Updated current calculation formula

firmware/pd-psu_v2/pd-psu_v2.ino

@@ -53,7 +53,7 @@ void loop() {
 
   //Convert them to actual voltage / current value
   voltageReading = map(voltageReading, 0, 255, 0, 500) * 4;  //30k - 10k voltage divider
-  currentReading = map(currentReading, 0, 255, 0, 500);      //Max range 0 to 5A
+  currentReading = (2.5 - (currentReading * (5.0 / 255)) )/0.185;      //Max range 0 to 5A
 
   //Cap the range of digits to make sure it won't overflow
   voltageReading = min(voltageReading, 9999);
@@ -62,8 +62,7 @@ void loop() {
   //Print result on USB Serial
   USBSerial_print(((float)voltageReading/100));
   USBSerial_print(",");
-  USBSerial_print(((float)currentReading/100));
-  USBSerial_println("\n");
+  USBSerial_println(((float)currentReading/100));
   
   //Update OLED display
   PS_Screen(voltageReading, currentReading, isCCMode);