about_dialog_new();
+	gtk_about_dialog_set_program_name(GTK_ABOUT_DIALOG(dialog),
+    "HomeScope Core");
+	gtk_about_dialog_set_version(GTK_ABOUT_DIALOG(dialog), "version 1.0");
+	gtk_about_dialog_set_copyright(GTK_ABOUT_DIALOG(dialog),"Biotexturas");
+	gtk_about_dialog_set_comments(GTK_ABOUT_DIALOG(dialog),
+     "HomeScope is a tool to explore collective intelligence under you own feet!");
+	gtk_about_dialog_set_website(GTK_ABOUT_DIALOG(dialog),
+     "http://homescope.biotexturas.org");
+	gtk_about_dialog_set_logo(GTK_ABOUT_DIALOG(dialog), pixbuf);
+	g_object_unref(pixbuf), pixbuf = NULL;
+	gtk_dialog_run(GTK_DIALOG (dialog));
+	gtk_widget_destroy(dialog);
+	}
+
+
+	// the call back needs this casting or it doesn't work properly
+static void start_video(GObject *switcher, GParamSpec *pspec, gpointer user_data)
+	{
+	if(gtk_switch_get_active(GTK_SWITCH(switcher)))
+		{
+    /* Here goes the code when the video swich is set ON */
+		g_print("Video streaming started...\n");
+		/* Argument vector to run as child process */
+		gchar *child_argv[] = {"/usr/bin/raspivid", "-t", "0", "-ex", "off", "-p", "10,-120,750,750" ,"-v", "-awb" ,"sun", NULL};
+		/* we need these also
+    (besides the global process ID to kill the video raspivid later...) */
+		gint stdout;
+		GError *error = NULL;
+		/* Now we spawn the child pricess to be handled with PID pid */
+		g_spawn_async(NULL, child_argv, NULL, G_SPAWN_DEFAULT, NULL, NULL, &pid, &error);
+		g_print("We have spawned a child process which pid is %i,"
+            "and we did from process %i which was in turn made from parent %i"
+            "(the running shell)\n", pid, getpid(),getppid());
+		}else
+			{
+      /* Here goes the code when the video swich is set OFF */
+			g_print("Video streaming stopped...\n");
+			/* For some wierd rason, the line bellow doesnt close the child process */
+			g_spawn_close_pid(pid);  // in UNIX doesn nieks, but could be useful in Windows
+			kill(pid, 9);  // so we kill the process UNIX-style
+			}
+	}
+
+
+/* not working properly...cannot recognize the switch... need to quit and kill raspivid if on */
+static void clean_up_b4_go(GtkWidget *widget, gpointer user_data)
+	{
+	if(gtk_switch_get_state(GTK_SWITCH(user_data))){kill(pid, 9);}
+	}
+
+
+static void take_picture(GtkWidget *widget, gpointer user_data)
+	{
+	if(gtk_switch_get_state(GTK_SWITCH(user_data)))
+		{
+		gtk_switch_set_state(GTK_SWITCH(user_data), FALSE);
+		system("raspistill -o open_scope_capture_picture.jpg -p 10,20,400,400 -v");
+		gtk_switch_set_state(GTK_SWITCH(user_data), TRUE);
+		}else{system("raspistill -o open_scope_capture_picture.jpg -p 10,20,400,400 -v");}
+	}
+
+
+static void move_up(GtkWidget *widget, gpointer user_data)
+	{
+	// LOW blue , HIGH purple goes up
+  g_print("Hello Open Scope: we are going up!\n");
+  system("gpio write 24 0");
+	system("gpio write 29 1");
+	}
+
+
+static void move_down(GtkWidget *widget, gpointer user_data)
+	{
+  	g_print("Hello Open Scope: we are going down!\n");
+  	system("gpio write 24 1");
+  	system("gpio write 29 0");
+	}
+
+
+ static void stop(GtkWidget *widget, gpointer user_data)
+	{
+	g_print("Hello Open Scope: we stop moving!\n");
+	system("gpio write 24 0");
+	system("gpio write 29 0");
+	}
+
+static void pwm_scale_moved(GtkRange *range, gpointer user_data)
+	{
+	gdouble pos = gtk_range_get_value(GTK_RANGE(range));
+	gint pwm_value;
+	pwm_value = (gint)pos;
+	gchar *str = g_strdup_printf("gpio pwm 23 %d", pwm_value);
+	system(str);
+	}
+
+
+int main(int  argc, char *argv[])
+  {
+  /* Notice here we use builder (GLADE) to generate the interface */
+  GtkBuilder *builder;
+
+  GObject *window;
+  GObject *button;
+  GObject *switcher;
+  GObject *scale;
+
+ 	gtk_init(&argc, &argv);
+
+	/* Construct a GtkBuilder instance and load our UI description */
+  builder = gtk_builder_new();
+  gtk_builder_add_from_file(builder, "builder_Z.ui", NULL);
+
+ 	/* Connect signal handlers to the constructed widgets. */
+  window = gtk_builder_get_object(builder, "window");
+  g_signal_connect(window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
+
+  button = gtk_builder_get_object(builder, "button_up");
+  g_signal_connect(button, "clicked", G_CALLBACK (move_up), NULL);
+
+  button = gtk_builder_get_object(builder, "button_down");
+  g_signal_connect(button, "clicked", G_CALLBACK (move_down), NULL);
+
+	button = gtk_builder_get_object(builder, "button_stop");
+	g_signal_connect(button, "clicked", G_CALLBACK(stop), NULL);
+
+	button = gtk_builder_get_object(builder, "button_about");
+	g_signal_connect(button, "clicked", G_CALLBACK(show_about), GTK_WINDOW(window));
+
+	/* Here we play with the switcher and THEN with buttons which are connected to it. */
+	switcher = gtk_builder_get_object(builder, "switch_video");
+	gtk_switch_set_active(GTK_SWITCH(switcher), FALSE);
+	g_signal_connect(GTK_SWITCH(switcher), "notify::active",
+                   G_CALLBACK(start_video), switcher);
+
+	button = gtk_builder_get_object(builder, "button_take_photo");
+  g_signal_connect(button, "clicked", G_CALLBACK(take_picture), switcher);
+
+  button = gtk_builder_get_object(builder, "quit");
+	g_signal_connect(button, "clicked", G_CALLBACK(clean_up_b4_go), switcher);
+  g_signal_connect_swapped(button, "clicked", G_CALLBACK(gtk_main_quit), NULL);
+
+	scale = gtk_builder_get_object(builder, "pwm_scale");
+	g_signal_connect(scale, "value-changed", G_CALLBACK(pwm_scale_moved), NULL);
+
+	/*Here we configure the modes of the GPIO PINs*/
+  set_gpio_modes();
+
+	gtk_main();
+  return 0;
+	}