Taylor Nichols / Mbed 2 deprecated kegmo

Keg sharing system

Dependencies:   4DGL-uLCD-SE TextLCD mbed

main.cpp@5:571cd0eea9be, 2016-12-09 (annotated)

Committer:
taylornichols
Date:
Fri Dec 09 03:18:03 2016 +0000
Revision:
5:571cd0eea9be
Parent:
4:bcb5be37a0e1 
#if LCD_ON

Who changed what in which revision?

UserRevisionLine numberNew contents of line
taylornichols 0:dd375f44efef 1 #include "mbed.h"
taylornichols 1:f531f70a27c3 2 #include "uLCD_4DGL.h"
taylornichols 1:f531f70a27c3 3 #include "TextLCD.h"
taylornichols 0:dd375f44efef 4 #include <mpr121.h>
taylornichols 0:dd375f44efef 5
taylornichols 0:dd375f44efef 6 // on-board LEDs
taylornichols 0:dd375f44efef 7 DigitalOut led1 ( LED1 ) ;
taylornichols 0:dd375f44efef 8 DigitalOut led2 ( LED2 ) ;
taylornichols 0:dd375f44efef 9 DigitalOut led3 ( LED3 ) ;
taylornichols 0:dd375f44efef 10 DigitalOut led4 ( LED4 ) ;
taylornichols 0:dd375f44efef 11
taylornichols 3:861e3433e5e1 12 // COM port
taylornichols 1:f531f70a27c3 13 Serial com ( USBTX , USBRX , 9600 );
taylornichols 0:dd375f44efef 14
taylornichols 3:861e3433e5e1 15 // keypad
taylornichols 0:dd375f44efef 16 InterruptIn interrupt ( p26 ) ;
taylornichols 0:dd375f44efef 17 I2C i2c ( p9 , p10 ) ;
taylornichols 0:dd375f44efef 18 Mpr121 keypad ( & i2c , Mpr121::ADD_VSS ) ;
taylornichols 0:dd375f44efef 19
taylornichols 5:571cd0eea9be 20 #define LCD_ON 1
taylornichols 5:571cd0eea9be 21
taylornichols 1:f531f70a27c3 22 // LCD ( tx , rx , reset )
taylornichols 5:571cd0eea9be 23 #if LCD_ON
taylornichols 5:571cd0eea9be 24 uLCD_4DGL lcd ( p28 , p27 , p5 ) ;
taylornichols 5:571cd0eea9be 25 #endif
taylornichols 1:f531f70a27c3 26
taylornichols 1:f531f70a27c3 27 // flow meter
taylornichols 3:861e3433e5e1 28 InterruptIn pulse_interrupt ( p11 ) ;
taylornichols 1:f531f70a27c3 29 int unsigned pulse_count ( 0 ) ;
taylornichols 3:861e3433e5e1 30 float pulse_milliLiters ( )
taylornichols 3:861e3433e5e1 31 {
taylornichols 5:571cd0eea9be 32 float const factor ( 300.0f / 206.0f ) ;
taylornichols 5:571cd0eea9be 33 return ( ( float ) pulse_count * factor ) / 0.450f ;
taylornichols 3:861e3433e5e1 34 }
taylornichols 1:f531f70a27c3 35 void pulse ( )
taylornichols 1:f531f70a27c3 36 {
taylornichols 1:f531f70a27c3 37 ++ pulse_count ;
taylornichols 5:571cd0eea9be 38 led4 = ! led4 ;
taylornichols 5:571cd0eea9be 39 #if LCD_ON
taylornichols 5:571cd0eea9be 40 lcd.locate ( 4 , 8 ) ;
taylornichols 5:571cd0eea9be 41 lcd.printf ( "%f mL" , pulse_milliLiters ( ) ) ;
taylornichols 5:571cd0eea9be 42 #endif
taylornichols 2:7d499335dda5 43 }
taylornichols 2:7d499335dda5 44
taylornichols 3:861e3433e5e1 45 void read_pin ( )
taylornichols 3:861e3433e5e1 46 {
taylornichols 5:571cd0eea9be 47 #if LCD_ON
taylornichols 5:571cd0eea9be 48 lcd.filled_rectangle ( 0 , 0 , 128 , 128 , BLACK ) ;
taylornichols 5:571cd0eea9be 49 lcd.locate ( 4 , 6 ) ;
taylornichols 5:571cd0eea9be 50 lcd.printf ( "Enter PIN" ) ;
taylornichols 5:571cd0eea9be 51 lcd.locate ( 4 , 7 ) ;
taylornichols 5:571cd0eea9be 52 lcd.printf ( "on keypad" ) ;
taylornichols 5:571cd0eea9be 53 #endif
taylornichols 3:861e3433e5e1 54 }
taylornichols 3:861e3433e5e1 55
taylornichols 3:861e3433e5e1 56 enum
taylornichols 3:861e3433e5e1 57 {
taylornichols 3:861e3433e5e1 58 pin_row = 8 , pin_col = 6
taylornichols 3:861e3433e5e1 59 } ;
taylornichols 1:f531f70a27c3 60
taylornichols 0:dd375f44efef 61 int unsigned pin_count ( 0 ) ;
taylornichols 0:dd375f44efef 62 int unsigned pin_value ( 0 ) ;
taylornichols 3:861e3433e5e1 63
taylornichols 0:dd375f44efef 64 void keypad_callback ( )
taylornichols 0:dd375f44efef 65 {
taylornichols 0:dd375f44efef 66 led2 = ! led2 ;
taylornichols 1:f531f70a27c3 67
taylornichols 1:f531f70a27c3 68 int value ( keypad.read(0x00) ) ; value += keypad.read(0x01) << 8 ;
taylornichols 1:f531f70a27c3 69
taylornichols 1:f531f70a27c3 70 switch ( value ) // map keys to keypad values
taylornichols 0:dd375f44efef 71 {
taylornichols 1:f531f70a27c3 72 case 0 : return ; // key release
taylornichols 3:861e3433e5e1 73
taylornichols 3:861e3433e5e1 74 case 0x1 :
taylornichols 3:861e3433e5e1 75 // DELETE
taylornichols 4:bcb5be37a0e1 76 // lcd.locate ( pin_col + pin_count , pin_row ) ;
taylornichols 4:bcb5be37a0e1 77 // lcd.printf ( " " ) ;
taylornichols 3:861e3433e5e1 78 if ( pin_count != 0 )
taylornichols 3:861e3433e5e1 79 {
taylornichols 3:861e3433e5e1 80 -- pin_count ;
taylornichols 3:861e3433e5e1 81 }
taylornichols 3:861e3433e5e1 82 pin_value /= 10 ;
taylornichols 3:861e3433e5e1 83 return ;
taylornichols 3:861e3433e5e1 84
taylornichols 3:861e3433e5e1 85 case 0x100 :
taylornichols 3:861e3433e5e1 86 // DONE
taylornichols 3:861e3433e5e1 87 com.printf ( "a%020f\n" , pulse_milliLiters ( ) ) ;
taylornichols 5:571cd0eea9be 88 #if LCD_ON
taylornichols 5:571cd0eea9be 89 lcd.locate ( 0 , 10 ) ;
taylornichols 5:571cd0eea9be 90 lcd.printf ( "Done pouring." ) ;
taylornichols 5:571cd0eea9be 91 #endif
taylornichols 3:861e3433e5e1 92 pulse_count = 0 ;
taylornichols 3:861e3433e5e1 93 read_pin ( ) ;
taylornichols 3:861e3433e5e1 94 return ;
taylornichols 3:861e3433e5e1 95
taylornichols 0:dd375f44efef 96 case 0x10 : pin_value = pin_value * 10 ; break ; // 0
taylornichols 1:f531f70a27c3 97 case 0x2 : pin_value = pin_value * 10 + 1 ; break ; // 1
taylornichols 1:f531f70a27c3 98 case 0x20 : pin_value = pin_value * 10 + 2 ; break ; // 2
taylornichols 1:f531f70a27c3 99 case 0x200 : pin_value = pin_value * 10 + 3 ; break ; // 3
taylornichols 1:f531f70a27c3 100 case 0x4 : pin_value = pin_value * 10 + 4 ; break ; // 4
taylornichols 1:f531f70a27c3 101 case 0x40 : pin_value = pin_value * 10 + 5 ; break ; // 5
taylornichols 1:f531f70a27c3 102 case 0x400 : pin_value = pin_value * 10 + 6 ; break ; // 6
taylornichols 1:f531f70a27c3 103 case 0x8 : pin_value = pin_value * 10 + 7 ; break ; // 7
taylornichols 1:f531f70a27c3 104 case 0x80 : pin_value = pin_value * 10 + 8 ; break ; // 8
taylornichols 1:f531f70a27c3 105 case 0x800 : pin_value = pin_value * 10 + 9 ; break ; // 9
taylornichols 0:dd375f44efef 106 }
taylornichols 3:861e3433e5e1 107
taylornichols 5:571cd0eea9be 108 #if LCD_ON
taylornichols 5:571cd0eea9be 109 lcd.locate ( pin_col + pin_count , pin_row ) ;
taylornichols 5:571cd0eea9be 110 lcd.printf ( "*" ) ;
taylornichols 5:571cd0eea9be 111 #endif
taylornichols 5:571cd0eea9be 112
taylornichols 1:f531f70a27c3 113 if ( pin_count == 3 )
taylornichols 0:dd375f44efef 114 {
taylornichols 1:f531f70a27c3 115 com.printf ( "p%04d\n\r" , pin_value ) ; // transmit pin
taylornichols 3:861e3433e5e1 116
taylornichols 3:861e3433e5e1 117 pin_value = pin_count = 0 ; // reset pin
taylornichols 3:861e3433e5e1 118
taylornichols 1:f531f70a27c3 119 char readbuffer [ 2 ] ;
taylornichols 3:861e3433e5e1 120 com.gets ( readbuffer , 2 ) ; // receive verification
taylornichols 3:861e3433e5e1 121
taylornichols 5:571cd0eea9be 122 #if LCD_ON
taylornichols 5:571cd0eea9be 123 lcd.locate ( 4 , 6 ) ;
taylornichols 5:571cd0eea9be 124 #endif
taylornichols 1:f531f70a27c3 125 switch ( readbuffer [ 0 ] ) // parse verification
taylornichols 1:f531f70a27c3 126 {
taylornichols 1:f531f70a27c3 127 case '0' : // INVALID
taylornichols 1:f531f70a27c3 128 led3 = ! led3 ;
taylornichols 5:571cd0eea9be 129 #if LCD_ON
taylornichols 5:571cd0eea9be 130 lcd.filled_rectangle ( 0 , 0 , 128 , 128 , RED ) ;
taylornichols 5:571cd0eea9be 131 lcd.locate ( 4 , 5 ) ;
taylornichols 5:571cd0eea9be 132 lcd.printf ( "INVALID PIN" ) ;
taylornichols 5:571cd0eea9be 133 wait_ms ( 1024 ) ;
taylornichols 5:571cd0eea9be 134 #endif
taylornichols 3:861e3433e5e1 135 read_pin ( ) ;
taylornichols 1:f531f70a27c3 136 break ;
taylornichols 1:f531f70a27c3 137
taylornichols 1:f531f70a27c3 138 case '1' : // VALID
taylornichols 1:f531f70a27c3 139 led4 = ! led4 ;
taylornichols 3:861e3433e5e1 140 char buffer [ 6 ] ;
taylornichols 1:f531f70a27c3 141 com.gets ( buffer , sizeof ( buffer ) ) ;
taylornichols 5:571cd0eea9be 142 #if LCD_ON
taylornichols 5:571cd0eea9be 143 lcd.filled_rectangle ( 0 , 0 , 128 , 128 , GREEN ) ;
taylornichols 5:571cd0eea9be 144 lcd.printf ( "Pour beer" ) ;
taylornichols 5:571cd0eea9be 145 // lcd.locate ( 4 , 8 ) ;
taylornichols 5:571cd0eea9be 146 lcd.locate ( 4 , 10 ) ;
taylornichols 5:571cd0eea9be 147 lcd.printf ( "Current owed: $%s" , buffer ) ;
taylornichols 5:571cd0eea9be 148 #endif
taylornichols 1:f531f70a27c3 149 break ;
taylornichols 1:f531f70a27c3 150
taylornichols 1:f531f70a27c3 151 default: // ERROR
taylornichols 5:571cd0eea9be 152 #if LCD_ON
taylornichols 5:571cd0eea9be 153 lcd.filled_rectangle ( 0 , 0 , 128 , 128 , YELLOW ) ;
taylornichols 5:571cd0eea9be 154 lcd.printf ( "TRANSMISSION ERROR" ) ;
taylornichols 5:571cd0eea9be 155 #endif
taylornichols 1:f531f70a27c3 156 led2 = ! led2 ;
taylornichols 3:861e3433e5e1 157 exit ( 1 ) ;
taylornichols 1:f531f70a27c3 158 break ;
taylornichols 1:f531f70a27c3 159 }
taylornichols 1:f531f70a27c3 160 return ;
taylornichols 0:dd375f44efef 161 }
taylornichols 0:dd375f44efef 162 ++ pin_count ;
taylornichols 0:dd375f44efef 163 }
taylornichols 0:dd375f44efef 164
taylornichols 0:dd375f44efef 165 int main ( )
taylornichols 0:dd375f44efef 166 {
taylornichols 2:7d499335dda5 167 pulse_interrupt.rise ( & pulse ) ;
taylornichols 0:dd375f44efef 168 interrupt.fall ( & keypad_callback ) ;
taylornichols 0:dd375f44efef 169 interrupt.mode ( PullUp ) ;
taylornichols 3:861e3433e5e1 170
taylornichols 3:861e3433e5e1 171 read_pin ( ) ;
taylornichols 0:dd375f44efef 172
taylornichols 0:dd375f44efef 173 while(1)
taylornichols 0:dd375f44efef 174 {
taylornichols 0:dd375f44efef 175 led1 = 1;
taylornichols 0:dd375f44efef 176 wait(0.2);
taylornichols 0:dd375f44efef 177 led1 = 0;
taylornichols 0:dd375f44efef 178 wait(0.2);
taylornichols 0:dd375f44efef 179 }
taylornichols 0:dd375f44efef 180 }