Добавил гашение незначащих нулей на мелких токах.

src/main.c

@@ -280,9 +280,17 @@ static void PrepareForLed(void) {
   } else {
     /* XXX mili Amper */
     LedPoint = 3;
-    LedDigits[0] = value / 100;
-    value = value % 100;
-    LedDigits[1] = value / 10;
+    if(value > 99){
+      LedDigits[0] = value / 100;
+      value = value % 100;
+    } else {
+      LedDigits[0] = 0xFF;
+    }
+    if(value > 9){
+      LedDigits[1] = value / 10;
+    } else if(LedDigits[0] == 0xFF){
+      LedDigits[1] = 0xFF;
+    }
     LedDigits[2] = value % 10;
   }
 }
@@ -295,11 +303,11 @@ static void OutputToLed(void) {
   GPIOD->ODR ^= GPIO_PIN_2;
 
   /* all off */
-  //LED_ANODE_OFF
+  // LED_ANODE_OFF
   LED_ANOD1_PORT->ODR &= ~LED_ANOD1_PIN;
   LED_ANOD2_PORT->ODR &= ~(LED_ANOD2_PIN | LED_ANOD3_PIN);
 
-  //LED_OUT_OFF
+  // LED_OUT_OFF
   LED_SEG1_PORT->ODR |= LED_SEG1_PINS;
   LED_SEG2_PORT->ODR |= LED_SEG2_PINS;
   LED_SEG3_PORT->ODR |= LED_SEG3_PINS;
@@ -336,6 +344,8 @@ static void OutputToLed(void) {
     case 9:
       LED_OUT_9
       break;
+    case 0xFF:
+      break;
     default:
       LED_OUT_MM
   }