diff --git a/Core/Src/home_screen.c b/Core/Src/home_screen.c
index f8fdc76..216b1b9 100644
--- a/Core/Src/home_screen.c
+++ b/Core/Src/home_screen.c
@@ -9,6 +9,8 @@
 
 #include "lvgl.h"
 
+#define PSE_UNITS_NUM 4 // number of units (4 in our case, X, Y, Z and extr)
+
 static void run_handler(lv_event_t * e){
 	lv_event_code_t code = lv_event_get_code(e);
 
@@ -25,13 +27,51 @@ static void run_handler(lv_event_t * e){
   }
 }
 
+static lv_coord_t units_col_dsc[] = {LV_GRID_FR(1), LV_GRID_FR(1), LV_GRID_FR(1), LV_GRID_FR(1), LV_GRID_TEMPLATE_LAST};
+static lv_coord_t units_row_dsc[] = {LV_GRID_FR(1), LV_GRID_TEMPLATE_LAST};
+
+static lv_obj_t* PSE_unit_widget(lv_obj_t* parent){
+	// The main container
+	lv_obj_t* cont = lv_obj_create(parent);
+	lv_obj_set_size(cont, lv_pct(24), lv_pct(100));
+	lv_obj_set_flex_flow(cont, LV_FLEX_FLOW_COLUMN);
+
+	// flow setting
+	lv_obj_t* flow = lv_label_create(cont);
+	lv_obj_set_width(flow, lv_pct(100));
+	lv_obj_set_flex_grow(flow, 1);
+	lv_label_set_text(flow, "-----.--\nuL/mn");
+
+	// volume delivered readout
+	lv_obj_t* vol = lv_label_create(cont);
+	lv_obj_set_width(vol, lv_pct(100));
+	lv_obj_set_flex_grow(vol, 1);
+	lv_label_set_text(vol, "-----.--\nmL");
+
+	// home button
+	lv_obj_t* home = lv_btn_create(cont);
+	lv_obj_t* home_label = lv_label_create(home);
+	lv_obj_set_flex_grow(home, 1);
+	lv_obj_center(home_label);
+	lv_label_set_text(home_label, LV_SYMBOL_HOME);
+
+	// enabled button
+	lv_obj_t* enabled = lv_btn_create(cont);
+	lv_obj_t* enabled_label = lv_label_create(enabled);
+  lv_obj_add_flag(enabled, LV_OBJ_FLAG_CHECKABLE);
+	lv_obj_set_flex_grow(enabled, 1);
+	lv_obj_center(enabled_label);
+	lv_label_set_text(enabled_label, LV_SYMBOL_OK);
+	return cont;
+}
+
 void Home_Screen_Gen(void){
 	// Create a new screen
 	lv_obj_t* scr = lv_obj_create(NULL);
 
 	// create the top menu on the top 20%
 	lv_obj_t* top_menu = lv_obj_create(scr);
-	lv_obj_set_align(top_menu, LV_ALIGN_OUT_TOP_LEFT);
+	lv_obj_set_align(top_menu, LV_ALIGN_TOP_LEFT);
 	lv_obj_set_size(top_menu, lv_pct(100), lv_pct(20));
 	lv_obj_set_style_pad_all(top_menu, 5, 0);
 
@@ -47,6 +87,20 @@ void Home_Screen_Gen(void){
 	lv_label_set_text(run_label, LV_SYMBOL_PLAY);
 	lv_obj_center(run_label);
 
+	// grid layout for the 4 differents units
+	lv_obj_t* units_grid = lv_obj_create(scr);
+	lv_obj_align_to(units_grid, top_menu, LV_ALIGN_OUT_BOTTOM_LEFT, 0, 0);
+	lv_obj_set_size(units_grid, lv_pct(100), lv_pct(80));
+	lv_obj_set_style_pad_all(units_grid, 5, 0);
+	lv_obj_set_layout(units_grid, LV_LAYOUT_GRID);
+
+	lv_obj_set_grid_dsc_array(units_grid, units_col_dsc, units_row_dsc);
+
+	for(int i = 0; i < PSE_UNITS_NUM; i++){
+		lv_obj_t* obj = PSE_unit_widget(units_grid);
+		lv_obj_set_grid_cell(obj, LV_GRID_ALIGN_CENTER, i, 1, LV_GRID_ALIGN_CENTER, 0, 1);
+	}
+	
 	// fade in the new screen
 	lv_scr_load_anim(scr, LV_SCR_LOAD_ANIM_FADE_ON, 100, 100, false);
 }