diff --git a/src/main.c b/src/main.c
index 52f2e21..3e007b1 100644
--- a/src/main.c
+++ b/src/main.c
@@ -18,13 +18,13 @@ const int digit_bitmaps[10][5][3] = {
         {{1,1,1},{1,0,1},{1,1,1},{0,0,1},{1,1,1}}  // 9
 };
 
-void get_fake_data(int *speed, int *power, int *bat, float *tq, int *rpm, int *eff, float *bat_temp, float *var_temp, float *mot_temp) {
+void get_fake_data(int *speed, int *power, int *bat, float *tq, int *rpm, float *eff, float *bat_temp, float *var_temp, float *mot_temp) {
         *speed = rand() % 201;
         *power = rand() % 1251;
         *bat = rand() % 101;
         *tq = 1.8f + ((float)rand() / (float)RAND_MAX) * (3.5f - 1.8f);
         *rpm = rand() % 6000;
-        *eff = rand() % 100;
+        *eff = (float)rand() / (float)RAND_MAX * 300.0f;
         *bat_temp = (float)rand() / (float)RAND_MAX * 150.0f;
         *var_temp = (float)rand() / (float)RAND_MAX * 150.0f;
         *mot_temp = (float)rand() / (float)RAND_MAX * 150.0f;
@@ -143,6 +143,31 @@ void win_float(WINDOW *lwin, float data, int digits) {
         wrefresh(lwin);
 }
 
+void win_bar(WINDOW *lwin, int data, int data_max) {
+        int lwiny, lwinx;
+        getmaxyx(lwin, lwiny, lwinx);
+
+        win_clear(lwin);
+
+        int bar_width = lwinx - 4;
+        int bar_height = lwiny - 2;
+        int filled = (data * bar_width) / data_max;
+
+        for (int y = 1; y <= bar_height; y++) {
+                for (int x = 0; x < bar_width; x++) {
+                        if (x < filled)
+                                mvwaddch(lwin, y, 2 + x, ACS_CKBOARD);
+                }
+        }
+
+        char buf[16];
+        snprintf(buf, sizeof(buf), "%d rpm", data);
+        mvwprintw(lwin, lwiny / 2 - 1, 3, "%s", buf);
+
+        wrefresh(lwin);
+}
+
+
 int main(int argc, char **argv) {	
         int option;
         int delay = 1;
@@ -217,8 +242,8 @@ int main(int argc, char **argv) {
                 wrefresh(win[i]);
         }
 
-        int speed = 0, power = 0, bat = 0, rpm = 0, eff = 0;
-        float tq = 0.0f, bat_temp = 0.0f, var_temp = 0.0f, mot_temp = 0.0f;
+        int speed = 0, power = 0, bat = 0, rpm = 0;
+        float tq = 0.0f, eff = 0.0f, bat_temp = 0.0f, var_temp = 0.0f, mot_temp = 0.0f;
         long t100 = 0, t1000 = 0;
         int ch = ERR;
         while(ch == ERR) {
@@ -234,8 +259,8 @@ int main(int argc, char **argv) {
                         win_int(win[0], speed, 3);
                         win_int(win[1], power, 4);
                         win_float(win[3], tq, 3);
-                        //win[4]
-                        //win[5]
+                        win_bar(win[4], rpm, 6000);
+                        win_float(win[5], eff, 5);
                         t100 = now;
                 }
                 if (now - t1000 >= 1000 * delay) {