Migrating repo.

firmware/v01/Makefile

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+# Arduino Make file. Refer to https://github.com/sudar/Arduino-Makefile
+
+BOARD_TAG	= pro
+BOARD_SUB	= 8MHzatmega328
+USER_LIB_PATH += /home/ricardo/Arduino/libraries
+ARDUINO_LIBS += LiquidCrystal
+ARDUINO_DIR  = /home/ricardo/arduino-1.8.5
+MONITOR_PORT = /dev/ttyUSB0
+include /usr/share/arduino/Arduino.mk
+

firmware/v01/v01.ino

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+// include the library code:
+#include <LiquidCrystal.h>
+#define delay_1 800
+
+
+#define b_nav 16
+#define b_ok 18
+#define b_back 19
+#define l_charge 17
+#define a_charge A6
+#define a_batt A7
+
+// initialize the library with the numbers of the interface pins
+LiquidCrystal lcd(7, 6, 2, 3, 4, 5);
+
+
+//Analog volt read pin
+//const int voltPin = A7;
+
+// Variables for voltage divider
+float denominator;
+int resistor1 = 22000; // Values measured in circuit
+int resistor2 = 2200;  // for better accuracy
+// ----------------------------------------------------
+
+
+// Function declarations -----------------------------------------------------------------
+void volt_batt (void);           // Read and display voltage
+//-----------------------------------------------------------------------------------------
+
+
+
+void setup() {
+
+	pinMode(b_nav, INPUT);
+	pinMode(b_ok, INPUT);
+	pinMode(b_back, INPUT);
+	pinMode(l_charge, OUTPUT);
+	lcd.begin(16, 2);
+	// Print a message to the LCD.
+	lcd.print("PowerTester v01");
+	//Convert resistor values to division value
+	//  Equation is previously mentions voltage divider equation
+	//  R2 / (R1 + R2)
+	//  In this case returns 0.20 or 1/5
+	denominator = (float)resistor2 / (resistor1 + resistor2);
+
+	digitalWrite(l_charge, LOW);
+
+} // Void Setup Close
+
+void loop() {
+
+//	lcd.setCursor(0, 1); // bottom left
+//	lcd.print("");
+
+	if (!digitalRead(b_nav)) {
+		volt_batt();
+	}
+
+	else if (!digitalRead(b_ok)) {
+		digitalWrite(l_charge, !digitalRead(l_charge));
+		lcd.setCursor(0, 1); // bottom left
+		lcd.print("Charge is toggled");
+		delay(500);
+	}
+
+	else if (!digitalRead(b_back)) {
+		float voltage_c;
+		float cur_c;
+		//Obtain RAW voltage data
+		voltage_c = analogRead(a_charge);
+
+		//Convert to actual voltage (Calibrated by hand)
+		voltage_c = (voltage_c / 1024) * 3.3;
+
+		cur_c = voltage_c / 0.5;
+
+		//Output to LCD
+		lcd.setCursor(0, 1); // bottom left
+		lcd.print("cur C =   ");
+		lcd.setCursor(11,1);
+		lcd.print(cur_c);
+
+		//Delay to make LCD readable
+		delay(500);
+	}
+
+	else {
+		volt_batt();
+	}
+
+
+} // void loop close
+
+
+void volt_batt(void) {
+
+	float voltage;
+	//Obtain RAW voltage data
+	voltage = analogRead(a_batt);
+
+	//Convert to actual voltage (Calibrated by hand)
+	voltage = (voltage / 1024) * 3.3;
+
+	//Convert to voltage before divider
+	//  Divide by divider = multiply
+	//  Divide by 1/5 = multiply by 5
+	voltage = voltage / denominator;
+
+	//Output to LCD
+	lcd.setCursor(0, 1); // bottom left
+	lcd.print("Batt V =  ");
+	lcd.setCursor(10,1);
+	lcd.print(voltage);
+
+	//Delay to make LCD readable
+	delay(500);
+}