now you set battery alert levels in volt per cell and set number of cells. less annoying battery alert beeps. small cleanup.

Inc/config.h

@@ -12,9 +12,10 @@
 #define BAT_CALIB_REAL_VOLTAGE        42.0       // input voltage measured by multimeter  
 #define BAT_CALIB_ADC                 1667       // adc-value measured by mainboard (value nr 4 on UART debug output)
 
-#define BAT_LOW_LVL1     36.0       // gently beeps at this voltage level. ~3.6V/cell
+#define BAT_NUMBER_OF_CELLS     12        // normal Hoverboard battery: 10s
-#define BAT_LOW_LVL2     33.0       // your battery is almost empty. Charge now! ~3.3V/cell
+#define BAT_LOW_LVL1            3.6       // gently beeps at this voltage level. [V/cell]
-#define BAT_LOW_DEAD     31.0       // undervoltage lockout. ~3.1V/cell
+#define BAT_LOW_LVL2            3.5       // your battery is almost empty. Charge now!  [V/cell]
+#define BAT_LOW_DEAD            3.37      // undervoltage lockout.  [V/cell]
 
 // ################################################################################
 

Src/main.c

@@ -221,11 +221,14 @@ int main(void) {
     setScopeChannel(5, (int)(batteryVoltage * 100.0f));  // for verifying battery voltage calibration
     // setScopeChannel(6, (int));
     // setScopeChannel(7, (int));
+    consoleScope();
+
 
     #ifdef ADDITIONAL_CODE
       ADDITIONAL_CODE;
     #endif
 
+
     // ####### SET OUTPUTS #######
     if ((speedL < lastSpeedL + 50 && speedL > lastSpeedL - 50) && (speedR < lastSpeedR + 50 && speedR > lastSpeedR - 50) && timeout < TIMEOUT) {
     #ifdef INVERT_R_DIRECTION
@@ -243,9 +246,8 @@ int main(void) {
     lastSpeedL = speedL;
     lastSpeedR = speedR;
 
-    // ####### LOG TO CONSOLE #######
-    consoleScope();
 
+    // ####### POWEROFF BY POWER-BUTTON #######
     if (HAL_GPIO_ReadPin(BUTTON_PORT, BUTTON_PIN)) {
       enable = 0;
       while (HAL_GPIO_ReadPin(BUTTON_PORT, BUTTON_PIN)) {}
@@ -259,13 +261,15 @@ int main(void) {
       while(1) {}
     }
 
-    if (batteryVoltage < BAT_LOW_LVL1 && batteryVoltage > BAT_LOW_LVL2) {
+
+    // ####### BATTERY VOLTAGE #######
+    if (batteryVoltage < ((float)BAT_LOW_LVL1 * (float)BAT_NUMBER_OF_CELLS) && batteryVoltage > ((float)BAT_LOW_LVL2 * (float)BAT_NUMBER_OF_CELLS)) {
       buzzerFreq = 5;
-      buzzerPattern = 8;
+      buzzerPattern = 42;
-    } else if  (batteryVoltage < BAT_LOW_LVL2 && batteryVoltage > BAT_LOW_DEAD) {
+    } else if (batteryVoltage < ((float)BAT_LOW_LVL2 * (float)BAT_NUMBER_OF_CELLS) && batteryVoltage > ((float)BAT_LOW_DEAD * (float)BAT_NUMBER_OF_CELLS)) {
       buzzerFreq = 5;
-      buzzerPattern = 1;
+      buzzerPattern = 6;
-    } else if  (batteryVoltage < BAT_LOW_DEAD) {
+    } else if (batteryVoltage < ((float)BAT_LOW_DEAD * (float)BAT_NUMBER_OF_CELLS)) {
       buzzerPattern = 0;
       enable = 0;
       for (int i = 0; i < 8; i++) {