Richard Cullen / Mbed 2 deprecated Hybrid_Supercapacitor_Car_Battery_Monitoring

This is the code used on my video series "Hybrid Supercapacitor Car Battery" for my own hardware monitoring system. THe videos can be found on madelectronengineering.com

Dependencies:   BurstSPI Fonts INA219 mbed LPC1114_WakeInterruptIn

Fork of SharpMemoryLCD by Paul Staron

main.cpp@2:0c49a8f32f6e, 2017-12-26 (annotated)

Committer:
madelectroneng
Date:
Tue Dec 26 21:30:09 2017 +0000
Revision:
2:0c49a8f32f6e
Inital setup

Who changed what in which revision?

UserRevisionLine numberNew contents of line
madelectroneng 2:0c49a8f32f6e 1 /* This is a project for madelectronengineering.com
madelectroneng 2:0c49a8f32f6e 2 This code is used for a hardware monitoring system for the Hybrid Supercapacitor Car Battery to monitor the supercap voltage, the LiFeP04 voltage,
madelectroneng 2:0c49a8f32f6e 3 current, and wattage, plus also monitor 3 seperate temperature points.
madelectroneng 2:0c49a8f32f6e 4
madelectroneng 2:0c49a8f32f6e 5 Required hardware:
madelectroneng 2:0c49a8f32f6e 6 STM32 NUCLEO-L073RZ
madelectroneng 2:0c49a8f32f6e 7 TMP36 Temperature Sensors (x3)
madelectroneng 2:0c49a8f32f6e 8 INA219 Current & Voltage Breakout (modify by removing 0.1Ohm resistor and replacing with 0.01Ohm Resistor to measure up to 32Amps
madelectroneng 2:0c49a8f32f6e 9 ST NUCLEO Protoboard
madelectroneng 2:0c49a8f32f6e 10 30k & 7.5k resistors for voltage divider to measure supercap voltage
madelectroneng 2:0c49a8f32f6e 11 0.1Ohm 25W current limiting power resistor in between supercap array and LiFeP04 battery
madelectroneng 2:0c49a8f32f6e 12 Sharp Memory LCD 400x240
madelectroneng 2:0c49a8f32f6e 13
madelectroneng 2:0c49a8f32f6e 14 The INA219 measures the current and amperage on the battery side of the current limiting resistor to keep an eye on the LiFeP04 battery.
madelectroneng 2:0c49a8f32f6e 15 voltage divider connects directly to + of supercap array
madelectroneng 2:0c49a8f32f6e 16
madelectroneng 2:0c49a8f32f6e 17 Arduino equivelant connections:
madelectroneng 2:0c49a8f32f6e 18 A0 - TMP36 #1
madelectroneng 2:0c49a8f32f6e 19 A1 - TMP36 #2
madelectroneng 2:0c49a8f32f6e 20 A2 - TMP36 #3
madelectroneng 2:0c49a8f32f6e 21 A3 - Voltage divider Input
madelectroneng 2:0c49a8f32f6e 22 A4&A5 - I2C for INA219
madelectroneng 2:0c49a8f32f6e 23
madelectroneng 2:0c49a8f32f6e 24 Arduino equivelant connections for LCD Screen:
madelectroneng 2:0c49a8f32f6e 25 D13 - SClk
madelectroneng 2:0c49a8f32f6e 26 D11 - MOSI
madelectroneng 2:0c49a8f32f6e 27 D10 - CD
madelectroneng 2:0c49a8f32f6e 28 D9 - Enable
madelectroneng 2:0c49a8f32f6e 29 D8 - Extcom
madelectroneng 2:0c49a8f32f6e 30
madelectroneng 2:0c49a8f32f6e 31 */
madelectroneng 2:0c49a8f32f6e 32 #include "mbed.h"
madelectroneng 2:0c49a8f32f6e 33 #include "SharpLCD.h"
madelectroneng 2:0c49a8f32f6e 34 #include "INA219.hpp"
madelectroneng 2:0c49a8f32f6e 35 #include "Neu44x36.h"
madelectroneng 2:0c49a8f32f6e 36 #include "Neu31x26.h"
madelectroneng 2:0c49a8f32f6e 37 #include "WakeUp.h"
madelectroneng 2:0c49a8f32f6e 38
madelectroneng 2:0c49a8f32f6e 39 SharpLCD display(PA_7, NC, PA_5, PB_6, PC_7, PA_9); //mosi, miso(not used), sck, cs, enable, extcom
madelectroneng 2:0c49a8f32f6e 40 INA219 ina219(PC_1, PC_0, 0x40, 400000, RES_12BITS);
madelectroneng 2:0c49a8f32f6e 41 AnalogIn ain1(PA_0); // connect A0 to Vout(Temp36)
madelectroneng 2:0c49a8f32f6e 42 AnalogIn ain2(PA_1); // connect A1 to Vout(Temp36)
madelectroneng 2:0c49a8f32f6e 43 AnalogIn ain3(PA_4); // connect A2 to Vout(Temp36)
madelectroneng 2:0c49a8f32f6e 44 AnalogIn ain4(PB_0); // Connect A3 to Voltage Divider
madelectroneng 2:0c49a8f32f6e 45
madelectroneng 2:0c49a8f32f6e 46 int main()
madelectroneng 2:0c49a8f32f6e 47 {
madelectroneng 2:0c49a8f32f6e 48 display.enableDisplay(); //enable sharp memory lcd
madelectroneng 2:0c49a8f32f6e 49 display.clearImmediate(); //clear the screen buffer and screen
madelectroneng 2:0c49a8f32f6e 50
madelectroneng 2:0c49a8f32f6e 51 display.set_font(Neu44x36);
madelectroneng 2:0c49a8f32f6e 52
madelectroneng 2:0c49a8f32f6e 53 //only send graphics and text once to the screen during bootup
madelectroneng 2:0c49a8f32f6e 54 display.locate(17,0);
madelectroneng 2:0c49a8f32f6e 55 display.printf("Hybrid Supercap");
madelectroneng 2:0c49a8f32f6e 56 display.locate(75,35);
madelectroneng 2:0c49a8f32f6e 57 display.printf("Car Battery");
madelectroneng 2:0c49a8f32f6e 58
madelectroneng 2:0c49a8f32f6e 59 display.rect(0,73,195,239, Black);
madelectroneng 2:0c49a8f32f6e 60 display.rect(205,73,399,239, Black);
madelectroneng 2:0c49a8f32f6e 61 display.fillrect(195,73,10,167, Black);
madelectroneng 2:0c49a8f32f6e 62 display.line(1,174,194,174, Black);
madelectroneng 2:0c49a8f32f6e 63 display.line(1,176,194,176, Black);
madelectroneng 2:0c49a8f32f6e 64 display.line(1,107,194,107, Black);
madelectroneng 2:0c49a8f32f6e 65 display.line(206,107,399,107, Black);
madelectroneng 2:0c49a8f32f6e 66 display.line(1,141,194,141, Black);
madelectroneng 2:0c49a8f32f6e 67 display.line(206,141,399,141, Black);
madelectroneng 2:0c49a8f32f6e 68 display.line(1,175,194,175, Black);
madelectroneng 2:0c49a8f32f6e 69 display.line(206,175,399,175, Black);
madelectroneng 2:0c49a8f32f6e 70 display.line(1,209,194,209, Black);
madelectroneng 2:0c49a8f32f6e 71 display.line(206,209,399,209, Black);
madelectroneng 2:0c49a8f32f6e 72
madelectroneng 2:0c49a8f32f6e 73 display.set_font(Neu31x26);
madelectroneng 2:0c49a8f32f6e 74 display.locate(15,76);
madelectroneng 2:0c49a8f32f6e 75 display.printf("Supercaps");
madelectroneng 2:0c49a8f32f6e 76 display.locate(240,76);
madelectroneng 2:0c49a8f32f6e 77 display.printf("LiFePo4");
madelectroneng 2:0c49a8f32f6e 78 display.locate(30,179);
madelectroneng 2:0c49a8f32f6e 79 display.printf("Resistor");
madelectroneng 2:0c49a8f32f6e 80
madelectroneng 2:0c49a8f32f6e 81 display.locate(360,110);
madelectroneng 2:0c49a8f32f6e 82 display.printf("V");
madelectroneng 2:0c49a8f32f6e 83 display.locate(360,143);
madelectroneng 2:0c49a8f32f6e 84 display.printf("A");
madelectroneng 2:0c49a8f32f6e 85 display.locate(360,177);
madelectroneng 2:0c49a8f32f6e 86 display.printf("W");
madelectroneng 2:0c49a8f32f6e 87 display.locate(155,212);
madelectroneng 2:0c49a8f32f6e 88 display.printf("'F");
madelectroneng 2:0c49a8f32f6e 89 display.locate(360,212);
madelectroneng 2:0c49a8f32f6e 90 display.printf("'F");
madelectroneng 2:0c49a8f32f6e 91 display.locate(155,143);
madelectroneng 2:0c49a8f32f6e 92 display.printf("'F");
madelectroneng 2:0c49a8f32f6e 93 display.locate(155,110);
madelectroneng 2:0c49a8f32f6e 94 display.printf("V");
madelectroneng 2:0c49a8f32f6e 95
madelectroneng 2:0c49a8f32f6e 96 while(1) {
madelectroneng 2:0c49a8f32f6e 97
madelectroneng 2:0c49a8f32f6e 98 float volt;
madelectroneng 2:0c49a8f32f6e 99 float current_ma;
madelectroneng 2:0c49a8f32f6e 100 float power;
madelectroneng 2:0c49a8f32f6e 101
madelectroneng 2:0c49a8f32f6e 102 volt = ina219.read_bus_voltage();
madelectroneng 2:0c49a8f32f6e 103 current_ma = ina219.read_current_mA() / 1000;
madelectroneng 2:0c49a8f32f6e 104 power = volt * current_ma;
madelectroneng 2:0c49a8f32f6e 105
madelectroneng 2:0c49a8f32f6e 106 float V1 = ain1.read() * 3.3; // connect Vs(Tmp36) to 3.3V
madelectroneng 2:0c49a8f32f6e 107 float tempC1 = (V1-0.5) * 100; // calculate temperature C
madelectroneng 2:0c49a8f32f6e 108 float tempF1 = (tempC1 * 9 / 5) + 32.0; // calculate temperature F
madelectroneng 2:0c49a8f32f6e 109
madelectroneng 2:0c49a8f32f6e 110 float V2 = ain2.read() * 3.3; // connect Vs(Tmp36) to 3.3V
madelectroneng 2:0c49a8f32f6e 111 float tempC2 = (V2-0.5) * 100; // calculate temperature C
madelectroneng 2:0c49a8f32f6e 112 float tempF2 = (tempC2 * 9 / 5) + 32.0; // calculate temperature F
madelectroneng 2:0c49a8f32f6e 113
madelectroneng 2:0c49a8f32f6e 114 float V3 = ain3.read() * 3.3; // connect Vs(Tmp36) to 3.3V
madelectroneng 2:0c49a8f32f6e 115 float tempC3 = (V3-0.5) * 100; // calculate temperature C
madelectroneng 2:0c49a8f32f6e 116 float tempF3 = (tempC3 * 9 / 5) + 32.0; // calculate temperature F
madelectroneng 2:0c49a8f32f6e 117
madelectroneng 2:0c49a8f32f6e 118 float V4 = (ain4.read()) * 3.3; // Voltage divider for supercap voltage
madelectroneng 2:0c49a8f32f6e 119 float voltage = (V4 * 5); // Voltage divider is 1 to 5 ratio
madelectroneng 2:0c49a8f32f6e 120
madelectroneng 2:0c49a8f32f6e 121 display.set_font(Neu31x26);
madelectroneng 2:0c49a8f32f6e 122 display.locate(210,110);
madelectroneng 2:0c49a8f32f6e 123 display.printf(" ");
madelectroneng 2:0c49a8f32f6e 124 display.locate(210,110);
madelectroneng 2:0c49a8f32f6e 125 display.printf("%+05.2f", volt);
madelectroneng 2:0c49a8f32f6e 126 display.locate(210,143);
madelectroneng 2:0c49a8f32f6e 127 display.printf(" ");
madelectroneng 2:0c49a8f32f6e 128 display.locate(210,143);
madelectroneng 2:0c49a8f32f6e 129 display.printf("%+04.1f", current_ma);
madelectroneng 2:0c49a8f32f6e 130 display.locate(210,177);
madelectroneng 2:0c49a8f32f6e 131 display.printf(" ");
madelectroneng 2:0c49a8f32f6e 132 display.locate(210,177);
madelectroneng 2:0c49a8f32f6e 133 display.printf("%+05.1f", power);
madelectroneng 2:0c49a8f32f6e 134 display.locate(20,212);
madelectroneng 2:0c49a8f32f6e 135 display.printf(" ");
madelectroneng 2:0c49a8f32f6e 136 display.locate(20,212);
madelectroneng 2:0c49a8f32f6e 137 display.printf("%+03.0f", tempF1);
madelectroneng 2:0c49a8f32f6e 138 display.locate(210,212);
madelectroneng 2:0c49a8f32f6e 139 display.printf(" ");
madelectroneng 2:0c49a8f32f6e 140 display.locate(210,212);
madelectroneng 2:0c49a8f32f6e 141 display.printf("%+03.0f", tempF2);
madelectroneng 2:0c49a8f32f6e 142 display.locate(20,143);
madelectroneng 2:0c49a8f32f6e 143 display.printf(" ");
madelectroneng 2:0c49a8f32f6e 144 display.locate(20,143);
madelectroneng 2:0c49a8f32f6e 145 display.printf("%+03.0f", tempF3);
madelectroneng 2:0c49a8f32f6e 146 display.locate(20,110);
madelectroneng 2:0c49a8f32f6e 147 display.printf(" ");
madelectroneng 2:0c49a8f32f6e 148 display.locate(20,110);
madelectroneng 2:0c49a8f32f6e 149 display.printf("%+05.2f", voltage);
madelectroneng 2:0c49a8f32f6e 150
madelectroneng 2:0c49a8f32f6e 151 display.update();
madelectroneng 2:0c49a8f32f6e 152
madelectroneng 2:0c49a8f32f6e 153 //Set wakeup time for 1 second
madelectroneng 2:0c49a8f32f6e 154 // WakeUp::set_ms(500);
madelectroneng 2:0c49a8f32f6e 155
madelectroneng 2:0c49a8f32f6e 156 //Enter deepsleep, the program won't go beyond this point until it is woken up
madelectroneng 2:0c49a8f32f6e 157 // deepsleep();
madelectroneng 2:0c49a8f32f6e 158 }
madelectroneng 2:0c49a8f32f6e 159 }