[Thread Tutorial] Update Screen application

- Remove IPC
- Add more substeps

Author: tyler-potyondy

examples/tutorials/thread_network/05_screen/Makefile renamed to examples/tutorials/thread_network/08_screen/Makefile

@@ -0,0 +1,13 @@
+# Makefile for user application
+
+# Specify this directory relative to the current application.
+TOCK_USERLAND_BASE_DIR = ../../../../
+
+# Which files to compile.
+C_SRCS := $(wildcard *.c)
+
+PACKAGE_NAME = screen 
+
+# Include userland master makefile. Contains rules and flags for actually
+# building the application.
+include $(TOCK_USERLAND_BASE_DIR)/AppMakefile.mk

examples/tutorials/thread_network/05_screen/main.c renamed to examples/tutorials/thread_network/08_screen/main.c

@@ -0,0 +1,60 @@
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <libtock/interface/button.h>
+
+uint8_t global_temperature_setpoint = 0;
+uint8_t local_temperature_setpoint  = 22;
+uint8_t measured_temperature        = 0;
+
+
+static void button_callback(returncode_t ret,
+                            int          btn_num,
+                            bool         pressed) {
+
+  if (pressed) {
+    printf("Button %i pressed!\r\n", btn_num);
+  }
+}
+
+int main(void) {
+  for (int i = 0; i < 4; i++){
+    libtock_button_notify_on_press(i, button_callback);
+  }
+
+  update_screen();
+
+  for(;;) {
+    yield();
+  }  
+}
+
+static void update_screen(void) {
+  char temperature_set_point_str[35];
+  char temperature_global_set_point_str[35];
+  char temperature_current_measure_str[35];
+  
+  // Format the buffers to be written.
+  sprintf(temperature_set_point_str,
+          "Set Point: %d", 
+	  local_temperature_setpoint);
+
+  sprintf(temperature_global_set_point_str, 
+          "Global Set Point: %d",
+	  global_temperature_setpoint);
+
+  sprintf(temperature_current_measure_str, 
+	  "Measured Temp: %d",
+	  measured_temperature);
+
+  // Use u8g2 library to draw each string.
+  u8g2_ClearBuffer(&u8g2);
+  u8g2_SetDrawColor(&u8g2, 1);
+  u8g2_DrawStr(&u8g2, 0, 0, temperature_set_point_str);
+  u8g2_DrawStr(&u8g2, 0, 25, temperature_global_set_point_str);
+  u8g2_DrawStr(&u8g2, 0, 50, temperature_current_measure_str);
+  u8g2_SendBuffer(&u8g2);
+}
+

examples/tutorials/thread_network/06_screen_button/.tab renamed to examples/tutorials/thread_network/09_screen_button/.tab

@@ -0,0 +1,13 @@
+# Makefile for user application
+
+# Specify this directory relative to the current application.
+TOCK_USERLAND_BASE_DIR = ../../../../
+
+# Which files to compile.
+C_SRCS := $(wildcard *.c)
+
+PACKAGE_NAME = screen 
+
+# Include userland master makefile. Contains rules and flags for actually
+# building the application.
+include $(TOCK_USERLAND_BASE_DIR)/AppMakefile.mk