rashmi v / Mbed 2 deprecated SS_SensePOC2P0_12Dec2017_USERPID

created separate function for hex to char

Dependencies:   SDFileSystem ds3231 eeprom_Nikita mbed testUniGraphic_150217

Fork of SS_SensePOC2P0_11Dec2017_USERPID by rashmi v

battery.cpp

Committer:
rashmivenkataramaiah
Date:
2017-12-12
Revision:
76:611154b3b597
Parent:
72:1f990fa8c516

File content as of revision 76:611154b3b597:

#include "mbed.h"
#include "battery.h"
//#include "display_modules.h"

#define BATTERY_PIN                                      PTB1                                                   // Battery Pin
#define BATTERY_MAX_OPERATING_VOLTAGE                   (float)3.3                                              // Battery Max Operating Voltage
#define BATTERY_INTERMEDIATE_HIGH_VOLTAGE               (float)3.64                                             // Battery Full Voltage
#define BATTERY_MEDIUM_VOLTAGE                          (float)3.57                                             // battery Medium Voltage
#define BATTERY_LOW_VOLTAGE                             (float)3.53                                             // Battery LOW Voltage 

/*
#define  BATTERY_SCREEN_CHARGE_CONDITION                                            0
#define  BATTERY_LOW_CHARGE_CONDITION                                               1
#define  BATTERY_CRITICALLY_LOW_CHARGE_CONDITION                                    2
#define  BATTERY_SCREEN_NO_CHARGE_CONDITION                                         3
*/

static uint8_t battery_voltage_condition = BATTERY_SCREEN_CHARGE_CONDITION;


AnalogIn A(BATTERY_PIN);
Serial battery(USBTX, USBRX);

/*  Function    : To Monitor Battery Voltage
    returns     : void

*/
 
 //uint8_t battery_condition=0;
void battery_monitor() 
{
    
    float b_voltage;
    b_voltage = A.read_u16()*(BATTERY_MAX_OPERATING_VOLTAGE/65535)*2;
    wait(0.001f);   
    battery.printf("voltage=%f",b_voltage);
    
    if (b_voltage >= BATTERY_INTERMEDIATE_HIGH_VOLTAGE )
         battery_voltage_condition = BATTERY_SCREEN_CHARGE_CONDITION;
    
    else if ((b_voltage <  BATTERY_INTERMEDIATE_HIGH_VOLTAGE ) && (b_voltage > BATTERY_MEDIUM_VOLTAGE))             // 15% to 10% Battery voltage
         battery_voltage_condition =  BATTERY_LOW_CHARGE_CONDITION ;
              
    else if ((b_voltage < BATTERY_MEDIUM_VOLTAGE) && (b_voltage > BATTERY_LOW_VOLTAGE))                             // 10% to 5% battery volage
        battery_voltage_condition =  BATTERY_CRITICALLY_LOW_CHARGE_CONDITION;
            
    else if (b_voltage < BATTERY_LOW_VOLTAGE)
         battery_voltage_condition = BATTERY_SCREEN_NO_CHARGE_CONDITION ;
                
}

/*  Function    : To get battery status depending battery voltage 
    returns     : battery_voltage_condition

*/

uint8_t get_battery_status()
{
    
    return battery_voltage_condition;    
}