Automated update

clock/src/clock.c.bak

@@ -107,13 +107,17 @@ void update_time(int *framebuffer, struct fb_var_screeninfo vinfo) {
     time(&rawtime);
     timeinfo = localtime(&rawtime);
 
-    // Correcting hour and minute hand angles
+    // Calculate the angle for the hour hand
-    float hour_angle = ((timeinfo->tm_hour % 12) * 30 + timeinfo->tm_min * 0.5) * (M_PI / 180.0) - M_PI / 2;
+    float hour_angle_degrees = (30 * timeinfo->tm_hour) + (timeinfo->tm_min * 0.5);
-    float minute_angle = (timeinfo->tm_min * 6 + timeinfo->tm_sec * 0.1) * (M_PI / 180.0) - M_PI / 2;
+    float hour_angle = - hour_angle_degrees * M_PI / 180.0 + M_PI / 2; // Convert to radians and adjust to 12 o'clock start
 
-    // Draw both hands in black color
+    // Calculate the angle for the minute hand
-    draw_hand(framebuffer, vinfo, hour_angle, HOUR_HAND_LENGTH, 0x000000); // Hour hand in black
+    float minute_angle_degrees = 6 * timeinfo->tm_min;
-    draw_hand(framebuffer, vinfo, minute_angle, MINUTE_HAND_LENGTH, 0x000000); // Minute hand in black
+    float minute_angle = - minute_angle_degrees * M_PI / 180.0 + M_PI / 2; // Convert to radians and adjust to 12 o'clock start
+
+    // Draw both hands in white (0xFFFFFF)
+    draw_hand(framebuffer, vinfo, hour_angle, HOUR_HAND_LENGTH, 0xFFFFFF); // Hour hand is shorter
+    draw_hand(framebuffer, vinfo, minute_angle, MINUTE_HAND_LENGTH, 0xFFFFFF); // Minute hand is longer
 
     // Display the date
     strftime(date_buffer, sizeof(date_buffer), "%Y-%m-%d", timeinfo);
@@ -124,7 +128,6 @@ void update_time(int *framebuffer, struct fb_var_screeninfo vinfo) {
     draw_text(framebuffer, vinfo, time_buffer, CENTER_X - 80, CENTER_Y + 350, 3, 0xFFFFFF); // Moved lower and increased size
 }
 
-// Main function
 int main() {
     // Open the framebuffer device
     int fbfd = open("/dev/fb0", O_RDWR);

display/README.md

@@ -0,0 +1,3 @@
+# clock Project
+
+This is a C project generated with the setup tool.

display/build/Makefile

@@ -0,0 +1,24 @@
+# build/Makefile
+CC = gcc
+CFLAGS = -Wall -I../include
+SRCDIR = ../src
+OBJDIR = ../obj
+BINDIR = ../build
+TARGET = clock
+
+# Gather all source files in src directory
+SOURCES = $(wildcard $(SRCDIR)/*.c)
+OBJECTS = $(patsubst $(SRCDIR)/%.c, $(OBJDIR)/%.o, $(SOURCES))
+
+all: $(TARGET)
+
+$(TARGET): $(OBJECTS)
+	$(CC) $(CFLAGS) -o $(BINDIR)/$(TARGET) $(OBJECTS) -lm
+
+$(OBJDIR)/%.o: $(SRCDIR)/%.c
+	$(CC) $(CFLAGS) -c $< -o $@
+
+clean:
+	rm -f $(OBJDIR)/*.o $(BINDIR)/$(TARGET)
+
+.PHONY: all clean

display/include/clock.h

@@ -0,0 +1,43 @@
+// include/clock.h
+#ifndef CLOCK_H
+#define CLOCK_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+#include <linux/fb.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <math.h>
+#include <string.h> 
+#include <sys/ioctl.h>
+#include <errno.h>
+
+
+#define SCREEN_WIDTH 800
+#define SCREEN_HEIGHT 600
+#define CENTER_X (SCREEN_WIDTH / 2)
+#define CENTER_Y (SCREEN_HEIGHT / 2)
+#define RADIUS 200
+#define HOUR_HAND_LENGTH 100
+#define MINUTE_HAND_LENGTH 150
+
+typedef struct {
+    int x;
+    int y;
+} Point;
+
+void draw_circle(int *framebuffer, struct fb_var_screeninfo vinfo);
+void draw_hand(int *framebuffer, struct fb_var_screeninfo vinfo, float angle, int length, int color);
+void draw_clock_face(int *framebuffer, struct fb_var_screeninfo vinfo);
+void update_time(int *framebuffer, struct fb_var_screeninfo vinfo);
+void draw_text(int *framebuffer, struct fb_var_screeninfo vinfo, const char *text, int x, int y, int size, int color);
+void update_system_info(int *framebuffer, struct fb_var_screeninfo vinfo);
+int get_cpu_usage();
+int get_ram_usage();
+int get_disk_usage();
+int get_battery_percentage();
+int get_cpu_temperature();
+
+#endif

display/src/clock.c

@@ -0,0 +1,270 @@
+#include "../include/clock.h"
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <string.h>
+#include <time.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <sys/statvfs.h>  // Include this for statvfs
+
+// Set a pixel at (x, y) with color in the framebuffer
+void set_pixel(int *framebuffer, struct fb_var_screeninfo vinfo, int x, int y, int color) {
+    if (x >= 0 && x < vinfo.xres_virtual && y >= 0 && y < vinfo.yres_virtual) {
+        framebuffer[y * vinfo.xres_virtual + x] = color;
+    }
+}
+
+// Bresenham's line algorithm for drawing lines
+void draw_line(int *framebuffer, struct fb_var_screeninfo vinfo, int x0, int y0, int x1, int y1, int color) {
+    int dx = abs(x1 - x0), sx = x0 < x1 ? 1 : -1;
+    int dy = -abs(y1 - y0), sy = y0 < y1 ? 1 : -1;
+    int err = dx + dy, e2;
+
+    while (1) {
+        set_pixel(framebuffer, vinfo, x0, y0, color);
+        if (x0 == x1 && y0 == y1) break;
+        e2 = 2 * err;
+        if (e2 >= dy) { err += dy; x0 += sx; }
+        if (e2 <= dx) { err += dx; y0 += sy; }
+    }
+}
+
+// Draw a simple filled rectangle to represent text characters
+void draw_char(int *framebuffer, struct fb_var_screeninfo vinfo, char c, int x, int y, int size, int color) {
+    static const char font[10][5][3] = {
+        { "111", "101", "101", "101", "111" },  // '0'
+        { "110", "010", "010", "010", "111" },  // '1'
+        { "111", "001", "111", "100", "111" },  // '2'
+        { "111", "001", "111", "001", "111" },  // '3'
+        { "101", "101", "111", "001", "001" },  // '4'
+        { "111", "100", "111", "001", "111" },  // '5'
+        { "111", "100", "111", "101", "111" },  // '6'
+        { "111", "001", "001", "001", "001" },  // '7'
+        { "111", "101", "111", "101", "111" },  // '8'
+        { "111", "101", "111", "001", "111" }   // '9'
+    };
+
+    if (c >= '0' && c <= '9') {
+        int index = c - '0';
+        for (int row = 0; row < 5; ++row) {
+            for (int col = 0; col < 3; ++col) {
+                if (font[index][row][col] == '1') {
+                    for (int i = 0; i < size; ++i) {
+                        for (int j = 0; j < size; ++j) {
+                            set_pixel(framebuffer, vinfo, x + col * size + i, y + row * size + j, color);
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+// Draw a string of characters
+void draw_text(int *framebuffer, struct fb_var_screeninfo vinfo, const char *text, int x, int y, int size, int color) {
+    for (const char *p = text; *p; ++p) {
+        draw_char(framebuffer, vinfo, *p, x, y, size, color);
+        x += size * 4; // Move to the next character position
+    }
+}
+
+// Draw numbers around the clock face
+void draw_circle(int *framebuffer, struct fb_var_screeninfo vinfo) {
+    for (int i = 1; i <= 12; ++i) {
+        float angle = (i * 30 - 90) * M_PI / 180.0;
+        int x = CENTER_X + (int)(RADIUS * cos(angle));
+        int y = CENTER_Y + (int)(RADIUS * sin(angle));
+        
+        char buffer[3];
+        sprintf(buffer, "%d", i);
+        draw_text(framebuffer, vinfo, buffer, x - 10, y - 10, 3, 0xFFFFFF); // Increased the size to '3' for visibility
+    }
+}
+
+// Draw clock hands
+void draw_hand(int *framebuffer, struct fb_var_screeninfo vinfo, float angle, int length, int color) {
+    int x_end = CENTER_X + length * cos(angle);
+    int y_end = CENTER_Y - length * sin(angle);
+    draw_line(framebuffer, vinfo, CENTER_X, CENTER_Y, x_end, y_end, color);
+}
+
+// Draw the clock face with numbers
+void draw_clock_face(int *framebuffer, struct fb_var_screeninfo vinfo) {
+    memset(framebuffer, 0, vinfo.yres_virtual * vinfo.xres_virtual * sizeof(int)); // Clear screen
+    draw_circle(framebuffer, vinfo); // Draw the numbers
+}
+
+// Function to read the first line of a file
+int read_first_line(const char *path, char *buffer, size_t size) {
+    FILE *file = fopen(path, "r");
+    if (file == NULL) return -1;
+    if (fgets(buffer, size, file) == NULL) {
+        fclose(file);
+        return -1;
+    }
+    fclose(file);
+    return 0;
+}
+
+// Get system data
+int get_cpu_usage() {
+    char buffer[256];
+    unsigned long long int user, nice, system, idle;
+    read_first_line("/proc/stat", buffer, sizeof(buffer));
+    sscanf(buffer, "cpu %llu %llu %llu %llu", &user, &nice, &system, &idle);
+    
+    static unsigned long long int prev_user = 0, prev_nice = 0, prev_system = 0, prev_idle = 0;
+    unsigned long long int total_diff = (user - prev_user) + (nice - prev_nice) + (system - prev_system);
+    unsigned long long int idle_diff = idle - prev_idle;
+    int cpu_usage = (total_diff * 100) / (total_diff + idle_diff);
+
+    prev_user = user;
+    prev_nice = nice;
+    prev_system = system;
+    prev_idle = idle;
+    
+    return cpu_usage;
+}
+
+int get_ram_usage() {
+    char buffer[256];
+    unsigned long mem_total, mem_available;
+    read_first_line("/proc/meminfo", buffer, sizeof(buffer));
+    sscanf(buffer, "MemTotal: %lu kB", &mem_total);
+    read_first_line("/proc/meminfo", buffer, sizeof(buffer));
+    sscanf(buffer, "MemAvailable: %lu kB", &mem_available);
+
+    int ram_usage = ((mem_total - mem_available) * 100) / mem_total;
+    return ram_usage;
+}
+
+int get_disk_usage() {
+    struct statvfs stat;
+    if (statvfs("/", &stat) != 0) return -1;
+    
+    unsigned long total_blocks = stat.f_blocks;
+    unsigned long free_blocks = stat.f_bfree;
+    int disk_usage = ((total_blocks - free_blocks) * 100) / total_blocks;
+    
+    return disk_usage;
+}
+
+int get_battery_percentage() {
+    char buffer[16];
+    read_first_line("/sys/class/power_supply/BAT0/capacity", buffer, sizeof(buffer));
+    return atoi(buffer);
+}
+
+int get_cpu_temperature() {
+    char buffer[16];
+    read_first_line("/sys/class/thermal/thermal_zone0/temp", buffer, sizeof(buffer));
+    return atoi(buffer) / 1000;
+}
+
+// Draw a percentage bar using [#####] style
+void draw_percentage_bar(int *framebuffer, struct fb_var_screeninfo vinfo, int x, int y, int percentage, int size, int color) {
+    char bar[6];
+    int num_hashes = (percentage / 20);
+    for (int i = 0; i < 5; ++i) {
+        bar[i] = i < num_hashes ? '#' : ' ';
+    }
+    bar[5] = '\0';
+    draw_text(framebuffer, vinfo, bar, x, y, size, color);
+}
+
+// Update system info on the screen
+void update_system_info(int *framebuffer, struct fb_var_screeninfo vinfo) {
+    int battery_percentage = get_battery_percentage();
+    int cpu_usage = get_cpu_usage();
+    int ram_usage = get_ram_usage();
+    int disk_usage = get_disk_usage();
+    int cpu_temp = get_cpu_temperature();
+
+    char buffer[80];
+
+    // Draw battery info
+    sprintf(buffer, "Battery: %d%%", battery_percentage);
+    draw_text(framebuffer, vinfo, buffer, CENTER_X - 100, CENTER_Y + 300, 2, 0xFFFFFF);
+    draw_percentage_bar(framebuffer, vinfo, CENTER_X + 60, CENTER_Y + 300, battery_percentage, 2, 0xFFFFFF);
+
+    // Draw CPU usage
+    sprintf(buffer, "CPU: %d%% Temp: %d°C", cpu_usage, cpu_temp);
+    draw_text(framebuffer, vinfo, buffer, CENTER_X - 100, CENTER_Y + 350, 2, 0xFFFFFF);
+    draw_percentage_bar(framebuffer, vinfo, CENTER_X + 60, CENTER_Y + 350, cpu_usage, 2, 0xFFFFFF);
+
+    // Draw RAM usage
+    sprintf(buffer, "RAM: %d%%", ram_usage);
+    draw_text(framebuffer, vinfo, buffer, CENTER_X - 100, CENTER_Y + 400, 2, 0xFFFFFF);
+    draw_percentage_bar(framebuffer, vinfo, CENTER_X + 60, CENTER_Y + 400, ram_usage, 2, 0xFFFFFF);
+
+    // Draw Disk usage
+    sprintf(buffer, "Disk: %d%%", disk_usage);
+    draw_text(framebuffer, vinfo, buffer, CENTER_X - 100, CENTER_Y + 450, 2, 0xFFFFFF);
+    draw_percentage_bar(framebuffer, vinfo, CENTER_X + 60, CENTER_Y + 450, disk_usage, 2, 0xFFFFFF);
+}
+
+// Update the clock hands and date/time display
+void update_time(int *framebuffer, struct fb_var_screeninfo vinfo) {
+    time_t rawtime;
+    struct tm *timeinfo;
+    char date_buffer[80];
+    char time_buffer[80];
+
+    time(&rawtime);
+    timeinfo = localtime(&rawtime);
+
+    float hour_angle_degrees = (30 * timeinfo->tm_hour) + (timeinfo->tm_min * 0.5);
+    float hour_angle = - hour_angle_degrees * M_PI / 180.0 + M_PI / 2;
+
+    float minute_angle_degrees = 6 * timeinfo->tm_min;
+    float minute_angle = - minute_angle_degrees * M_PI / 180.0 + M_PI / 2;
+
+    draw_hand(framebuffer, vinfo, hour_angle, HOUR_HAND_LENGTH, 0xFFFFFF);
+    draw_hand(framebuffer, vinfo, minute_angle, MINUTE_HAND_LENGTH, 0xFFFFFF);
+
+    strftime(date_buffer, sizeof(date_buffer), "%Y-%m-%d", timeinfo);
+    draw_text(framebuffer, vinfo, date_buffer, CENTER_X - 100, CENTER_Y + 200, 3, 0xFFFFFF);
+
+    strftime(time_buffer, sizeof(time_buffer), "%H:%M:%S", timeinfo);
+    draw_text(framebuffer, vinfo, time_buffer, CENTER_X - 80, CENTER_Y + 250, 3, 0xFFFFFF);
+
+    update_system_info(framebuffer, vinfo);
+}
+
+int main() {
+    int fbfd = open("/dev/fb0", O_RDWR);
+    if (fbfd == -1) {
+        perror("Error: cannot open framebuffer device");
+        exit(1);
+    }
+
+    struct fb_var_screeninfo vinfo;
+    if (ioctl(fbfd, FBIOGET_VSCREENINFO, &vinfo)) {
+        perror("Error reading variable information");
+        close(fbfd);
+        exit(2);
+    }
+
+    size_t screensize = vinfo.yres_virtual * vinfo.xres_virtual * vinfo.bits_per_pixel / 8;
+    int *framebuffer = (int *)mmap(0, screensize, PROT_READ | PROT_WRITE, MAP_SHARED, fbfd, 0);
+    if (framebuffer == MAP_FAILED) {
+        perror("Error mapping framebuffer device to memory");
+        close(fbfd);
+        exit(3);
+    }
+
+    while (1) {
+        draw_clock_face(framebuffer, vinfo);
+        update_time(framebuffer, vinfo);
+        sleep(1); 
+    }
+
+    munmap(framebuffer, screensize);
+    close(fbfd);
+
+    return 0;
+}
+

display/src/clock.c.bak

@@ -0,0 +1,168 @@
+// src/clock.c
+#include "../include/clock.h"
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <string.h>
+#include <time.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+// Set a pixel at (x, y) with color in the framebuffer
+void set_pixel(int *framebuffer, struct fb_var_screeninfo vinfo, int x, int y, int color) {
+    if (x >= 0 && x < vinfo.xres_virtual && y >= 0 && y < vinfo.yres_virtual) {
+        framebuffer[y * vinfo.xres_virtual + x] = color;
+    }
+}
+
+// Bresenham's line algorithm for drawing lines
+void draw_line(int *framebuffer, struct fb_var_screeninfo vinfo, int x0, int y0, int x1, int y1, int color) {
+    int dx = abs(x1 - x0), sx = x0 < x1 ? 1 : -1;
+    int dy = -abs(y1 - y0), sy = y0 < y1 ? 1 : -1;
+    int err = dx + dy, e2;
+
+    while (1) {
+        set_pixel(framebuffer, vinfo, x0, y0, color);
+        if (x0 == x1 && y0 == y1) break;
+        e2 = 2 * err;
+        if (e2 >= dy) { err += dy; x0 += sx; }
+        if (e2 <= dx) { err += dx; y0 += sy; }
+    }
+}
+
+// Draw a simple filled rectangle to represent text characters
+void draw_char(int *framebuffer, struct fb_var_screeninfo vinfo, char c, int x, int y, int size, int color) {
+    static const char font[10][5][3] = {
+        { "111", "101", "101", "101", "111" },  // '0'
+        { "110", "010", "010", "010", "111" },  // '1'
+        { "111", "001", "111", "100", "111" },  // '2'
+        { "111", "001", "111", "001", "111" },  // '3'
+        { "101", "101", "111", "001", "001" },  // '4'
+        { "111", "100", "111", "001", "111" },  // '5'
+        { "111", "100", "111", "101", "111" },  // '6'
+        { "111", "001", "001", "001", "001" },  // '7'
+        { "111", "101", "111", "101", "111" },  // '8'
+        { "111", "101", "111", "001", "111" }   // '9'
+    };
+
+    if (c >= '0' && c <= '9') {
+        int index = c - '0';
+        for (int row = 0; row < 5; ++row) {
+            for (int col = 0; col < 3; ++col) {
+                if (font[index][row][col] == '1') {
+                    for (int i = 0; i < size; ++i) {
+                        for (int j = 0; j < size; ++j) {
+                            set_pixel(framebuffer, vinfo, x + col * size + i, y + row * size + j, color);
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+// Draw a string of characters
+void draw_text(int *framebuffer, struct fb_var_screeninfo vinfo, const char *text, int x, int y, int size, int color) {
+    for (const char *p = text; *p; ++p) {
+        draw_char(framebuffer, vinfo, *p, x, y, size, color);
+        x += size * 4; // Move to the next character position
+    }
+}
+
+// Draw numbers around the clock face
+void draw_circle(int *framebuffer, struct fb_var_screeninfo vinfo) {
+    for (int i = 1; i <= 12; ++i) {
+        float angle = (i * 30 - 90) * M_PI / 180.0;
+        int x = CENTER_X + (int)(RADIUS * cos(angle));
+        int y = CENTER_Y + (int)(RADIUS * sin(angle));
+        
+        char buffer[3];
+        sprintf(buffer, "%d", i);
+        draw_text(framebuffer, vinfo, buffer, x - 10, y - 10, 3, 0xFFFFFF); // Increased the size to '3' for visibility
+    }
+}
+
+// Draw clock hands
+void draw_hand(int *framebuffer, struct fb_var_screeninfo vinfo, float angle, int length, int color) {
+    int x_end = CENTER_X + length * cos(angle);
+    int y_end = CENTER_Y - length * sin(angle);
+    draw_line(framebuffer, vinfo, CENTER_X, CENTER_Y, x_end, y_end, color);
+}
+
+// Draw the clock face with numbers
+void draw_clock_face(int *framebuffer, struct fb_var_screeninfo vinfo) {
+    memset(framebuffer, 0, vinfo.yres_virtual * vinfo.xres_virtual * sizeof(int)); // Clear screen
+    draw_circle(framebuffer, vinfo); // Draw the numbers
+}
+
+// Update the clock hands and date/time display
+void update_time(int *framebuffer, struct fb_var_screeninfo vinfo) {
+    time_t rawtime;
+    struct tm *timeinfo;
+    char date_buffer[80];
+    char time_buffer[80];
+
+    time(&rawtime);
+    timeinfo = localtime(&rawtime);
+
+    // Calculate the angle for the hour hand
+    float hour_angle_degrees = (30 * timeinfo->tm_hour) + (timeinfo->tm_min * 0.5);
+    float hour_angle = - hour_angle_degrees * M_PI / 180.0 + M_PI / 2; // Convert to radians and adjust to 12 o'clock start
+
+    // Calculate the angle for the minute hand
+    float minute_angle_degrees = 6 * timeinfo->tm_min;
+    float minute_angle = - minute_angle_degrees * M_PI / 180.0 + M_PI / 2; // Convert to radians and adjust to 12 o'clock start
+
+    // Draw both hands in white (0xFFFFFF)
+    draw_hand(framebuffer, vinfo, hour_angle, HOUR_HAND_LENGTH, 0xFFFFFF); // Hour hand is shorter
+    draw_hand(framebuffer, vinfo, minute_angle, MINUTE_HAND_LENGTH, 0xFFFFFF); // Minute hand is longer
+
+    // Display the date
+    strftime(date_buffer, sizeof(date_buffer), "%Y-%m-%d", timeinfo);
+    draw_text(framebuffer, vinfo, date_buffer, CENTER_X - 100, CENTER_Y + 300, 3, 0xFFFFFF); // Moved lower and increased size
+
+    // Display the time
+    strftime(time_buffer, sizeof(time_buffer), "%H:%M:%S", timeinfo);
+    draw_text(framebuffer, vinfo, time_buffer, CENTER_X - 80, CENTER_Y + 350, 3, 0xFFFFFF); // Moved lower and increased size
+}
+
+int main() {
+    // Open the framebuffer device
+    int fbfd = open("/dev/fb0", O_RDWR);
+    if (fbfd == -1) {
+        perror("Error: cannot open framebuffer device");
+        exit(1);
+    }
+
+    // Get variable screen information
+    struct fb_var_screeninfo vinfo;
+    if (ioctl(fbfd, FBIOGET_VSCREENINFO, &vinfo)) {
+        perror("Error reading variable information");
+        close(fbfd);
+        exit(2);
+    }
+
+    // Map the framebuffer to user memory
+    size_t screensize = vinfo.yres_virtual * vinfo.xres_virtual * vinfo.bits_per_pixel / 8;
+    int *framebuffer = (int *)mmap(0, screensize, PROT_READ | PROT_WRITE, MAP_SHARED, fbfd, 0);
+    if (framebuffer == MAP_FAILED) {
+        perror("Error mapping framebuffer device to memory");
+        close(fbfd);
+        exit(3);
+    }
+
+    // Continuously update the clock
+    while (1) {
+        draw_clock_face(framebuffer, vinfo);
+        update_time(framebuffer, vinfo);
+        sleep(1); // Sleep for 1 second to update the clock every second
+    }
+
+    // Cleanup
+    munmap(framebuffer, screensize);
+    close(fbfd);
+
+    return 0;
+}