Geo Electronics "Show2Me" / Mbed 2 deprecated GEO_SHOW2ME_F411RE

Show2Me control FW, initial shared version

Dependencies:   SDFileSystem_HelloWorld mbed FATFileSystem

Fork of 000_GEO_SHOW2ME_OK_F411RE by Walter Trovo

/media/uploads/walter76/img-1277.jpg

main.cpp@2:bbc3e860fa3d, 2018-02-13 (annotated)

Committer:
walter76
Date:
Tue Feb 13 08:22:23 2018 +0000
Revision:
2:bbc3e860fa3d
Parent:
0:bdbd3d6fc5d5 
Preliminary version used to test all HW sections

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 0:bdbd3d6fc5d5 1 #include "mbed.h"
mbed_official 0:bdbd3d6fc5d5 2 #include "SDFileSystem.h"
walter76 2:bbc3e860fa3d 3 #include "ST7565_LCD.h"
walter76 2:bbc3e860fa3d 4 #include "QEI.h"
walter76 2:bbc3e860fa3d 5
walter76 2:bbc3e860fa3d 6 #define BAT_GAIN 6.80
walter76 2:bbc3e860fa3d 7 #define BAT_OFFS 0.0
walter76 2:bbc3e860fa3d 8
walter76 2:bbc3e860fa3d 9 PwmOut BEEP (D2); // Buzzer/speaker (PWM output)
walter76 2:bbc3e860fa3d 10 PwmOut BKL (D3); // LCD backlight control (PMW output)
walter76 2:bbc3e860fa3d 11 DigitalOut KAL (D0); // Keep-Alive/turn-off
walter76 2:bbc3e860fa3d 12 DigitalOut BTC (D2); // Aux BT module control
walter76 2:bbc3e860fa3d 13 DigitalIn Button (D4); // Pushbutton (digital input)
walter76 2:bbc3e860fa3d 14 AnalogIn BATT (A0); // Battery monitor
walter76 2:bbc3e860fa3d 15 AnalogIn ALS (A1); // Ambient Light sensor
mbed_official 0:bdbd3d6fc5d5 16
walter76 2:bbc3e860fa3d 17 SDFileSystem sd(PB_15, PB_14, PB_13, PB_1, "sd"); // MOSI, MISO, SCK, CS
walter76 2:bbc3e860fa3d 18
walter76 2:bbc3e860fa3d 19 // Quadrature encoder
walter76 2:bbc3e860fa3d 20 QEI Wheel(D5, D6, NC, 16);
walter76 2:bbc3e860fa3d 21
walter76 2:bbc3e860fa3d 22 // Tickers
walter76 2:bbc3e860fa3d 23 Ticker Sec_Beat; // Timer ticker
walter76 2:bbc3e860fa3d 24 Ticker Display_Refresh; // Display refresh ticker
walter76 2:bbc3e860fa3d 25
walter76 2:bbc3e860fa3d 26 //Serial ports
walter76 2:bbc3e860fa3d 27 Serial PC(USBTX, USBRX); // Virtual COM via USB
walter76 2:bbc3e860fa3d 28 //Serial BT_module(D1, D0); // BlueTooth module
walter76 2:bbc3e860fa3d 29
walter76 2:bbc3e860fa3d 30
walter76 2:bbc3e860fa3d 31 extern unsigned int buffer[128*64/8]; // RAM buffer used by LCD
walter76 2:bbc3e860fa3d 32 time_t seconds; // timestamp
walter76 2:bbc3e860fa3d 33 char Text[40]=""; // Text string used by LCD
walter76 2:bbc3e860fa3d 34 float Vbatt, ALLevel; // battery votage and ambient light level
walter76 2:bbc3e860fa3d 35
walter76 2:bbc3e860fa3d 36 // ------------------- Prototypes -----------------------
walter76 2:bbc3e860fa3d 37 void Timer_tick(void);
walter76 2:bbc3e860fa3d 38 void Update_Display(void);
walter76 2:bbc3e860fa3d 39 void Set_Time(void);
walter76 2:bbc3e860fa3d 40 void Read_Voltages(void);
walter76 2:bbc3e860fa3d 41 void PowerOff(void);
walter76 2:bbc3e860fa3d 42
walter76 2:bbc3e860fa3d 43 int main()
walter76 2:bbc3e860fa3d 44 {
walter76 2:bbc3e860fa3d 45
walter76 2:bbc3e860fa3d 46 KAL = 1; // ensure self-sustained power
walter76 2:bbc3e860fa3d 47 //Button.mode(PullUp); // enable pushbutton pull-up
walter76 2:bbc3e860fa3d 48 BKL.period_ms(3); // set LCD backlight PWM
walter76 2:bbc3e860fa3d 49 BKL.write(1.0);
walter76 2:bbc3e860fa3d 50 BEEP.period_us(2300); // set initial buzzer period and duty-cycle
walter76 2:bbc3e860fa3d 51 BEEP.write(0.2);
walter76 2:bbc3e860fa3d 52 Wheel.reset(); // clear encoder
walter76 2:bbc3e860fa3d 53 LCD_reset();
walter76 2:bbc3e860fa3d 54
walter76 2:bbc3e860fa3d 55 // splash screen with date and time
walter76 2:bbc3e860fa3d 56 sprintf(Text,__DATE__);
walter76 2:bbc3e860fa3d 57 LCD_drawstring(buffer, 60, 5, Text);
walter76 2:bbc3e860fa3d 58 sprintf(Text,__TIME__);
walter76 2:bbc3e860fa3d 59 LCD_drawstring(buffer, 78, 6, Text);
walter76 2:bbc3e860fa3d 60 LCD_write_buffer(buffer);
walter76 2:bbc3e860fa3d 61
walter76 2:bbc3e860fa3d 62
walter76 2:bbc3e860fa3d 63 // enable LCD refresh ticker
walter76 2:bbc3e860fa3d 64 Display_Refresh.attach(&Update_Display, 0.3);
walter76 2:bbc3e860fa3d 65
walter76 2:bbc3e860fa3d 66 if(Button) // if pushbutton is pressed
walter76 2:bbc3e860fa3d 67 Set_Time(); // set RTC time and date
walter76 2:bbc3e860fa3d 68
walter76 2:bbc3e860fa3d 69 wait(2);
walter76 2:bbc3e860fa3d 70 Clear_buffer(buffer);
walter76 2:bbc3e860fa3d 71 BKL.write(0.5);
mbed_official 0:bdbd3d6fc5d5 72
walter76 2:bbc3e860fa3d 73 //PowerOff(); // Power-off test
walter76 2:bbc3e860fa3d 74
walter76 2:bbc3e860fa3d 75
walter76 2:bbc3e860fa3d 76 // enable sec-beat ticker
walter76 2:bbc3e860fa3d 77 Sec_Beat.attach(&Timer_tick, 1);
walter76 2:bbc3e860fa3d 78
walter76 2:bbc3e860fa3d 79
walter76 2:bbc3e860fa3d 80
walter76 2:bbc3e860fa3d 81 printf("Hello World!\n");
walter76 2:bbc3e860fa3d 82 mkdir("/sd/system", 0777);
walter76 2:bbc3e860fa3d 83 FILE *fp = fopen("/sd/system/sdlog.txt", "w");
mbed_official 0:bdbd3d6fc5d5 84 if(fp == NULL) {
mbed_official 0:bdbd3d6fc5d5 85 error("Could not open file for write\n");
mbed_official 0:bdbd3d6fc5d5 86 }
mbed_official 0:bdbd3d6fc5d5 87 fprintf(fp, "Hello fun SD Card World!");
mbed_official 0:bdbd3d6fc5d5 88 fclose(fp);
mbed_official 0:bdbd3d6fc5d5 89 printf("Goodbye World!\n");
walter76 2:bbc3e860fa3d 90
walter76 2:bbc3e860fa3d 91 while(1)
walter76 2:bbc3e860fa3d 92 {
walter76 2:bbc3e860fa3d 93 // dance
walter76 2:bbc3e860fa3d 94 }
walter76 2:bbc3e860fa3d 95
walter76 2:bbc3e860fa3d 96
mbed_official 0:bdbd3d6fc5d5 97 }
walter76 2:bbc3e860fa3d 98
walter76 2:bbc3e860fa3d 99
walter76 2:bbc3e860fa3d 100 //===========================================================================
walter76 2:bbc3e860fa3d 101
walter76 2:bbc3e860fa3d 102 // ------------- Called every second ----------------------
walter76 2:bbc3e860fa3d 103
walter76 2:bbc3e860fa3d 104 void Timer_tick()
walter76 2:bbc3e860fa3d 105 {
walter76 2:bbc3e860fa3d 106 seconds = time(NULL);
walter76 2:bbc3e860fa3d 107 strftime(Text, 50, "%d-%b-%Y %H:%M:%S", localtime(&seconds));
walter76 2:bbc3e860fa3d 108 LCD_drawstring(buffer, 0, 0, Text);
walter76 2:bbc3e860fa3d 109
walter76 2:bbc3e860fa3d 110 // read voltages
walter76 2:bbc3e860fa3d 111 Read_Voltages();
walter76 2:bbc3e860fa3d 112
walter76 2:bbc3e860fa3d 113 // write values to buffer
walter76 2:bbc3e860fa3d 114 sprintf(Text,"VBATT= %4.2f", Vbatt);
walter76 2:bbc3e860fa3d 115 LCD_drawstring(buffer, 0, 2, Text);
walter76 2:bbc3e860fa3d 116 sprintf(Text,"ALL= %4.2f", ALLevel);
walter76 2:bbc3e860fa3d 117 LCD_drawstring(buffer, 0, 3, Text);
walter76 2:bbc3e860fa3d 118
walter76 2:bbc3e860fa3d 119 // Send data to COM port
walter76 2:bbc3e860fa3d 120 //PC.printf("Tset= %3.0f, Tpit= %3.0f, Tmeat= %3.0f, PWM= %3.0f\n",Tset, Tpit, Tmeat, FanSpeed);
walter76 2:bbc3e860fa3d 121
walter76 2:bbc3e860fa3d 122 //LCD_write_buffer(buffer); // LCD update
walter76 2:bbc3e860fa3d 123
walter76 2:bbc3e860fa3d 124 return;
walter76 2:bbc3e860fa3d 125 }
walter76 2:bbc3e860fa3d 126
walter76 2:bbc3e860fa3d 127
walter76 2:bbc3e860fa3d 128 //---------------------------------------------------------------------------
walter76 2:bbc3e860fa3d 129 void Update_Display(void)
walter76 2:bbc3e860fa3d 130 {
walter76 2:bbc3e860fa3d 131 LCD_write_buffer(buffer); // LCD update
walter76 2:bbc3e860fa3d 132 return;
walter76 2:bbc3e860fa3d 133 }
walter76 2:bbc3e860fa3d 134
walter76 2:bbc3e860fa3d 135 //---------------------------------------------------------------------------
walter76 2:bbc3e860fa3d 136 void Set_Time(void)
walter76 2:bbc3e860fa3d 137 {
walter76 2:bbc3e860fa3d 138 uint8_t Year=0, Month=0, Day=0, Hours=0, Mins=0, Secs=0;
walter76 2:bbc3e860fa3d 139 time_t seconds;
walter76 2:bbc3e860fa3d 140 struct tm t;
walter76 2:bbc3e860fa3d 141
walter76 2:bbc3e860fa3d 142 sprintf(Text,"TIME & DATE SETTING");
walter76 2:bbc3e860fa3d 143 LCD_drawstring(buffer, 0, 0, Text);
walter76 2:bbc3e860fa3d 144
walter76 2:bbc3e860fa3d 145 // Set year
walter76 2:bbc3e860fa3d 146 while(Button);
walter76 2:bbc3e860fa3d 147 wait_ms(50);
walter76 2:bbc3e860fa3d 148
walter76 2:bbc3e860fa3d 149 while(!Button)
walter76 2:bbc3e860fa3d 150 {
walter76 2:bbc3e860fa3d 151 if(int(Wheel.getPulses())<0)
walter76 2:bbc3e860fa3d 152 Wheel.reset();
walter76 2:bbc3e860fa3d 153 Year = (uint8_t)(Wheel.getPulses());
walter76 2:bbc3e860fa3d 154
walter76 2:bbc3e860fa3d 155 if(Year>99)
walter76 2:bbc3e860fa3d 156 Wheel.reset();
walter76 2:bbc3e860fa3d 157
walter76 2:bbc3e860fa3d 158 sprintf(Text, "Year: %2d", Year);
walter76 2:bbc3e860fa3d 159 LCD_drawstring(buffer, 0, 2, Text);
walter76 2:bbc3e860fa3d 160
walter76 2:bbc3e860fa3d 161 }
walter76 2:bbc3e860fa3d 162
walter76 2:bbc3e860fa3d 163 // Set month
walter76 2:bbc3e860fa3d 164 while(Button);
walter76 2:bbc3e860fa3d 165 wait_ms(50);
walter76 2:bbc3e860fa3d 166 Wheel.reset();
walter76 2:bbc3e860fa3d 167 while(!Button)
walter76 2:bbc3e860fa3d 168 {
walter76 2:bbc3e860fa3d 169 if(int(Wheel.getPulses())<0)
walter76 2:bbc3e860fa3d 170 Wheel.reset();
walter76 2:bbc3e860fa3d 171 Month = (uint8_t)(Wheel.getPulses()/2);
walter76 2:bbc3e860fa3d 172
walter76 2:bbc3e860fa3d 173 if(Month>11)
walter76 2:bbc3e860fa3d 174 Wheel.reset();
walter76 2:bbc3e860fa3d 175
walter76 2:bbc3e860fa3d 176 sprintf(Text, "Month: %2d", Month+1);
walter76 2:bbc3e860fa3d 177 LCD_drawstring(buffer, 0, 3, Text);
walter76 2:bbc3e860fa3d 178
walter76 2:bbc3e860fa3d 179 }
walter76 2:bbc3e860fa3d 180
walter76 2:bbc3e860fa3d 181
walter76 2:bbc3e860fa3d 182 // Set day
walter76 2:bbc3e860fa3d 183 while(Button);
walter76 2:bbc3e860fa3d 184 wait_ms(50);
walter76 2:bbc3e860fa3d 185 Wheel.reset();
walter76 2:bbc3e860fa3d 186 while(!Button)
walter76 2:bbc3e860fa3d 187 {
walter76 2:bbc3e860fa3d 188 if(int(Wheel.getPulses())<0)
walter76 2:bbc3e860fa3d 189 Wheel.reset();
walter76 2:bbc3e860fa3d 190 Day = (uint8_t)(Wheel.getPulses()/2);
walter76 2:bbc3e860fa3d 191
walter76 2:bbc3e860fa3d 192 if(Day>30)
walter76 2:bbc3e860fa3d 193 Wheel.reset();
walter76 2:bbc3e860fa3d 194
walter76 2:bbc3e860fa3d 195 sprintf(Text, "Day: %2d", Day+1);
walter76 2:bbc3e860fa3d 196 LCD_drawstring(buffer, 0, 4, Text);
walter76 2:bbc3e860fa3d 197
walter76 2:bbc3e860fa3d 198 }
walter76 2:bbc3e860fa3d 199
walter76 2:bbc3e860fa3d 200 // Set hours
walter76 2:bbc3e860fa3d 201 while(Button);
walter76 2:bbc3e860fa3d 202 wait_ms(50);
walter76 2:bbc3e860fa3d 203 Wheel.reset();
walter76 2:bbc3e860fa3d 204 while(!Button)
walter76 2:bbc3e860fa3d 205 {
walter76 2:bbc3e860fa3d 206 if(int(Wheel.getPulses())<0)
walter76 2:bbc3e860fa3d 207 Wheel.reset();
walter76 2:bbc3e860fa3d 208 Hours = (uint8_t)(Wheel.getPulses()/2);
walter76 2:bbc3e860fa3d 209
walter76 2:bbc3e860fa3d 210 if(Hours>22)
walter76 2:bbc3e860fa3d 211 Wheel.reset();
walter76 2:bbc3e860fa3d 212
walter76 2:bbc3e860fa3d 213 sprintf(Text, "Hours: %2d", Hours+1);
walter76 2:bbc3e860fa3d 214 LCD_drawstring(buffer, 0, 5, Text);
walter76 2:bbc3e860fa3d 215
walter76 2:bbc3e860fa3d 216 }
walter76 2:bbc3e860fa3d 217 Hours++;
walter76 2:bbc3e860fa3d 218
walter76 2:bbc3e860fa3d 219 // Set minutes
walter76 2:bbc3e860fa3d 220 while(Button);
walter76 2:bbc3e860fa3d 221 wait_ms(50);
walter76 2:bbc3e860fa3d 222 Wheel.reset();
walter76 2:bbc3e860fa3d 223 while(!Button)
walter76 2:bbc3e860fa3d 224 {
walter76 2:bbc3e860fa3d 225 if(int(Wheel.getPulses())<0)
walter76 2:bbc3e860fa3d 226 Wheel.reset();
walter76 2:bbc3e860fa3d 227 Mins = (uint8_t)(Wheel.getPulses()/2);
walter76 2:bbc3e860fa3d 228
walter76 2:bbc3e860fa3d 229 if(Mins>59)
walter76 2:bbc3e860fa3d 230 Wheel.reset();
walter76 2:bbc3e860fa3d 231
walter76 2:bbc3e860fa3d 232 sprintf(Text, "Minutes: %2d", Mins);
walter76 2:bbc3e860fa3d 233 LCD_drawstring(buffer, 0, 6, Text);
walter76 2:bbc3e860fa3d 234
walter76 2:bbc3e860fa3d 235 }
walter76 2:bbc3e860fa3d 236
walter76 2:bbc3e860fa3d 237 t.tm_year = Year + 100;
walter76 2:bbc3e860fa3d 238 t.tm_mon = Month;
walter76 2:bbc3e860fa3d 239 t.tm_mday = Day + 1;
walter76 2:bbc3e860fa3d 240 t.tm_hour = Hours;
walter76 2:bbc3e860fa3d 241 t.tm_min = Mins;
walter76 2:bbc3e860fa3d 242 t.tm_sec = Secs;
walter76 2:bbc3e860fa3d 243
walter76 2:bbc3e860fa3d 244 seconds = mktime(&t);
walter76 2:bbc3e860fa3d 245 set_time(seconds);
walter76 2:bbc3e860fa3d 246
walter76 2:bbc3e860fa3d 247 return;
walter76 2:bbc3e860fa3d 248 }
walter76 2:bbc3e860fa3d 249
walter76 2:bbc3e860fa3d 250
walter76 2:bbc3e860fa3d 251 //---------------------------------------------------------------------------
walter76 2:bbc3e860fa3d 252 void Read_Voltages(void)
walter76 2:bbc3e860fa3d 253 {
walter76 2:bbc3e860fa3d 254
walter76 2:bbc3e860fa3d 255 double ADC_value;
walter76 2:bbc3e860fa3d 256 uint8_t smooth = 10; // Number of samples to smooth
walter76 2:bbc3e860fa3d 257 uint8_t i;
walter76 2:bbc3e860fa3d 258
walter76 2:bbc3e860fa3d 259 // Read battery voltage
walter76 2:bbc3e860fa3d 260
walter76 2:bbc3e860fa3d 261 ADC_value = BATT.read(); // cleanup
walter76 2:bbc3e860fa3d 262 wait_ms(50);
walter76 2:bbc3e860fa3d 263 ADC_value = 0;
walter76 2:bbc3e860fa3d 264 for(i=0;i<smooth;i++)
walter76 2:bbc3e860fa3d 265 ADC_value += BATT.read();
walter76 2:bbc3e860fa3d 266
walter76 2:bbc3e860fa3d 267 ADC_value = ADC_value/smooth;
walter76 2:bbc3e860fa3d 268 Vbatt = (float)(ADC_value*BAT_GAIN)+BAT_OFFS;
walter76 2:bbc3e860fa3d 269
walter76 2:bbc3e860fa3d 270
walter76 2:bbc3e860fa3d 271 // Read Ambient Light Level
walter76 2:bbc3e860fa3d 272
walter76 2:bbc3e860fa3d 273 ADC_value = ALS.read(); // cleanup
walter76 2:bbc3e860fa3d 274 wait_ms(50);
walter76 2:bbc3e860fa3d 275 ADC_value = 0;
walter76 2:bbc3e860fa3d 276 for(i=0;i<smooth;i++)
walter76 2:bbc3e860fa3d 277 ADC_value += ALS.read();
walter76 2:bbc3e860fa3d 278
walter76 2:bbc3e860fa3d 279 ADC_value = ADC_value/smooth;
walter76 2:bbc3e860fa3d 280 ALLevel = (float)(ADC_value);
walter76 2:bbc3e860fa3d 281
walter76 2:bbc3e860fa3d 282 return;
walter76 2:bbc3e860fa3d 283 }
walter76 2:bbc3e860fa3d 284
walter76 2:bbc3e860fa3d 285
walter76 2:bbc3e860fa3d 286 //---------------------------------------------------------------------------
walter76 2:bbc3e860fa3d 287 void PowerOff(void)
walter76 2:bbc3e860fa3d 288 {
walter76 2:bbc3e860fa3d 289 BKL.write(1);
walter76 2:bbc3e860fa3d 290 Clear_buffer(buffer);
walter76 2:bbc3e860fa3d 291 sprintf(Text,"POWERING OFF");
walter76 2:bbc3e860fa3d 292 LCD_drawstring(buffer, 20, 3, Text);
walter76 2:bbc3e860fa3d 293 LCD_write_buffer(buffer);
walter76 2:bbc3e860fa3d 294 wait(2);
walter76 2:bbc3e860fa3d 295
walter76 2:bbc3e860fa3d 296 KAL = 0;
walter76 2:bbc3e860fa3d 297 }