diff --git a/src/framebuffer.c b/src/framebuffer.c
new file mode 100644
index 0000000..5edbb17
--- /dev/null
+++ b/src/framebuffer.c
@@ -0,0 +1,232 @@
+//
+// Created by MightyPork on 2022/11/12.
+//
+
+#include "user_interface.h"
+#include "framebuffer.h"
+#include "ssd1306.h"
+
+/* Tiny framebuffer */
+#define FBW DISPLAY_W
+#define FBH DISPLAY_H
+
+#define MIN(a,b) ((a)>(b)?(b):(a))
+#define MAX(a,b) ((a)>(b)?(a):(b))
+
+static uint8_t fb[(FBH/8)*FBW];
+
+/** Fill with a vertical pattern, 1 byte */
+void fb_fill(uint8_t pattern) {
+    memset(fb, pattern, sizeof(fb));
+}
+
+void fb_clear() {
+    fb_fill(0);
+}
+
+void fb_px(uint8_t x, uint8_t y, uint8_t color) {
+    if (x >= FBW || y >= FBH) return;
+    const uint8_t row = y / 8;
+    const uint8_t rowrem = y % 8;
+    const uint16_t cell = (uint16_t) x + (uint16_t) row * FBW;
+    if (color) {
+        fb[cell] |= (1 << rowrem);
+    } else {
+        fb[cell] &= ~(1 << rowrem);
+    }
+}
+
+void fb_hline(uint8_t x, uint8_t y, uint8_t w, uint8_t color) {
+    if (x >= FBW || y >= FBH) return;
+    w = MIN(FBW - x, w);
+    const uint8_t row = y / 8;
+    const uint8_t rowrem = y % 8;
+    uint16_t cell = (uint16_t) x + (uint16_t) row * FBW;
+    for(uint8_t i = 0; i < w; i++) {
+        if (color) {
+            fb[cell] |= (1 << rowrem);
+        } else {
+            fb[cell] &= ~(1 << rowrem);
+        }
+        cell++;
+    }
+}
+
+void fb_vline(uint8_t x, uint8_t y, uint8_t h, uint8_t color) {
+    if (x >= FBW || y >= FBH) return;
+    h = MIN(FBH - y - 1, h);
+    const uint8_t row = y / 8;
+    const uint8_t rowrem = y % 8;
+    uint16_t cell = (uint16_t) x + (uint16_t) row * FBW;
+
+    if (rowrem + h < 8) {
+        // all within one cell
+        uint8_t mask = (0xFF << rowrem) & (0xFF >> (h-rowrem));
+        if (color) {
+            fb[cell] |= mask;
+        } else {
+            fb[cell] &= ~mask;
+        }
+        return;
+    } else {
+        // First
+        uint8_t mask = (0xFF << rowrem);
+        if (color) {
+            fb[cell] |= mask;
+        } else {
+            fb[cell] &= ~mask;
+        }
+        h -= rowrem;
+
+        uint8_t whole_cells = h / 8;
+        h -= whole_cells * 8;
+        for(uint8_t i = 0; i < whole_cells; i++) {
+            cell += FBW;
+            if (color) {
+                fb[cell] = 0xFF;
+            } else {
+                fb[cell] = 0;
+            }
+        }
+
+        // last
+        mask = (0xFF >> (8-h));
+        if (color) {
+            fb[cell] |= mask;
+        } else {
+            fb[cell] &= ~mask;
+        }
+    }
+}
+
+void fb_rect(uint8_t x, uint8_t y, uint8_t w, uint8_t h, uint8_t color) {
+    if (x >= FBW || y >= FBH) return;
+    w = MIN(FBW - x - 1, w);
+    h = MIN(FBH - y - 1, h);
+    const uint8_t row = y / 8;
+    const uint8_t rowrem = y % 8;
+    uint16_t cell = (uint16_t) x + (uint16_t) row * FBW;
+
+    if (rowrem + h <= 8) {
+        // all within one cell
+        uint8_t mask = (0xFF << rowrem) & (0xFF >> (8 - (h - rowrem)));
+
+        for(uint8_t i = 0; i < w; i++) {
+            if (color) {
+                fb[cell + i] |= mask;
+            } else {
+                fb[cell + i] &= ~mask;
+            }
+        }
+        return;
+    } else {
+        // First
+        uint8_t mask = (0xFF << rowrem);
+        for(uint8_t i = 0; i < w; i++) {
+            if (color) {
+                fb[cell + i] |= mask;
+            } else {
+                fb[cell + i] &= ~mask;
+            }
+        }
+        h -= 8 - rowrem;
+
+        uint8_t whole_cells = h / 8;
+        h -= whole_cells * 8;
+        for(uint8_t j = 0; j < whole_cells; j++) {
+            cell += FBW;
+            for(uint8_t i = 0; i < w; i++) {
+                if (color) {
+                    fb[cell + i] = 0xFF;
+                } else {
+                    fb[cell + i] = 0;
+                }
+            }
+        }
+
+        cell += FBW;
+
+        // last
+        mask = (0xFF >> (8-h));
+        for(uint8_t i = 0; i < w; i++) {
+            if (color) {
+                fb[cell + i] |= mask;
+            } else {
+                fb[cell + i] &= ~mask;
+            }
+        }
+    }
+}
+
+void fb_bitmap(uint8_t x, uint8_t y, uint8_t w, uint8_t h, const uint8_t *map, uint8_t color) {
+    if (x >= FBW || y >= FBH) return;
+    const uint8_t w0 = w;
+    const uint8_t h0 = h;
+    w = MIN(FBW - x - 1, w);
+    h = MIN(FBH - y - 1, h);
+    const uint8_t row = y / 8;
+    const uint8_t rowrem = y % 8;
+    uint16_t cell = (uint16_t) x + (uint16_t) row * FBW;
+
+    if (rowrem + h <= 8) {
+        for(uint8_t i = 0; i < w; i++) {
+            // all within one cell
+            uint8_t mask = (map[i] & (0xFF >> (8-h))) << rowrem;
+            if (color) {
+                fb[cell + i] |= mask;
+            } else {
+                fb[cell + i] &= ~mask;
+            }
+        }
+        return;
+    } else if (rowrem == 0) {
+        // Optimization
+
+        // First
+        for(uint8_t i = 0; i < w; i++) {
+            uint8_t mask = map[i];
+            if (color) {
+                fb[cell + i] |= mask;
+            } else {
+                fb[cell + i] &= ~mask;
+            }
+        }
+        h -= 8;
+
+        // Middle
+        uint8_t whole_cells = h / 8;
+        h -= whole_cells * 8;
+        for(uint8_t j = 0; j < whole_cells; j++) {
+            cell += FBW;
+            for(uint8_t i = 0; i < w; i++) {
+                uint8_t mask = map[i + (j+1)*w0];
+                if (color) {
+                    fb[cell + i] |= mask;
+                } else {
+                    fb[cell + i] &= ~mask;
+                }
+            }
+        }
+
+        // last
+        cell += FBW;
+
+        // last
+        for(uint8_t i = 0; i < w; i++) {
+            uint8_t mask = map[i + (whole_cells+1)*w0] & (0xFF >> (8-h));
+            if (color) {
+                fb[cell + i] |= mask;
+            } else {
+                fb[cell + i] &= ~mask;
+            }
+        }
+
+    } else {
+        // TODO wild combination, unaligned multi-row
+    }
+}
+
+
+void fb_blit() {
+    ssd1306_drawBuffer(0, 0, FBW, FBH, fb);
+}
diff --git a/src/framebuffer.h b/src/framebuffer.h
new file mode 100644
index 0000000..b9fdacf
--- /dev/null
+++ b/src/framebuffer.h
@@ -0,0 +1,20 @@
+//
+// Created by MightyPork on 2022/11/12.
+//
+
+#ifndef FRAMEBUFFER_H
+#define FRAMEBUFFER_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+void fb_fill(uint8_t pattern);
+void fb_clear(void);
+void fb_px(uint8_t x, uint8_t y, uint8_t color);
+void fb_hline(uint8_t x, uint8_t y, uint8_t w, uint8_t color);
+void fb_vline(uint8_t x, uint8_t y, uint8_t h, uint8_t color);
+void fb_rect(uint8_t x, uint8_t y, uint8_t w, uint8_t h, uint8_t color);
+void fb_bitmap(uint8_t x, uint8_t y, uint8_t w, uint8_t h, const uint8_t *map, uint8_t color);
+void fb_blit(void);
+
+#endif //FRAMEBUFFER_H
diff --git a/src/graphic_loading.c b/src/graphic_loading.c
index 0a65aaa..bb7d17e 100644
--- a/src/graphic_loading.c
+++ b/src/graphic_loading.c
@@ -6,174 +6,103 @@
 #include <stdbool.h>
 #include "ssd1306.h"
 #include "user_interface.h"
+#include "framebuffer.h"
 
-/* Tiny framebuffer */
-#define FBW DISPLAY_W
-#define FBH DISPLAY_H
-
-#define MIN(a,b) ((a)>(b)?(b):(a))
-#define MAX(a,b) ((a)>(b)?(a):(b))
-
-static uint8_t fb[(FBH/8)*FBW];
-
-/** Fill with a vertical pattern, 1 byte */
-void fb_fill(uint8_t pattern) {
-    memset(fb, pattern, sizeof(fb));
-}
+void show_loading_screen(uint8_t progress_percent, bool clear) {
+    // HACKS - GUI dev here
 
-void fb_clear() {
-    fb_fill(0);
-}
+    fb_clear();
+    fb_blit();
 
-void fb_px(uint8_t x, uint8_t y, uint8_t color) {
-    if (x >= FBW || y >= FBH) return;
-    const uint8_t row = y / 8;
-    const uint8_t rowrem = y % 8;
-    const uint16_t cell = (uint16_t) x + (uint16_t) row * FBW;
-    if (color) {
-        fb[cell] |= (1 << rowrem);
-    } else {
-        fb[cell] &= ~(1 << rowrem);
-    }
-}
+    const uint8_t icon[14] = {
+            0b11000011,
+            0b01100110,
+            0b01111110,
+            0b00111100,
+            0b00011000,
+            0b00111100,
+            0b01111110,
+            0b11111111,
+            0b11111111,
+            0b11111011,
+            0b11111111,
+            0b01111110,
+            0b00111100,
+            0b00011000,
+    };
 
-void fb_hline(uint8_t x, uint8_t y, uint8_t w, uint8_t color) {
-    if (x >= FBW || y >= FBH) return;
-    w = MIN(FBW - x, w);
-    const uint8_t row = y / 8;
-    const uint8_t rowrem = y % 8;
-    uint16_t cell = (uint16_t) x + (uint16_t) row * FBW;
-    for(uint8_t i = 0; i < w; i++) {
-        if (color) {
-            fb[cell] |= (1 << rowrem);
-        } else {
-            fb[cell] &= ~(1 << rowrem);
-        }
-        cell++;
-    }
-}
+#define ZIR_W 12
+#define ZIR_H 3
+    const uint8_t zirafa[ZIR_H * ZIR_W] = {
+            // levo
+            0b00000000,
+            0b00000000,
+            0b00000000,
+            0b00000000,
+            0b00000000,
+            0b00000000,
+            0b00000000, // vrsek
+            0b00011000,
+            0b00011111,
+            0b11111000,
+            0b00011111,
+            0b00001000,
+
+            0b00000000,
+            0b00000000,
+            0b00000000,
+            0b00000000,
+            0b00000000,
+            0b00000000,
+            0b00000000,
+            0b00000000,
+            0b00000000,
+            0b11111111,
+            0b00000000,
+            0b00000000,
+
+            0b00010000,
+            0b00001000,
+            0b11111000,
+            0b00011000,
+            0b11111000, // spodek
+            0b00011000,
+            0b00011000,
+            0b00011000,
+            0b11111000,
+            0b00011111,
+            0b11111000,
+            0b00000000,
 
-void fb_vline(uint8_t x, uint8_t y, uint8_t h, uint8_t color) {
-    if (x >= FBW || y >= FBH) return;
-    h = MIN(FBH - y - 1, h);
-    const uint8_t row = y / 8;
-    const uint8_t rowrem = y % 8;
-    uint16_t cell = (uint16_t) x + (uint16_t) row * FBW;
-
-    if (rowrem + h < 8) {
-        // all within one cell
-        uint8_t mask = (0xFF << rowrem) & (0xFF >> (h-rowrem));
-        if (color) {
-            fb[cell] |= mask;
-        } else {
-            fb[cell] &= ~mask;
-        }
-        return;
-    } else {
-        // First
-        uint8_t mask = (0xFF << rowrem);
-        if (color) {
-            fb[cell] |= mask;
-        } else {
-            fb[cell] &= ~mask;
-        }
-        h -= rowrem;
-
-        uint8_t whole_cells = h / 8;
-        h -= whole_cells * 8;
-        for(uint8_t i = 0; i < whole_cells; i++) {
-            cell += FBW;
-            if (color) {
-                fb[cell] = 0xFF;
-            } else {
-                fb[cell] = 0;
-            }
-        }
+    };
 
-        // last
-        mask = (0xFF >> (8-h));
-        if (color) {
-            fb[cell] |= mask;
-        } else {
-            fb[cell] &= ~mask;
+    int a = 10;
+    int b = 40;
+    for (;;) {
+        fb_bitmap(a, 0, ZIR_W, ZIR_H*8, zirafa, 0);
+        fb_bitmap(b, 16, 14, 8, icon, 0);
+        a++;
+        b++;
+        if(a>127) {
+            a = 0;
         }
-    }
-}
 
-void fb_rect(uint8_t x, uint8_t y, uint8_t w, uint8_t h, uint8_t color) {
-    if (x >= FBW || y >= FBH) return;
-    w = MIN(FBW - x - 1, w);
-    h = MIN(FBH - y - 1, h);
-    const uint8_t row = y / 8;
-    const uint8_t rowrem = y % 8;
-    uint16_t cell = (uint16_t) x + (uint16_t) row * FBW;
-
-    if (rowrem + h < 8) {
-        // all within one cell
-        uint8_t mask = (0xFF << rowrem) & (0xFF >> (8 - (h - rowrem)));
-
-        for(uint8_t i = 0; i < w; i++) {
-            if (color) {
-                fb[cell + i] |= mask;
-            } else {
-                fb[cell + i] &= ~mask;
-            }
-        }
-        return;
-    } else {
-        // First
-        uint8_t mask = (0xFF << rowrem);
-        for(uint8_t i = 0; i < w; i++) {
-            if (color) {
-                fb[cell + i] |= mask;
-            } else {
-                fb[cell + i] &= ~mask;
-            }
-        }
-        h -= 8 - rowrem;
-
-        uint8_t whole_cells = h / 8;
-        h -= whole_cells * 8;
-        for(uint8_t j = 0; j < whole_cells; j++) {
-            cell += FBW;
-            for(uint8_t i = 0; i < w; i++) {
-                if (color) {
-                    fb[cell + i] = 0xFF;
-                } else {
-                    fb[cell + i] = 0;
-                }
-            }
+        if(b>127) {
+            b = 0;
         }
+        fb_bitmap(a, 0, ZIR_W, ZIR_H*8, zirafa, 1);
+        fb_bitmap(b, 16, 14, 8, icon, 1);
 
-        cell += FBW;
-
-        // last
-        mask = (0xFF >> (8-h));
-        for(uint8_t i = 0; i < w; i++) {
-            if (color) {
-                fb[cell + i] |= mask;
-            } else {
-                fb[cell + i] &= ~mask;
-            }
-        }
+        fb_blit();
+        _delay_ms(100);
     }
-}
 
-void fb_bitmap(uint8_t x, uint8_t y, uint8_t w, uint8_t h, const uint8_t *map, uint8_t color) {
-    // TODO
-}
 
 
-void fb_blit() {
-    ssd1306_drawBuffer(0, 0, FBW, FBH, fb);
-}
 
-void show_loading_screen(uint8_t progress_percent, bool clear)
-{
-    // HACKS - GUI dev here
+    for(;;) {}
 
-    fb_clear();
-    fb_blit();
+    //
 
 #if 0
     int a = 0, b = 0, ai = 1, bi = 1;
@@ -220,8 +149,6 @@ void show_loading_screen(uint8_t progress_percent, bool clear)
     }
 #endif
 
-    for(;;) {}
-
 
     if (clear) {
         ssd1306_clearScreen();
diff --git a/src/main.c b/src/main.c
index 82501c1..70ee058 100644
--- a/src/main.c
+++ b/src/main.c
@@ -20,6 +20,9 @@ void __attribute__((noreturn)) main()
     init_user_interface();
 
     show_loading_screen(0, true);
+    while(1){}
+
+#if 0
 
     init_timebase();
     init_radiation();
@@ -48,6 +51,8 @@ void __attribute__((noreturn)) main()
             shutdown_due_to_weak_battery();
         }
     }
+
+#endif
 }