diff --git a/openrtx/include/interfaces/graphics.h b/openrtx/include/interfaces/graphics.h
index d9c8815f..6e6e04e6 100644
--- a/openrtx/include/interfaces/graphics.h
+++ b/openrtx/include/interfaces/graphics.h
@@ -226,13 +226,13 @@ void gfx_drawCircle(point_t start, uint16_t r, color_t color);
 /**
  * Prints text on the screen.
  * @param start: text line start point, in pixel coordinates.
- * @param text: text to print.
  * @param size: text font size, defined as enum.
  * @param alignment: text alignment type, defined as enum.
  * @param color: text color, in color_t format.
+ * @param fmt: printf style format string
  * @return text width and height as point_t coordinates
  */
-point_t gfx_print(point_t start, const char *text, fontSize_t size, textAlign_t alignment, color_t color);
+point_t gfx_print(point_t start, fontSize_t size, textAlign_t alignment, color_t color, const char* fmt, ... );
 
 /**
  * Prints an error message surrounded by a red box on the screen.
diff --git a/openrtx/src/graphics.c b/openrtx/src/graphics.c
index c0406797..3b188a92 100644
--- a/openrtx/src/graphics.c
+++ b/openrtx/src/graphics.c
@@ -27,6 +27,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <hwconfig.h>
+#include <stdarg.h>
 #include <interfaces/display.h>
 #include <interfaces/graphics.h>
 
@@ -381,9 +382,16 @@ static inline uint16_t get_reset_x(textAlign_t alignment, uint16_t line_size,
     return 0;
 }
 
-point_t gfx_print(point_t start, const char *text, fontSize_t size,
-                                 textAlign_t alignment, color_t color)
+point_t gfx_print(point_t start, fontSize_t size, textAlign_t alignment, 
+                  color_t color, const char *fmt, ... )
 {
+    va_list ap;
+    
+    char text[128];
+    
+    va_start(ap, fmt);
+    vsnprintf(text, sizeof(text)-1, fmt, ap);
+    va_end(ap);
 
     GFXfont f = fonts[size];
 
@@ -480,7 +488,7 @@ void gfx_printError(const char *text, fontSize_t size)
     point_t start = {0, SCREEN_HEIGHT/2 + 5};
 
     // Print the error message
-    point_t text_size = gfx_print(start, text, size, TEXT_ALIGN_CENTER, white);
+    point_t text_size = gfx_print(start, size, TEXT_ALIGN_CENTER, white, text);
     text_size.x += box_padding;
     text_size.y += box_padding;
     point_t box_start = {0, 0};
@@ -585,7 +593,6 @@ void gfx_drawSmeter(point_t start, uint16_t width, uint16_t height, float rssi,
     color_t white =  {255, 255, 255, 255};
     color_t yellow = {250, 180, 19 , 255};
     color_t red =    {255, 0,   0  , 255};
-    char buf[4] = { 0 };
 
     // S-level marks and numbers
     for(int i = 0; i < 11; i++)
@@ -595,11 +602,10 @@ void gfx_drawSmeter(point_t start, uint16_t width, uint16_t height, float rssi,
         point_t pixel_pos = {start.x + i * (width - 1) / 11, start.y};
         if (i == 10) {
             pixel_pos.x -= 8;
-            snprintf(buf, 4, "+%d", i);
+            gfx_print(pixel_pos, FONT_SIZE_5PT, TEXT_ALIGN_LEFT, color, "+%d", i);
         }
         else
-            snprintf(buf, 4, "%d", i);
-        gfx_print(pixel_pos, buf, FONT_SIZE_5PT, TEXT_ALIGN_LEFT, color);
+            gfx_print(pixel_pos, FONT_SIZE_5PT, TEXT_ALIGN_LEFT, color, "%d", i);
         if (i == 10) {
             pixel_pos.x += 8;
         }
@@ -608,7 +614,7 @@ void gfx_drawSmeter(point_t start, uint16_t width, uint16_t height, float rssi,
     }
 
     point_t pixel_pos = {start.x + width - 11, start.y};
-    gfx_print(pixel_pos, "+20", FONT_SIZE_5PT, TEXT_ALIGN_LEFT, red);
+    gfx_print(pixel_pos, FONT_SIZE_5PT, TEXT_ALIGN_LEFT, red, "+20");
     pixel_pos.x += 10;
     pixel_pos.y += height;
     gfx_setPixel(pixel_pos, red);
@@ -656,7 +662,6 @@ void gfx_drawGPSgraph(point_t start,
 {
     color_t white =  {255, 255, 255, 255};
     color_t yellow = {250, 180, 19 , 255};
-    char id_buf[5] = { 0 };
 
     // SNR Bars and satellite identifiers
     uint8_t bar_width = (width - 26) / 12;
@@ -668,9 +673,9 @@ void gfx_drawGPSgraph(point_t start,
                            start.y + (height - 8) - bar_height};
         color_t bar_color = (active_sats & 1 << (sats[i].id - 1)) ? yellow : white;
         gfx_drawRect(bar_pos, bar_width, bar_height, bar_color, true);
-        snprintf(id_buf, 5, "%2d ", sats[i].id);
         point_t id_pos = {bar_pos.x, start.y + height};
-        gfx_print(id_pos, id_buf, FONT_SIZE_5PT, TEXT_ALIGN_LEFT, bar_color);
+        gfx_print(id_pos, FONT_SIZE_5PT, TEXT_ALIGN_LEFT, 
+                  bar_color, "%2d ", sats[i].id);
     }
     uint8_t bars_width = 9 + 11 * (bar_width + 2);
     point_t left_line_end = {start.x, start.y + height - 9};
@@ -714,5 +719,5 @@ void gfx_drawGPScompass(point_t start,
     }
     // North indicator
     point_t n_pos = {start.x + radius - 3, start.y + 7};
-    gfx_print(n_pos, "N", FONT_SIZE_6PT, TEXT_ALIGN_LEFT, white);
+    gfx_print(n_pos, FONT_SIZE_6PT, TEXT_ALIGN_LEFT, white, "N");
 }
diff --git a/openrtx/src/ui/ui.c b/openrtx/src/ui/ui.c
index 1978c802..7b151f82 100644
--- a/openrtx/src/ui/ui.c
+++ b/openrtx/src/ui/ui.c
@@ -347,15 +347,13 @@ void ui_drawSplashScreen(bool centered)
         splash_origin.y = SCREEN_HEIGHT / 2 + 6;
     else
         splash_origin.y = SCREEN_HEIGHT / 4;
-    gfx_print(splash_origin, "OpenRTX", FONT_SIZE_12PT, TEXT_ALIGN_CENTER,
-              yellow_fab413);
+    gfx_print(splash_origin, FONT_SIZE_12PT, TEXT_ALIGN_CENTER, yellow_fab413, "OpenRTX");
     #else
     if(centered)
         splash_origin.y = SCREEN_HEIGHT / 2 - 6;
     else
         splash_origin.y = SCREEN_HEIGHT / 5;
-    gfx_print(splash_origin, "O P N\nR T X", FONT_SIZE_12PT, TEXT_ALIGN_CENTER,
-              yellow_fab413);
+    gfx_print(splash_origin, FONT_SIZE_12PT, TEXT_ALIGN_CENTER, yellow_fab413, "O P N\nR T X");
     #endif
 }
 
@@ -370,15 +368,15 @@ void _ui_drawLowBatteryScreen()
     point_t text_pos_2 = {0, SCREEN_HEIGHT * 2 / 3 + 16};
 
     gfx_print(text_pos_1,
-              "For emergency use",
               FONT_SIZE_6PT,
               TEXT_ALIGN_CENTER,
-              color_white);
+              color_white,
+              "For emergency use");
     gfx_print(text_pos_2,
-              "press any button.",
               FONT_SIZE_6PT,
               TEXT_ALIGN_CENTER,
-              color_white);
+              color_white,
+              "press any button.");
 }
 
 freq_t _ui_freq_add_digit(freq_t freq, uint8_t pos, uint8_t number)
diff --git a/openrtx/src/ui/ui_main.c b/openrtx/src/ui/ui_main.c
index 93cf9aaf..3404029e 100644
--- a/openrtx/src/ui/ui_main.c
+++ b/openrtx/src/ui/ui_main.c
@@ -35,11 +35,9 @@ void _ui_drawMainTop()
 {
 #ifdef HAS_RTC
     // Print clock on top bar
-    char clock_buf[9] = "";
-    snprintf(clock_buf, sizeof(clock_buf), "%02d:%02d:%02d", last_state.time.hour,
-             last_state.time.minute, last_state.time.second);
-    gfx_print(layout.top_pos, clock_buf, layout.top_font, TEXT_ALIGN_CENTER,
-              color_white);
+    gfx_print(layout.top_pos, layout.top_font, TEXT_ALIGN_CENTER,
+              color_white, "%02d:%02d:%02d", last_state.time.hour,
+              last_state.time.minute, last_state.time.second);
 #endif
 
     // Print battery icon on top bar, use 4 px padding
@@ -50,45 +48,41 @@ void _ui_drawMainTop()
     gfx_drawBattery(bat_pos, bat_width, bat_height, last_state.charge);
 
     // Print radio mode on top bar
-    char mode[4] = "";
     switch(last_state.channel.mode)
     {
         case FM:
-        strcpy(mode, "FM");
+        gfx_print(layout.top_pos, layout.top_font, TEXT_ALIGN_LEFT, 
+                  color_white, "FM");
         break;
         case DMR:
-        strcpy(mode, "DMR");
+        gfx_print(layout.top_pos, layout.top_font, TEXT_ALIGN_LEFT, 
+                  color_white, "DMR");
         break;
     }
-    gfx_print(layout.top_pos, mode, layout.top_font, TEXT_ALIGN_LEFT,
-              color_white);
 }
 
 void _ui_drawZoneChannel()
 {
-    char zone_buf[20] = "";
-    char channel_buf[25] = "";
-    if(!last_state.zone_enabled)
-        snprintf(zone_buf, sizeof(zone_buf), "zone: %.13s", "All channels");
-    else
-        snprintf(zone_buf, sizeof(zone_buf), "zone: %.13s", last_state.zone.name);
-    snprintf(channel_buf, sizeof(channel_buf), "  %03d: %.12s", last_state.channel_index,
-                                                             last_state.channel.name);
     // Print Zone name
-    gfx_print(layout.line1_pos, zone_buf, layout.line1_font, TEXT_ALIGN_LEFT, color_white);
+    if(!last_state.zone_enabled)
+        gfx_print(layout.line1_pos, layout.line1_font, TEXT_ALIGN_LEFT, 
+                  color_white, "zone: All channels");
+    else
+        gfx_print(layout.line1_pos, layout.line1_font, TEXT_ALIGN_LEFT, 
+                  color_white,  "zone: %.13s", last_state.zone.name);
     // Print Channel name
-    gfx_print(layout.line2_pos, channel_buf, layout.line2_font, TEXT_ALIGN_LEFT, color_white);
+    gfx_print(layout.line2_pos, layout.line2_font, TEXT_ALIGN_LEFT, 
+              color_white, "  %03d: %.12s", 
+              last_state.channel_index, last_state.channel.name);
 }
 
 void _ui_drawFrequency()
 {
     // Print big numbers frequency
-    char freq_buf[15] = "";
-    snprintf(freq_buf, sizeof(freq_buf), "%03lu.%05lu",
-             (unsigned long)last_state.channel.rx_frequency/1000000,
-             (unsigned long)last_state.channel.rx_frequency%1000000/10);
-    gfx_print(layout.line3_pos, freq_buf, layout.line3_font, TEXT_ALIGN_CENTER,
-              color_white);
+    gfx_print(layout.line3_pos, layout.line3_font, TEXT_ALIGN_CENTER, 
+              color_white, "%03lu.%05lu",
+              (unsigned long)last_state.channel.rx_frequency/1000000,
+              (unsigned long)last_state.channel.rx_frequency%1000000/10);
 }
 
 void _ui_drawVFOMiddleInput(ui_state_t* ui_state)
@@ -97,17 +91,15 @@ void _ui_drawVFOMiddleInput(ui_state_t* ui_state)
     uint8_t insert_pos = ui_state->input_position + 3;
     if(ui_state->input_position > 3) insert_pos += 1;
     char input_char = ui_state->input_number + '0';
-    char freq_buf[15] = "";
 
     if(ui_state->input_set == SET_RX)
     {
         if(ui_state->input_position == 0)
         {
-            snprintf(freq_buf, sizeof(freq_buf), ">Rx:%03lu.%05lu",
-                     (unsigned long)ui_state->new_rx_frequency/1000000,
-                     (unsigned long)ui_state->new_rx_frequency%1000000/10);
-            gfx_print(layout.line2_pos, freq_buf, layout.input_font, TEXT_ALIGN_CENTER,
-                      color_white);
+            gfx_print(layout.line2_pos, layout.input_font, TEXT_ALIGN_CENTER,
+                      color_white, ">Rx:%03lu.%05lu",
+                      (unsigned long)ui_state->new_rx_frequency/1000000,
+                      (unsigned long)ui_state->new_rx_frequency%1000000/10);
         }
         else
         {
@@ -115,38 +107,35 @@ void _ui_drawVFOMiddleInput(ui_state_t* ui_state)
             if(ui_state->input_position == 1)
                 strcpy(ui_state->new_rx_freq_buf, ">Rx:___._____");
             ui_state->new_rx_freq_buf[insert_pos] = input_char;
-            gfx_print(layout.line2_pos, ui_state->new_rx_freq_buf, layout.input_font, TEXT_ALIGN_CENTER,
-                      color_white);
+            gfx_print(layout.line2_pos, layout.input_font, TEXT_ALIGN_CENTER,
+                      color_white, ui_state->new_rx_freq_buf);
         }
-        snprintf(freq_buf, sizeof(freq_buf), " Tx:%03lu.%05lu",
-                 (unsigned long)last_state.channel.tx_frequency/1000000,
-                 (unsigned long)last_state.channel.tx_frequency%1000000/10);
-        gfx_print(layout.line3_pos, freq_buf, layout.input_font, TEXT_ALIGN_CENTER,
-                  color_white);
+        gfx_print(layout.line3_pos, layout.input_font, TEXT_ALIGN_CENTER,
+                  color_white, " Tx:%03lu.%05lu",
+                  (unsigned long)last_state.channel.tx_frequency/1000000,
+                  (unsigned long)last_state.channel.tx_frequency%1000000/10);
     }
     else if(ui_state->input_set == SET_TX)
     {
-        snprintf(freq_buf, sizeof(freq_buf), " Rx:%03lu.%05lu",
-                 (unsigned long)ui_state->new_rx_frequency/1000000,
-                 (unsigned long)ui_state->new_rx_frequency%1000000/10);
-        gfx_print(layout.line2_pos, freq_buf, layout.input_font, TEXT_ALIGN_CENTER,
-                  color_white);
+        gfx_print(layout.line2_pos, layout.input_font, TEXT_ALIGN_CENTER,
+                  color_white, " Rx:%03lu.%05lu",
+                  (unsigned long)ui_state->new_rx_frequency/1000000,
+                  (unsigned long)ui_state->new_rx_frequency%1000000/10);
         // Replace Rx frequency with underscorses
         if(ui_state->input_position == 0)
         {
-            snprintf(freq_buf, sizeof(freq_buf), ">Tx:%03lu.%05lu",
-                     (unsigned long)ui_state->new_rx_frequency/1000000,
-                     (unsigned long)ui_state->new_rx_frequency%1000000/10);
-            gfx_print(layout.line3_pos, freq_buf, layout.input_font, TEXT_ALIGN_CENTER,
-                      color_white);
+            gfx_print(layout.line3_pos, layout.input_font, TEXT_ALIGN_CENTER,
+                      color_white, ">Tx:%03lu.%05lu",
+                      (unsigned long)ui_state->new_rx_frequency/1000000,
+                      (unsigned long)ui_state->new_rx_frequency%1000000/10);
         }
         else
         {
             if(ui_state->input_position == 1)
                 strcpy(ui_state->new_tx_freq_buf, ">Tx:___._____");
             ui_state->new_tx_freq_buf[insert_pos] = input_char;
-            gfx_print(layout.line3_pos, ui_state->new_tx_freq_buf, layout.input_font, TEXT_ALIGN_CENTER,
-                      color_white);
+            gfx_print(layout.line3_pos, layout.input_font, TEXT_ALIGN_CENTER,
+                      color_white, ui_state->new_tx_freq_buf);
         }
     }
 }
diff --git a/openrtx/src/ui/ui_menu.c b/openrtx/src/ui/ui_menu.c
index f60bd1b6..f23d1499 100644
--- a/openrtx/src/ui/ui_menu.c
+++ b/openrtx/src/ui/ui_menu.c
@@ -50,7 +50,7 @@ void _ui_drawMenuList(uint8_t selected, int (*getCurrentEntry)(char *buf, uint8_
                 point_t rect_pos = {0, pos.y - layout.menu_h + 3};
                 gfx_drawRect(rect_pos, SCREEN_WIDTH, layout.menu_h, color_white, true); 
             }
-            gfx_print(pos, entry_buf, layout.menu_font, TEXT_ALIGN_LEFT, text_color);
+            gfx_print(pos, layout.menu_font, TEXT_ALIGN_LEFT, text_color, entry_buf);
             pos.y += layout.menu_h;
         }
     }
@@ -93,8 +93,8 @@ void _ui_drawMenuListValue(ui_state_t* ui_state, uint8_t selected,
                 point_t rect_pos = {0, pos.y - layout.menu_h + 3};
                 gfx_drawRect(rect_pos, SCREEN_WIDTH, layout.menu_h, color_white, full_rect); 
             }
-            gfx_print(pos, entry_buf, layout.menu_font, TEXT_ALIGN_LEFT, text_color);
-            gfx_print(pos, value_buf, layout.menu_font, TEXT_ALIGN_RIGHT, text_color);
+            gfx_print(pos, layout.menu_font, TEXT_ALIGN_LEFT, text_color, entry_buf);
+            gfx_print(pos, layout.menu_font, TEXT_ALIGN_RIGHT, text_color, value_buf);
             pos.y += layout.menu_h;
         }
     }
@@ -252,8 +252,8 @@ void _ui_drawMenuTop(ui_state_t* ui_state)
 {
     gfx_clearScreen();
     // Print "Menu" on top bar
-    gfx_print(layout.top_pos, "Menu", layout.top_font,
-              TEXT_ALIGN_CENTER, color_white);
+    gfx_print(layout.top_pos, layout.top_font, TEXT_ALIGN_CENTER, 
+              color_white, "Menu");
     // Print menu entries
     _ui_drawMenuList(ui_state->menu_selected, _ui_getMenuTopEntryName);
 }
@@ -262,8 +262,8 @@ void _ui_drawMenuZone(ui_state_t* ui_state)
 {
     gfx_clearScreen();
     // Print "Zone" on top bar
-    gfx_print(layout.top_pos, "Zone", layout.top_font,
-              TEXT_ALIGN_CENTER, color_white);
+    gfx_print(layout.top_pos, layout.top_font, TEXT_ALIGN_CENTER, 
+              color_white, "Zone");
     // Print zone entries
     _ui_drawMenuList(ui_state->menu_selected, _ui_getZoneName);
 }
@@ -272,8 +272,8 @@ void _ui_drawMenuChannel(ui_state_t* ui_state)
 {
     gfx_clearScreen();
     // Print "Channel" on top bar
-    gfx_print(layout.top_pos, "Channels", layout.top_font,
-              TEXT_ALIGN_CENTER, color_white);
+    gfx_print(layout.top_pos, layout.top_font, TEXT_ALIGN_CENTER, 
+              color_white, "Channels");
     // Print channel entries
     _ui_drawMenuList(ui_state->menu_selected, _ui_getChannelName);
 }
@@ -282,8 +282,8 @@ void _ui_drawMenuContacts(ui_state_t* ui_state)
 {
     gfx_clearScreen();
     // Print "Contacts" on top bar
-    gfx_print(layout.top_pos, "Contacts", layout.top_font,
-              TEXT_ALIGN_CENTER, color_white);
+    gfx_print(layout.top_pos, layout.top_font, TEXT_ALIGN_CENTER, 
+              color_white, "Contacts");
     // Print contact entries
     _ui_drawMenuList(ui_state->menu_selected, _ui_getContactName);
 }
@@ -292,21 +292,21 @@ void _ui_drawMenuContacts(ui_state_t* ui_state)
 void _ui_drawMenuGPS()
 {
     char *fix_buf, *type_buf;
-    char lat_buf[12] = { 0 };
-    char lon_buf[12] = { 0 };
-    char data_buf[25] = { 0 };
     gfx_clearScreen();
     // Print "GPS" on top bar
-    gfx_print(layout.top_pos, "GPS", layout.top_font,
-              TEXT_ALIGN_CENTER, color_white);
+    gfx_print(layout.top_pos, layout.top_font, TEXT_ALIGN_CENTER, 
+              color_white, "GPS");
     point_t fix_pos = {layout.line2_pos.x, SCREEN_HEIGHT * 2 / 5};
     // Print GPS status, if no fix, hide details
     if(!last_state.settings.gps_enabled)
-        gfx_print(fix_pos, "GPS OFF", layout.line3_font, TEXT_ALIGN_CENTER, color_white);
+        gfx_print(fix_pos, layout.line3_font, TEXT_ALIGN_CENTER, 
+                  color_white, "GPS OFF");
     else if (last_state.gps_data.fix_quality == 0)
-        gfx_print(fix_pos, "No Fix", layout.line3_font, TEXT_ALIGN_CENTER, color_white);
+        gfx_print(fix_pos, layout.line3_font, TEXT_ALIGN_CENTER, 
+                  color_white, "No Fix");
     else if (last_state.gps_data.fix_quality == 6)
-        gfx_print(fix_pos, "Fix Lost", layout.line3_font, TEXT_ALIGN_CENTER, color_white);
+        gfx_print(fix_pos, layout.line3_font, TEXT_ALIGN_CENTER, 
+                  color_white, "Fix Lost");
     else
     {
         switch(last_state.gps_data.fix_quality)
@@ -340,29 +340,26 @@ void _ui_drawMenuGPS()
                 type_buf = "ERROR";
                 break;
         }
-        gfx_print(layout.line1_pos, fix_buf, layout.top_font, TEXT_ALIGN_LEFT,
-                  color_white);
-        gfx_print(layout.line1_pos, "N     ", layout.top_font, TEXT_ALIGN_CENTER,
-                  color_white);
-        snprintf(lat_buf, 12, "%8.6f", last_state.gps_data.latitude);
-        gfx_print(layout.line1_pos, lat_buf, layout.top_font, TEXT_ALIGN_RIGHT,
-                  color_white);
-        gfx_print(layout.line2_pos, type_buf, layout.top_font, TEXT_ALIGN_LEFT,
-                  color_white);
+        gfx_print(layout.line1_pos, layout.top_font, TEXT_ALIGN_LEFT,
+                  color_white, fix_buf);
+        gfx_print(layout.line1_pos, layout.top_font, TEXT_ALIGN_CENTER,
+                  color_white, "N     ");
+        gfx_print(layout.line1_pos, layout.top_font, TEXT_ALIGN_RIGHT,
+                  color_white, "%8.6f", last_state.gps_data.latitude);
+        gfx_print(layout.line2_pos, layout.top_font, TEXT_ALIGN_LEFT,
+                  color_white, type_buf);
         // Convert from signed longitude, to unsigned + direction
         float longitude = last_state.gps_data.longitude;
         char *direction = (longitude < 0) ? "W     " : "E     ";
         longitude = (longitude < 0) ? -longitude : longitude;
-        gfx_print(layout.line2_pos, direction, layout.top_font, TEXT_ALIGN_CENTER,
-                  color_white);
-        snprintf(lon_buf, 12, "%8.6f", longitude);
-        gfx_print(layout.line2_pos, lon_buf, layout.top_font, TEXT_ALIGN_RIGHT,
-                  color_white);
-        snprintf(data_buf, 25, "S %4.1fkm/h  A %4.1fm",
-                 last_state.gps_data.speed,
-                 last_state.gps_data.altitude);
-        gfx_print(layout.bottom_pos, data_buf, layout.bottom_font, TEXT_ALIGN_CENTER,
-                  color_white);
+        gfx_print(layout.line2_pos, layout.top_font, TEXT_ALIGN_CENTER,
+                  color_white, direction);
+        gfx_print(layout.line2_pos, layout.top_font, TEXT_ALIGN_RIGHT,
+                  color_white, "%8.6f", longitude);
+        gfx_print(layout.bottom_pos, layout.bottom_font, TEXT_ALIGN_CENTER,
+                  color_white, "S %4.1fkm/h  A %4.1fm",
+                  last_state.gps_data.speed,
+                  last_state.gps_data.altitude);
     }
     // Draw compass
     point_t compass_pos = {layout.horizontal_pad * 2, SCREEN_HEIGHT / 2};
@@ -385,8 +382,8 @@ void _ui_drawMenuSettings(ui_state_t* ui_state)
 {
     gfx_clearScreen();
     // Print "Settings" on top bar
-    gfx_print(layout.top_pos, "Settings", layout.top_font,
-              TEXT_ALIGN_CENTER, color_white);
+    gfx_print(layout.top_pos, layout.top_font, TEXT_ALIGN_CENTER, 
+              color_white, "Settings");
     // Print menu entries
     _ui_drawMenuList(ui_state->menu_selected, _ui_getSettingsEntryName);
 }
@@ -395,8 +392,8 @@ void _ui_drawMenuInfo(ui_state_t* ui_state)
 {
     gfx_clearScreen();
     // Print "Info" on top bar
-    gfx_print(layout.top_pos, "Info", layout.top_font,
-              TEXT_ALIGN_CENTER, color_white);
+    gfx_print(layout.top_pos, layout.top_font, TEXT_ALIGN_CENTER, 
+              color_white, "Info");
     // Print menu entries
     _ui_drawMenuListValue(ui_state, ui_state->menu_selected, _ui_getInfoEntryName,
                            _ui_getInfoValueName);
@@ -409,14 +406,14 @@ void _ui_drawMenuAbout()
     if(SCREEN_HEIGHT >= 100)
         ui_drawSplashScreen(false);
     else
-        gfx_print(openrtx_pos, "OpenRTX", layout.line3_font, TEXT_ALIGN_CENTER, color_white);
-    char author_buf[MAX_ENTRY_LEN] = "";
+        gfx_print(openrtx_pos, layout.line3_font, TEXT_ALIGN_CENTER, 
+                  color_white, "OpenRTX");
     uint8_t line_h = layout.menu_h;
     point_t pos = {SCREEN_WIDTH / 7, SCREEN_HEIGHT - (line_h * (author_num - 1)) - 5};
     for(int author = 0; author < author_num; author++)
     {
-        snprintf(author_buf, MAX_ENTRY_LEN, "%s", authors[author]);
-        gfx_print(pos, author_buf, layout.top_font, TEXT_ALIGN_LEFT, color_white);
+        gfx_print(pos, layout.top_font, TEXT_ALIGN_LEFT, 
+                  color_white, "%s", authors[author]);
         pos.y += line_h;
     }
 }
@@ -425,8 +422,8 @@ void _ui_drawSettingsDisplay(ui_state_t* ui_state)
 {
     gfx_clearScreen();
     // Print "Display" on top bar
-    gfx_print(layout.top_pos, "Display", layout.top_font,
-              TEXT_ALIGN_CENTER, color_white);
+    gfx_print(layout.top_pos, layout.top_font, TEXT_ALIGN_CENTER, 
+              color_white, "Display");
     // Print display settings entries
     _ui_drawMenuListValue(ui_state, ui_state->menu_selected, _ui_getDisplayEntryName,
                            _ui_getDisplayValueName);
@@ -437,8 +434,8 @@ void _ui_drawSettingsGPS(ui_state_t* ui_state)
 {
     gfx_clearScreen();
     // Print "GPS Settings" on top bar
-    gfx_print(layout.top_pos, "GPS Settings", layout.top_font,
-              TEXT_ALIGN_CENTER, color_white);
+    gfx_print(layout.top_pos, layout.top_font, TEXT_ALIGN_CENTER, 
+              color_white, "GPS Settings");
     // Print display settings entries
     _ui_drawMenuListValue(ui_state, ui_state->menu_selected, 
                           _ui_getSettingsGPSEntryName,
@@ -451,19 +448,15 @@ void _ui_drawSettingsTimeDate()
 {
     gfx_clearScreen();
     // Print "Time&Date" on top bar
-    gfx_print(layout.top_pos, "Time&Date", layout.top_font,
-              TEXT_ALIGN_CENTER, color_white);
+    gfx_print(layout.top_pos, layout.top_font, TEXT_ALIGN_CENTER, 
+              color_white, "Time&Date");
     // Print current time and date
-    char date_buf[10] = "";
-    char time_buf[10] = "";
-    snprintf(date_buf, sizeof(date_buf), "%02d/%02d/%02d", 
-             last_state.time.date, last_state.time.month, last_state.time.year);
-    snprintf(time_buf, sizeof(time_buf), "%02d:%02d:%02d", 
-             last_state.time.hour, last_state.time.minute, last_state.time.second);
-    gfx_print(layout.line2_pos, date_buf, layout.input_font, TEXT_ALIGN_CENTER,
-              color_white);
-    gfx_print(layout.line3_pos, time_buf, layout.input_font, TEXT_ALIGN_CENTER,
-              color_white);
+    gfx_print(layout.line2_pos, layout.input_font, TEXT_ALIGN_CENTER,
+              color_white, "%02d/%02d/%02d", 
+              last_state.time.date, last_state.time.month, last_state.time.year);
+    gfx_print(layout.line3_pos, layout.input_font, TEXT_ALIGN_CENTER,
+              color_white, "%02d:%02d:%02d", 
+              last_state.time.hour, last_state.time.minute, last_state.time.second);
 }
 
 void _ui_drawSettingsTimeDateSet(ui_state_t* ui_state)
@@ -472,8 +465,8 @@ void _ui_drawSettingsTimeDateSet(ui_state_t* ui_state)
 
     gfx_clearScreen();
     // Print "Time&Date" on top bar
-    gfx_print(layout.top_pos, "Time&Date", layout.top_font,
-              TEXT_ALIGN_CENTER, color_white);
+    gfx_print(layout.top_pos, layout.top_font, TEXT_ALIGN_CENTER, 
+              color_white, "Time&Date");
     if(ui_state->input_position <= 0)
     {
         strcpy(ui_state->new_date_buf, "__/__/__");
@@ -500,27 +493,25 @@ void _ui_drawSettingsTimeDateSet(ui_state_t* ui_state)
             ui_state->new_time_buf[pos] = input_char; 
         }
     }
-    gfx_print(layout.line2_pos, ui_state->new_date_buf, layout.input_font, TEXT_ALIGN_CENTER,
-              color_white);
-    gfx_print(layout.line3_pos, ui_state->new_time_buf, layout.input_font, TEXT_ALIGN_CENTER,
-              color_white);
+    gfx_print(layout.line2_pos, layout.input_font, TEXT_ALIGN_CENTER,
+              color_white, ui_state->new_date_buf);
+    gfx_print(layout.line3_pos, layout.input_font, TEXT_ALIGN_CENTER,
+              color_white, ui_state->new_time_buf);
 }
 #endif
 
 bool _ui_drawMacroMenu() {
         // Header
-        gfx_print(layout.top_pos, "Macro Menu", layout.top_font, TEXT_ALIGN_CENTER,
-                  color_white);
+        gfx_print(layout.top_pos, layout.top_font, TEXT_ALIGN_CENTER,
+                  color_white, "Macro Menu");
         // First row
-        gfx_print(layout.line1_pos, "1", layout.top_font, TEXT_ALIGN_LEFT,
-                  yellow_fab413);
-        char code_str[11] = { 0 };
-        snprintf(code_str, 11, "  %6.1f",
-                 ctcss_tone[last_state.channel.fm.txTone]/10.0f);
-        gfx_print(layout.line1_pos, code_str, layout.top_font, TEXT_ALIGN_LEFT,
-                  color_white);
-        gfx_print(layout.line1_pos, "2       ", layout.top_font, TEXT_ALIGN_CENTER,
-                  yellow_fab413);
+        gfx_print(layout.line1_pos, layout.top_font, TEXT_ALIGN_LEFT,
+                  yellow_fab413, "1");
+        gfx_print(layout.line1_pos, layout.top_font, TEXT_ALIGN_LEFT,
+                  color_white, "  %6.1f",
+                  ctcss_tone[last_state.channel.fm.txTone]/10.0f);
+        gfx_print(layout.line1_pos, layout.top_font, TEXT_ALIGN_CENTER,
+                  yellow_fab413, "2       ");
         char encdec_str[9] = { 0 };
         bool tone_tx_enable = last_state.channel.fm.txToneEn;
         bool tone_rx_enable = last_state.channel.fm.rxToneEn;
@@ -532,19 +523,18 @@ bool _ui_drawMacroMenu() {
             snprintf(encdec_str, 9, "      D ");
         else
             snprintf(encdec_str, 9, "        ");
-        gfx_print(layout.line1_pos, encdec_str, layout.top_font, TEXT_ALIGN_CENTER,
-                  color_white);
-        gfx_print(layout.line1_pos, "3        ", layout.top_font, TEXT_ALIGN_RIGHT,
-                  yellow_fab413);
-        char pow_str[9] = { 0 };
-        snprintf(pow_str, 9, "%.1gW", last_state.channel.power);
-        gfx_print(layout.line1_pos, pow_str, layout.top_font, TEXT_ALIGN_RIGHT,
-                  color_white);
+        gfx_print(layout.line1_pos, layout.top_font, TEXT_ALIGN_CENTER,
+                  color_white, encdec_str);
+        gfx_print(layout.line1_pos, layout.top_font, TEXT_ALIGN_RIGHT,
+                  yellow_fab413, "3        ");
+        gfx_print(layout.line1_pos, layout.top_font, TEXT_ALIGN_RIGHT,
+                  color_white, "%.1gW", last_state.channel.power);
         // Second row
         // Calculate symmetric second row position, line2_pos is asymmetric like main screen
-        point_t pos_2 = {layout.line1_pos.x, layout.line1_pos.y + (layout.line3_pos.y - layout.line1_pos.y)/2};
-        gfx_print(pos_2, "4", layout.top_font, TEXT_ALIGN_LEFT,
-                  yellow_fab413);
+        point_t pos_2 = {layout.line1_pos.x, layout.line1_pos.y + 
+                        (layout.line3_pos.y - layout.line1_pos.y)/2};
+        gfx_print(pos_2, layout.top_font, TEXT_ALIGN_LEFT,
+                  yellow_fab413, "4");
         char bw_str[8] = { 0 };
         switch (last_state.channel.bandwidth)
         {
@@ -558,10 +548,10 @@ bool _ui_drawMacroMenu() {
                 snprintf(bw_str, 8, "     25");
                 break;
         }
-        gfx_print(pos_2, bw_str, layout.top_font, TEXT_ALIGN_LEFT,
-                  color_white);
-        gfx_print(pos_2, "5       ", layout.top_font, TEXT_ALIGN_CENTER,
-                  yellow_fab413);
+        gfx_print(pos_2, layout.top_font, TEXT_ALIGN_LEFT,
+                  color_white, bw_str);
+        gfx_print(pos_2, layout.top_font, TEXT_ALIGN_CENTER,
+                  yellow_fab413, "5       ");
         char mode_str[9] = "";
         switch(last_state.channel.mode)
         {
@@ -572,25 +562,25 @@ bool _ui_drawMacroMenu() {
             snprintf(mode_str, 9,"     DMR");
             break;
         }
-        gfx_print(pos_2, mode_str, layout.top_font, TEXT_ALIGN_CENTER,
-                  color_white);
-        gfx_print(pos_2, "6        ", layout.top_font, TEXT_ALIGN_RIGHT,
-                  yellow_fab413);
-        gfx_print(pos_2, "Lck", layout.top_font, TEXT_ALIGN_RIGHT,
-                  color_white);
+        gfx_print(pos_2, layout.top_font, TEXT_ALIGN_CENTER,
+                  color_white, mode_str);
+        gfx_print(pos_2, layout.top_font, TEXT_ALIGN_RIGHT,
+                  yellow_fab413, "6        ");
+        gfx_print(pos_2, layout.top_font, TEXT_ALIGN_RIGHT,
+                  color_white, "Lck");
         // Third row
-        gfx_print(layout.line3_pos, "7", layout.top_font, TEXT_ALIGN_LEFT,
-                  yellow_fab413);
-        gfx_print(layout.line3_pos, "    B+", layout.top_font, TEXT_ALIGN_LEFT,
-                  color_white);
-        gfx_print(layout.line3_pos, "8       ", layout.top_font, TEXT_ALIGN_CENTER,
-                  yellow_fab413);
-        gfx_print(layout.line3_pos, "     B-", layout.top_font, TEXT_ALIGN_CENTER,
-                  color_white);
-        gfx_print(layout.line3_pos, "9        ", layout.top_font, TEXT_ALIGN_RIGHT,
-                  yellow_fab413);
-        gfx_print(layout.line3_pos, "Sav", layout.top_font, TEXT_ALIGN_RIGHT,
-                  color_white);
+        gfx_print(layout.line3_pos, layout.top_font, TEXT_ALIGN_LEFT,
+                  yellow_fab413, "7");
+        gfx_print(layout.line3_pos, layout.top_font, TEXT_ALIGN_LEFT,
+                  color_white, "    B+");
+        gfx_print(layout.line3_pos, layout.top_font, TEXT_ALIGN_CENTER,
+                  yellow_fab413, "8       ");
+        gfx_print(layout.line3_pos, layout.top_font, TEXT_ALIGN_CENTER,
+                  color_white, "     B-");
+        gfx_print(layout.line3_pos, layout.top_font, TEXT_ALIGN_RIGHT,
+                  yellow_fab413, "9        ");
+        gfx_print(layout.line3_pos, layout.top_font, TEXT_ALIGN_RIGHT,
+                  color_white, "Sav");
         // Smeter bar
         float rssi = last_state.rssi;
         float squelch = last_state.sqlLevel / 16.0f;
diff --git a/tests/platform/MDx_display_benchmark.c b/tests/platform/MDx_display_benchmark.c
index fc84d51a..3baf8df6 100644
--- a/tests/platform/MDx_display_benchmark.c
+++ b/tests/platform/MDx_display_benchmark.c
@@ -79,8 +79,8 @@ uint64_t benchmark(uint32_t n)
         color_t color_red = {255, 0, 0, 255};
         color_t color_white = {255, 255, 255, 255};
         gfx_drawRect(origin, 160, 20, color_red, 1);
-        char *buffer = "KEK";
-        gfx_print(origin, buffer, FONT_SIZE_24PT, TEXT_ALIGN_LEFT,color_white);
+        gfx_print(origin, buffer, FONT_SIZE_24PT, TEXT_ALIGN_LEFT,
+                  color_white, "KEK");
 
         dummy += kbd_getKeys();
 
diff --git a/tests/platform/gpio_demo.c b/tests/platform/gpio_demo.c
index b6990f1c..556c9272 100644
--- a/tests/platform/gpio_demo.c
+++ b/tests/platform/gpio_demo.c
@@ -37,7 +37,7 @@ void printBits(uint16_t value, point_t pos)
     }
 
     color_t color_white = {255, 255, 255};
-    gfx_print(pos, buf, FONT_SIZE_1, TEXT_ALIGN_LEFT, color_white);
+    gfx_print(pos, FONT_SIZE_1, TEXT_ALIGN_LEFT, color_white, buf);
 }
 
 int main(void)
diff --git a/tests/platform/gui_demo.c b/tests/platform/gui_demo.c
index b0154267..0e25187c 100644
--- a/tests/platform/gui_demo.c
+++ b/tests/platform/gui_demo.c
@@ -43,9 +43,9 @@ int main(void)
     // Print splash screen
     point_t splash_origin = {0, SCREEN_HEIGHT / 2};
     color_t color_yellow_fab413 = {250, 180, 19};
-    char *splash_buf = "OpenRTX";
     gfx_clearScreen();
-    gfx_print(splash_origin, splash_buf, FONT_SIZE_4, TEXT_ALIGN_CENTER, color_yellow_fab413);
+    gfx_print(splash_origin, FONT_SIZE_4, TEXT_ALIGN_CENTER,
+              color_yellow_fab413, "OpenRTX");
     gfx_render();
     while(gfx_renderingInProgress());
     OSTimeDlyHMSM(0u, 0u, 1u, 0u, OS_OPT_TIME_HMSM_STRICT, &os_err);
diff --git a/tests/platform/kek_demo.c b/tests/platform/kek_demo.c
index 0939838f..05c96bb9 100644
--- a/tests/platform/kek_demo.c
+++ b/tests/platform/kek_demo.c
@@ -98,8 +98,8 @@ static void gfxThread(void *arg)
         color_t color_red = {255, 0, 0};
         color_t color_white = {255, 255, 255};
         gfx_drawRect(origin, SCREEN_WIDTH, 20, color_red, 1);
-        char *buffer = "KEK";
-        gfx_print(origin, buffer, FONT_SIZE_4, TEXT_ALIGN_LEFT,color_white);
+        gfx_print(origin, FONT_SIZE_4, TEXT_ALIGN_LEFT, 
+                  color_white, "KEK");
         gfx_render();
         while(gfx_renderingInProgress()) ;
         pos += 20;
diff --git a/tests/platform/keyboard_demo.c b/tests/platform/keyboard_demo.c
index 77ede4ec..fdb05f07 100644
--- a/tests/platform/keyboard_demo.c
+++ b/tests/platform/keyboard_demo.c
@@ -44,11 +44,10 @@ void *print_keys(keyboard_t keys) {
     //count set bits to check how many keys are being pressed
     int i = __builtin_popcount(keys);
     while (i > 0) {
-        char *buf[15];
         //position of the first set bit
         int pos = __builtin_ctz(keys);
-        sprintf(buf, "Pressed: %s", keys_list[pos + 1]);
-        gfx_print(origin, buf, FONT_SIZE_8PT, TEXT_ALIGN_LEFT, color_green);
+        gfx_print(origin, FONT_SIZE_8PT, TEXT_ALIGN_LEFT, 
+                  color_green, "Pressed: %s", keys_list[pos + 1]);
         origin.y += 9;
         //unset the bit we already handled
         keys &= ~(1 << pos);
@@ -78,12 +77,11 @@ int main(void) {
 
     point_t title_origin = {0, SCREEN_HEIGHT / 9};
 
-    char *title_buf = "Keyboard demo";
-
     // UI update infinite loop
     while (1) {
         gfx_clearScreen();
-        gfx_print(title_origin, title_buf, FONT_SIZE_8PT, TEXT_ALIGN_CENTER, color_red);
+        gfx_print(title_origin, FONT_SIZE_8PT, TEXT_ALIGN_CENTER, 
+                  color_red, "Keyboard demo");
         keyboard_t keys = kbd_getKeys();
         if (keys != 0)
             print_keys(keys);
diff --git a/tests/platform/platform_demo.c b/tests/platform/platform_demo.c
index efb981e2..cd25612a 100644
--- a/tests/platform/platform_demo.c
+++ b/tests/platform/platform_demo.c
@@ -33,19 +33,18 @@ void platform_test()
     point_t pos_line2 = {0, 9};
     point_t pos_line3 = {0, 17};
     color_t color_white = {255, 255, 255};
-    char *buf = "Platform Test";
-    gfx_print(pos_line1, buf, FONT_SIZE_1, TEXT_ALIGN_LEFT, color_white);
+    gfx_print(pos_line1, FONT_SIZE_1, TEXT_ALIGN_LEFT,
+              color_white, "Platform Test");
     float vBat = platform_getVbat();
     float micLevel = platform_getMicLevel();
     float volumeLevel = platform_getVolumeLevel();
     uint8_t currentCh = platform_getChSelector();
     bool ptt = platform_getPttStatus();
-    char buf2[26] = "";
-    snprintf(buf2, sizeof(buf2), "bat:%.2f mic:%.2f", vBat, micLevel);
-    char buf3[26] = "";
-    snprintf(buf3, sizeof(buf3), "vol:%.2f ch:%d ptt:%s", volumeLevel, currentCh, ptt?"on":"off");
-    gfx_print(pos_line2, buf2, FONT_SIZE_1, TEXT_ALIGN_LEFT, color_white);
-    gfx_print(pos_line3, buf3, FONT_SIZE_1, TEXT_ALIGN_LEFT, color_white);
+    gfx_print(pos_line2, FONT_SIZE_1, TEXT_ALIGN_LEFT, 
+              color_white, "bat:%.2f mic:%.2f", vBat, micLevel);
+    gfx_print(pos_line3, FONT_SIZE_1, TEXT_ALIGN_LEFT, 
+              color_white, "vol:%.2f ch:%d ptt:%s", volumeLevel, 
+              currentCh, ptt?"on":"off");
     gfx_render();
     while(gfx_renderingInProgress());
     OSTimeDlyHMSM(0u, 0u, 0u, 250u, OS_OPT_TIME_HMSM_STRICT, &os_err);
@@ -61,7 +60,6 @@ int main(void)
 
     point_t origin = {0, SCREEN_HEIGHT / 2};
     color_t color_yellow = {250, 180, 19};
-    char *buffer = "OpenRTX";
 
     OS_ERR os_err;
 
@@ -69,7 +67,8 @@ int main(void)
     while(1)
     {
         gfx_clearScreen();
-        gfx_print(origin, buffer, FONT_SIZE_4, TEXT_ALIGN_CENTER, color_yellow);
+        gfx_print(origin, FONT_SIZE_4, TEXT_ALIGN_CENTER, 
+                  color_yellow, "OpenRTX");
         //gfx_render();
         //while(gfx_renderingInProgress());
         platform_test();