Jurica Resetar / Mbed OS acd52832_Car_battery_ch

A simple example for analog input and EPD usage.

Dependencies:   GDEP015OC1 acn_nrf52_saadc aconno_bsp

Fork of acd52832_3_Analog_In by aconno dev team

main.cpp@5:6566725c8835, 2017-06-30 (annotated)

Committer:
jurica238814
Date:
Fri Jun 30 11:45:56 2017 +0000
Revision:
5:6566725c8835
Parent:
4:f6f94ef38e6a
Child:
6:e848c82b5248
Images added.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jurica238814 0:dc96b5c8e3f6 1 /* Copyright (c) 2017 Aconno. All Rights Reserved.
jurica238814 0:dc96b5c8e3f6 2 *
jurica238814 0:dc96b5c8e3f6 3 * Licensees are granted free, non-transferable use of the information. NO
jurica238814 0:dc96b5c8e3f6 4 * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
jurica238814 0:dc96b5c8e3f6 5 * the file.
jurica238814 0:dc96b5c8e3f6 6 */
jurica238814 0:dc96b5c8e3f6 7
jurica238814 0:dc96b5c8e3f6 8 #include "mbed.h"
jurica238814 0:dc96b5c8e3f6 9 #include "acd52832_bsp.h"
jurica238814 0:dc96b5c8e3f6 10 #include "GDEP015OC1.h"
jurica238814 5:6566725c8835 11 #include "pictures.h"
jurica238814 0:dc96b5c8e3f6 12
jurica238814 5:6566725c8835 13 #define DEBUG (1)
jurica238814 5:6566725c8835 14 #define ADC_MAX_VALUE (4092)
jurica238814 5:6566725c8835 15 #define ADC_REF_VOLTAGE (3.6)
jurica238814 5:6566725c8835 16 #define VOLTAGE_DIVIDER_RATION (130.0/30)
jurica238814 5:6566725c8835 17 #define CURRENT_FACTOR (36.0)
jurica238814 5:6566725c8835 18 #define BATTERY_MAX_V (14.0)
jurica238814 5:6566725c8835 19 #define BATTERY_MIN_V (12.0)
jurica238814 5:6566725c8835 20 #define BATTERY_STEP (0.4)
jurica238814 5:6566725c8835 21 #define LOW_QUICK_CURRENT (0.5)
jurica238814 5:6566725c8835 22
jurica238814 5:6566725c8835 23
jurica238814 0:dc96b5c8e3f6 24
jurica238814 0:dc96b5c8e3f6 25 SPI spi(PIN_EPD_MOSI, NC, PIN_EPD_SCK, NC);
jurica238814 0:dc96b5c8e3f6 26 GDEP015OC1 epd = GDEP015OC1(spi, PIN_EPD_CS, PIN_EPD_DC, PIN_EPD_RST, PIN_EPD_BUSY);
jurica238814 0:dc96b5c8e3f6 27
jurica238814 0:dc96b5c8e3f6 28 AnalogIn battery (p28);
jurica238814 0:dc96b5c8e3f6 29 AnalogIn usb1 (p29);
jurica238814 0:dc96b5c8e3f6 30 AnalogIn usb2 (p30);
jurica238814 0:dc96b5c8e3f6 31
jurica238814 0:dc96b5c8e3f6 32 int main(){
jurica238814 0:dc96b5c8e3f6 33 char buffer[25] = {0};
jurica238814 5:6566725c8835 34 char low_string[25] = "LOW";
jurica238814 5:6566725c8835 35 char quick_string[25] = "QUICK";
jurica238814 4:f6f94ef38e6a 36 float adc1_mean=0, adc2_mean=0, adc3_mean=0;
jurica238814 5:6566725c8835 37 float battery_voltage = 0;
jurica238814 5:6566725c8835 38 float usb1_current = 0, usb2_current = 0;
jurica238814 4:f6f94ef38e6a 39 int count = 0;
jurica238814 4:f6f94ef38e6a 40
jurica238814 4:f6f94ef38e6a 41 NRF_SAADC->RESOLUTION = 0x00000002; // Set 12b resolution
jurica238814 5:6566725c8835 42
jurica238814 5:6566725c8835 43 epd.empty();
jurica238814 5:6566725c8835 44 epd.writeFull();
jurica238814 5:6566725c8835 45
jurica238814 0:dc96b5c8e3f6 46 while(true){
jurica238814 0:dc96b5c8e3f6 47
jurica238814 4:f6f94ef38e6a 48 adc1_mean += battery.read_u16();
jurica238814 4:f6f94ef38e6a 49 adc2_mean += usb1.read_u16();
jurica238814 4:f6f94ef38e6a 50 adc3_mean += usb2.read_u16();
jurica238814 4:f6f94ef38e6a 51 count ++;
jurica238814 0:dc96b5c8e3f6 52
jurica238814 4:f6f94ef38e6a 53 if (count == 10){
jurica238814 4:f6f94ef38e6a 54
jurica238814 4:f6f94ef38e6a 55 adc1_mean /= 10;
jurica238814 4:f6f94ef38e6a 56 adc2_mean /= 10;
jurica238814 4:f6f94ef38e6a 57 adc3_mean /= 10;
jurica238814 5:6566725c8835 58 count = 0;
jurica238814 4:f6f94ef38e6a 59
jurica238814 5:6566725c8835 60 battery_voltage = adc1_mean*(ADC_REF_VOLTAGE/ADC_MAX_VALUE)*VOLTAGE_DIVIDER_RATION;
jurica238814 5:6566725c8835 61 usb1_current = (CURRENT_FACTOR/ADC_MAX_VALUE)*adc2_mean;
jurica238814 5:6566725c8835 62 usb2_current = (CURRENT_FACTOR/ADC_MAX_VALUE)*adc3_mean;
jurica238814 4:f6f94ef38e6a 63
jurica238814 5:6566725c8835 64 if(battery_voltage > BATTERY_MAX_V - BATTERY_STEP){
jurica238814 5:6566725c8835 65 //Load image
jurica238814 5:6566725c8835 66 for(uint16_t x=0;x<5000;x++)
jurica238814 5:6566725c8835 67 epd.fill(BS_5[x], x);
jurica238814 5:6566725c8835 68 epd.write();
jurica238814 5:6566725c8835 69 }
jurica238814 5:6566725c8835 70 else if((battery_voltage > BATTERY_MAX_V - BATTERY_STEP * 2) && (battery_voltage < BATTERY_MAX_V - BATTERY_STEP * 1)){
jurica238814 5:6566725c8835 71 //Load image
jurica238814 5:6566725c8835 72 for(uint16_t x=0;x<5000;x++)
jurica238814 5:6566725c8835 73 epd.fill(BS_4[x], x);
jurica238814 5:6566725c8835 74 epd.write();
jurica238814 5:6566725c8835 75 }
jurica238814 5:6566725c8835 76 else if((battery_voltage > BATTERY_MAX_V - BATTERY_STEP * 3) && (battery_voltage < BATTERY_MAX_V - BATTERY_STEP * 2)){
jurica238814 5:6566725c8835 77 //Load image
jurica238814 5:6566725c8835 78 for(uint16_t x=0;x<5000;x++)
jurica238814 5:6566725c8835 79 epd.fill(BS_3[x], x);
jurica238814 5:6566725c8835 80 epd.write();
jurica238814 5:6566725c8835 81 }
jurica238814 5:6566725c8835 82 else if((battery_voltage > BATTERY_MAX_V - BATTERY_STEP * 4) && (battery_voltage < BATTERY_MAX_V - BATTERY_STEP * 3)){
jurica238814 5:6566725c8835 83 //Load image
jurica238814 5:6566725c8835 84 for(uint16_t x=0;x<5000;x++)
jurica238814 5:6566725c8835 85 epd.fill(BS_2[x], x);
jurica238814 5:6566725c8835 86 epd.write();
jurica238814 5:6566725c8835 87 }
jurica238814 5:6566725c8835 88 else if((battery_voltage > BATTERY_MAX_V - BATTERY_STEP * 5) && (battery_voltage < BATTERY_MAX_V - BATTERY_STEP * 4)){
jurica238814 5:6566725c8835 89 //Load image
jurica238814 5:6566725c8835 90 for(uint16_t x=0;x<5000;x++)
jurica238814 5:6566725c8835 91 epd.fill(BS_1[x], x);
jurica238814 5:6566725c8835 92 epd.write();
jurica238814 5:6566725c8835 93 }
jurica238814 5:6566725c8835 94 else if(battery_voltage < BATTERY_MAX_V - BATTERY_STEP * 5){
jurica238814 5:6566725c8835 95 //Load image
jurica238814 5:6566725c8835 96 for(uint16_t x=0;x<5000;x++)
jurica238814 5:6566725c8835 97 epd.fill(BS_E[x], x);
jurica238814 5:6566725c8835 98 epd.write();
jurica238814 5:6566725c8835 99 }
jurica238814 5:6566725c8835 100
jurica238814 5:6566725c8835 101 if(usb1_current < (float)LOW_QUICK_CURRENT){
jurica238814 5:6566725c8835 102 epd.writeString(low_string, 25, 180, 0);
jurica238814 5:6566725c8835 103 epd.write();
jurica238814 5:6566725c8835 104 }
jurica238814 5:6566725c8835 105 else{
jurica238814 5:6566725c8835 106 epd.writeString(quick_string, 25, 180, 0);
jurica238814 5:6566725c8835 107 epd.write();
jurica238814 5:6566725c8835 108 }
jurica238814 5:6566725c8835 109
jurica238814 5:6566725c8835 110 if(usb2_current < (float)LOW_QUICK_CURRENT){
jurica238814 5:6566725c8835 111 epd.writeString(low_string, 135, 180, 0);
jurica238814 5:6566725c8835 112 epd.write();
jurica238814 5:6566725c8835 113 }
jurica238814 5:6566725c8835 114 else{
jurica238814 5:6566725c8835 115 epd.writeString(quick_string, 135, 180, 0);
jurica238814 5:6566725c8835 116 epd.write();
jurica238814 5:6566725c8835 117 }
jurica238814 4:f6f94ef38e6a 118
jurica238814 4:f6f94ef38e6a 119
jurica238814 4:f6f94ef38e6a 120
jurica238814 5:6566725c8835 121 #if DEBUG
jurica238814 5:6566725c8835 122 /*
jurica238814 5:6566725c8835 123 // Print voltage and current values in debug mode
jurica238814 5:6566725c8835 124 sprintf(buffer, "Battery: %5.5fV", adc1_mean*(ADC_REF_VOLTAGE/ADC_MAX_VALUE)*VOLTAGE_DIVIDER_RATION); // Create a string
jurica238814 5:6566725c8835 125 epd.writeString(buffer,25,95,0); // Write new data to the buffer
jurica238814 5:6566725c8835 126 epd.write(); // Write string to the EPD
jurica238814 5:6566725c8835 127 */
jurica238814 5:6566725c8835 128 sprintf(buffer, "USB1: %5.5fA", (CURRENT_FACTOR/ADC_MAX_VALUE)*adc2_mean); // Create a string
jurica238814 5:6566725c8835 129 epd.writeString(buffer,5,190,0); // Write new data to the buffer
jurica238814 5:6566725c8835 130 epd.write(); // Write string to the EPD
jurica238814 5:6566725c8835 131
jurica238814 5:6566725c8835 132 sprintf(buffer, "USB1: %5.5fA", (CURRENT_FACTOR/ADC_MAX_VALUE)*adc3_mean); // Create a string
jurica238814 5:6566725c8835 133 epd.writeString(buffer,105,190,0); // Write new data to the buffer
jurica238814 5:6566725c8835 134 epd.write(); // Write string to the EPD
jurica238814 5:6566725c8835 135 #endif
jurica238814 4:f6f94ef38e6a 136
jurica238814 4:f6f94ef38e6a 137 adc1_mean = 0;
jurica238814 4:f6f94ef38e6a 138 adc2_mean = 0;
jurica238814 4:f6f94ef38e6a 139 adc3_mean = 0;
jurica238814 4:f6f94ef38e6a 140 }
jurica238814 0:dc96b5c8e3f6 141 }
jurica238814 0:dc96b5c8e3f6 142 }