Denver / Mbed 2 deprecated denver_train_proj

Denver trai project

Dependencies:   mbed TextLCD

main.cpp@22:e4153ca757dd, 2018-06-11 (annotated)

Committer:
mglmx
Date:
Mon Jun 11 12:22:13 2018 +0000
Revision:
22:e4153ca757dd
Parent:
21:e6f1649add39
Child:
23:3fe9e76e06f2
Monday commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mglmx 0:4d06a6a8e785 1 #include "mbed.h"
mglmx 3:fe7010b693a0 2 #include "TextLCD.h"
mglmx 18:aa43bb62e60f 3 #include "MCP23017.h"
mglmx 22:e4153ca757dd 4 #include <string>
mglmx 22:e4153ca757dd 5 #include <iostream>
mglmx 18:aa43bb62e60f 6
mglmx 1:0ab26889af9b 7 //mbed DCC Model Train Demo
mglmx 1:0ab26889af9b 8
carlosperales95 7:e2b8461d4f05 9 /******PINS AND DECLARATIONS*******/
carlosperales95 7:e2b8461d4f05 10
mglmx 21:e6f1649add39 11
mglmx 21:e6f1649add39 12 //SWITCHES p5 - p8
mglmx 21:e6f1649add39 13 DigitalIn switch1(p5);
mglmx 21:e6f1649add39 14 DigitalIn switch2(p6);
mglmx 21:e6f1649add39 15 DigitalIn switch3(p7);
mglmx 21:e6f1649add39 16 DigitalIn switch4(p8);
carlosperales95 7:e2b8461d4f05 17
carlosperales95 10:2088b1935a93 18 //RAIL SENSORS - INT0,INT1
carlosperales95 7:e2b8461d4f05 19 //INT0 - p9
mglmx 18:aa43bb62e60f 20 InterruptIn int0(p9);
carlosperales95 7:e2b8461d4f05 21 //INT1 - p10
mglmx 18:aa43bb62e60f 22 InterruptIn int1(p10);
carlosperales95 7:e2b8461d4f05 23
carlosperales95 7:e2b8461d4f05 24 ///p11
carlosperales95 7:e2b8461d4f05 25 ///p12
carlosperales95 12:e914ca5cd44b 26
carlosperales95 7:e2b8461d4f05 27 //M0 - p13
carlosperales95 7:e2b8461d4f05 28 DigitalIn d21(p13);
carlosperales95 7:e2b8461d4f05 29 //M1 - p14
carlosperales95 7:e2b8461d4f05 30 DigitalIn d22(p14);
carlosperales95 7:e2b8461d4f05 31 //M2 - p15
carlosperales95 7:e2b8461d4f05 32 DigitalIn d23(p15);
carlosperales95 12:e914ca5cd44b 33
carlosperales95 7:e2b8461d4f05 34 //p16
carlosperales95 12:e914ca5cd44b 35 //p17
carlosperales95 12:e914ca5cd44b 36
carlosperales95 11:021210c59a95 37 //BUZZER - p18
carlosperales95 11:021210c59a95 38 DigitalOut buzz(p18); // buzz=0 doesn't beep, buzz=1 beeps
carlosperales95 7:e2b8461d4f05 39
carlosperales95 7:e2b8461d4f05 40 //POTENTIOMETER - p19
carlosperales95 13:dbf1ead12cee 41 AnalogIn pot(p19); //Gives float value pot.read(). Convert analog input to V with f*3.3
carlosperales95 7:e2b8461d4f05 42
carlosperales95 7:e2b8461d4f05 43 //DAT - p20
mglmx 3:fe7010b693a0 44 DigitalOut Track(p20); //Digital output bit used to drive track power via H-bridge
carlosperales95 7:e2b8461d4f05 45
carlosperales95 7:e2b8461d4f05 46 //LCD SCREEN - p21, p22, p23, p24, p25, p26
carlosperales95 11:021210c59a95 47 TextLCD lcd(p22,p21,p23,p24,p25,p26); // RS, E, A4, A5, A6, A7 // ldc.cls() to clear and printf(String up to 16char)
carlosperales95 7:e2b8461d4f05 48
carlosperales95 7:e2b8461d4f05 49 ///p27
carlosperales95 7:e2b8461d4f05 50 ///p28
carlosperales95 7:e2b8461d4f05 51
carlosperales95 7:e2b8461d4f05 52 //LED1 - p29
mglmx 3:fe7010b693a0 53 DigitalOut redled(p29);
carlosperales95 7:e2b8461d4f05 54 //LED2 - p30
mglmx 3:fe7010b693a0 55 DigitalOut greenled(p30);
carlosperales95 7:e2b8461d4f05 56
mglmx 18:aa43bb62e60f 57 DigitalOut led1(LED1);
mglmx 18:aa43bb62e60f 58 DigitalOut led2(LED2);
mglmx 18:aa43bb62e60f 59 DigitalOut led3(LED3);
mglmx 16:2a2da0e67793 60
mglmx 16:2a2da0e67793 61 //MCP
mglmx 16:2a2da0e67793 62 MCP23017 *mcp;
carlosperales95 12:e914ca5cd44b 63
carlosperales95 11:021210c59a95 64 //**************** FUNCTIONS FOR DENVER TRAIN ****************//
carlosperales95 10:2088b1935a93 65
mglmx 18:aa43bb62e60f 66
mglmx 22:e4153ca757dd 67 /**
mglmx 22:e4153ca757dd 68 * Activates the buzzer for 0.5 seconds.
mglmx 22:e4153ca757dd 69 **/
mglmx 22:e4153ca757dd 70 void doBuzz(){
mglmx 22:e4153ca757dd 71 buzz = 1;
mglmx 22:e4153ca757dd 72 wait(0.5);
mglmx 22:e4153ca757dd 73 buzz = 0;
mglmx 22:e4153ca757dd 74 }
mglmx 18:aa43bb62e60f 75
mglmx 22:e4153ca757dd 76 /**
mglmx 22:e4153ca757dd 77
mglmx 22:e4153ca757dd 78 */
mglmx 18:aa43bb62e60f 79 void initialize_mcp(){
mglmx 18:aa43bb62e60f 80 mcp = new MCP23017(p28,p27,0x40); //Connect to SCL - p28 and SDA - p27 and MPC I2C address 0x40
mglmx 18:aa43bb62e60f 81
mglmx 18:aa43bb62e60f 82 mcp->reset();
mglmx 18:aa43bb62e60f 83 mcp->writeRegister(0x00, (unsigned char )0xff);
mglmx 18:aa43bb62e60f 84 mcp->writeRegister(0x01, (unsigned char )0xff);
mglmx 18:aa43bb62e60f 85 mcp->writeRegister(0x02, (unsigned char )0x00);
mglmx 18:aa43bb62e60f 86 mcp->writeRegister(0x03, (unsigned char )0x00);
mglmx 18:aa43bb62e60f 87 mcp->writeRegister(0x04, (unsigned char )0xff);
mglmx 18:aa43bb62e60f 88 mcp->writeRegister(0x05, (unsigned char )0xff);
mglmx 18:aa43bb62e60f 89 mcp->writeRegister(0x06, (unsigned char )0xff);
mglmx 18:aa43bb62e60f 90 mcp->writeRegister(0x07, (unsigned char )0xff);
mglmx 18:aa43bb62e60f 91 mcp->writeRegister(0x08, (unsigned char )0xff);
mglmx 18:aa43bb62e60f 92 mcp->writeRegister(0x09, (unsigned char )0xff);
mglmx 18:aa43bb62e60f 93 mcp->writeRegister(0x0a, (unsigned char )0x42);
mglmx 18:aa43bb62e60f 94 mcp->writeRegister(0x0b, (unsigned char )0x42);
mglmx 18:aa43bb62e60f 95 mcp->writeRegister(0x0c, (unsigned char )0x00);
mglmx 18:aa43bb62e60f 96 mcp->writeRegister(0x0d, (unsigned char )0x00);
mglmx 18:aa43bb62e60f 97 }
mglmx 18:aa43bb62e60f 98
mglmx 16:2a2da0e67793 99 void interrupt0(){
mglmx 16:2a2da0e67793 100 int data = mcp->readRegister(GPIO);
mglmx 17:0a657e338356 101 lcd.cls();
mglmx 22:e4153ca757dd 102 lcd.printf("int0 %x",data);
mglmx 22:e4153ca757dd 103 redled = 1;
mglmx 22:e4153ca757dd 104 wait(0.2);
mglmx 22:e4153ca757dd 105 redled = 0;
mglmx 22:e4153ca757dd 106
mglmx 16:2a2da0e67793 107 }
mglmx 16:2a2da0e67793 108
mglmx 16:2a2da0e67793 109 void interrupt1(){
mglmx 16:2a2da0e67793 110 int data = mcp->readRegister(GPIO);
mglmx 17:0a657e338356 111 lcd.cls();
mglmx 22:e4153ca757dd 112 lcd.printf("int1 %x",data);
mglmx 22:e4153ca757dd 113 greenled = 1;
mglmx 22:e4153ca757dd 114 wait(0.2);
mglmx 22:e4153ca757dd 115 greenled = 0;
mglmx 16:2a2da0e67793 116 }
mglmx 5:ce0f66ea12c5 117
mglmx 1:0ab26889af9b 118
mglmx 1:0ab26889af9b 119 void DCC_send_command(unsigned int address, unsigned int inst, unsigned int repeat_count)
mglmx 1:0ab26889af9b 120 {
mglmx 1:0ab26889af9b 121 unsigned __int64 command = 0x0000000000000000; // __int64 is the 64-bit integer type
mglmx 1:0ab26889af9b 122 unsigned __int64 temp_command = 0x0000000000000000;
mglmx 1:0ab26889af9b 123 unsigned __int64 prefix = 0x3FFF; // 14 "1" bits needed at start
mglmx 1:0ab26889af9b 124 unsigned int error = 0x00; //error byte
mglmx 1:0ab26889af9b 125 //calculate error detection byte with xor
mglmx 1:0ab26889af9b 126 error = address ^ inst;
mglmx 1:0ab26889af9b 127 //combine packet bits in basic DCC format
mglmx 1:0ab26889af9b 128 command = (prefix<<28)|(address<<19)|(inst<<10)|((error)<<1)|0x01;
mglmx 1:0ab26889af9b 129 //printf("\n\r %llx \n\r",command);
mglmx 1:0ab26889af9b 130 int i=0;
mglmx 1:0ab26889af9b 131 //repeat DCC command lots of times
mglmx 1:0ab26889af9b 132 while(i < repeat_count) {
mglmx 1:0ab26889af9b 133 temp_command = command;
mglmx 1:0ab26889af9b 134 //loops through packet bits encoding and sending out digital pulses for a DCC command
mglmx 1:0ab26889af9b 135 for (int j=0; j<64; j++) {
mglmx 1:0ab26889af9b 136 if((temp_command&0x8000000000000000)==0) { //test packet bit
mglmx 1:0ab26889af9b 137 //send data for a "0" bit
mglmx 1:0ab26889af9b 138 Track=0;
mglmx 1:0ab26889af9b 139 wait_us(100);
mglmx 1:0ab26889af9b 140 Track=1;
mglmx 1:0ab26889af9b 141 wait_us(100);
mglmx 1:0ab26889af9b 142 //printf("0011");
mglmx 1:0ab26889af9b 143 } else {
mglmx 1:0ab26889af9b 144 //send data for a "1"bit
mglmx 1:0ab26889af9b 145 Track=0;
mglmx 1:0ab26889af9b 146 wait_us(58);
mglmx 1:0ab26889af9b 147 Track=1;
mglmx 1:0ab26889af9b 148 wait_us(58);
mglmx 1:0ab26889af9b 149 //printf("01");
mglmx 1:0ab26889af9b 150 }
mglmx 1:0ab26889af9b 151 // next bit in packet
mglmx 1:0ab26889af9b 152 temp_command = temp_command<<1;
mglmx 1:0ab26889af9b 153 }
mglmx 1:0ab26889af9b 154 i++;
mglmx 0:4d06a6a8e785 155 }
mglmx 0:4d06a6a8e785 156 }
carlosperales95 11:021210c59a95 157
mglmx 21:e6f1649add39 158 void flipSwitch(int switchId, int times){
mglmx 21:e6f1649add39 159 //Command variables for Switches using DCC
mglmx 21:e6f1649add39 160
mglmx 21:e6f1649add39 161 unsigned int SWBaddress = 0x06; //address for switch box
mglmx 21:e6f1649add39 162
mglmx 21:e6f1649add39 163 ////100DDDDD where DDDDD
mglmx 21:e6f1649add39 164 ///00001 to flip the first switch SW1 (F1 active)
mglmx 21:e6f1649add39 165 ///00010 to flip the second switch SW2 (F2 active)
mglmx 21:e6f1649add39 166 ///00100 to flip the third switch SW3 (F3 active)
mglmx 21:e6f1649add39 167 ///01000 to flip the fourth switch SW4 (F4 active)
mglmx 22:e4153ca757dd 168
mglmx 22:e4153ca757dd 169 /// 00011 maybe flips 1 and 2
mglmx 22:e4153ca757dd 170
mglmx 21:e6f1649add39 171 //example - 111111 0 00000101 0 10000000 0 10000101 1 - idleç
mglmx 21:e6f1649add39 172
mglmx 21:e6f1649add39 173 unsigned int SWBflip = 0x80; //No switches -- idle
mglmx 21:e6f1649add39 174
mglmx 21:e6f1649add39 175 switch(switchId){
mglmx 21:e6f1649add39 176 case 1:
mglmx 21:e6f1649add39 177 SWBflip = 0x81; //FLIP 1
mglmx 21:e6f1649add39 178 break;
mglmx 21:e6f1649add39 179 case 2:
mglmx 21:e6f1649add39 180 SWBflip = 0x82;
mglmx 21:e6f1649add39 181 break;
mglmx 21:e6f1649add39 182 case 3:
mglmx 21:e6f1649add39 183 SWBflip = 0x84;
mglmx 21:e6f1649add39 184 break;
mglmx 21:e6f1649add39 185 case 4:
mglmx 22:e4153ca757dd 186 SWBflip = 0x88;
mglmx 21:e6f1649add39 187 break;
mglmx 21:e6f1649add39 188 default:
mglmx 21:e6f1649add39 189 break;
mglmx 21:e6f1649add39 190
mglmx 21:e6f1649add39 191 }
carlosperales95 11:021210c59a95 192
mglmx 21:e6f1649add39 193 //Security measure not to burn the switch.
mglmx 21:e6f1649add39 194 if(times <=5){
mglmx 21:e6f1649add39 195 DCC_send_command(SWBaddress,SWBflip,times);
mglmx 21:e6f1649add39 196 }
mglmx 21:e6f1649add39 197
mglmx 21:e6f1649add39 198
mglmx 21:e6f1649add39 199 }
mglmx 21:e6f1649add39 200
mglmx 22:e4153ca757dd 201
mglmx 22:e4153ca757dd 202
mglmx 22:e4153ca757dd 203 /*
mglmx 22:e4153ca757dd 204 Check the swithces of the box. If they have 1 value the railSiwtches flip.
mglmx 22:e4153ca757dd 205 */
mglmx 22:e4153ca757dd 206
mglmx 22:e4153ca757dd 207 void switching(string sw1,string sw2, string sw3, string sw4){
mglmx 22:e4153ca757dd 208 string strInst = "1000" + sw1 + sw2 + sw3 + sw4;
mglmx 22:e4153ca757dd 209
mglmx 22:e4153ca757dd 210 //unsigned int inst = stoi(strInst);
mglmx 22:e4153ca757dd 211
mglmx 22:e4153ca757dd 212
mglmx 22:e4153ca757dd 213 //DCC_send_command(0x06,inst,5);
mglmx 22:e4153ca757dd 214
mglmx 22:e4153ca757dd 215
mglmx 22:e4153ca757dd 216 }
mglmx 22:e4153ca757dd 217
mglmx 21:e6f1649add39 218 void checkSwitch(){
mglmx 22:e4153ca757dd 219 if(switch1 == 1){
mglmx 22:e4153ca757dd 220 lcd.cls();
mglmx 22:e4153ca757dd 221 lcd.printf("Switch 1 ON - SW1");
mglmx 22:e4153ca757dd 222 flipSwitch(1,5); //IDLE
mglmx 22:e4153ca757dd 223 }else if(switch2 == 1){
mglmx 22:e4153ca757dd 224 lcd.cls();
mglmx 22:e4153ca757dd 225 lcd.printf("Switch 2 ON - SW2");
mglmx 22:e4153ca757dd 226 flipSwitch(2,5);
mglmx 22:e4153ca757dd 227 } else if(switch3 == 0){
mglmx 22:e4153ca757dd 228 lcd.cls();
mglmx 22:e4153ca757dd 229 lcd.printf("Switch 3 ON - SW3");
mglmx 22:e4153ca757dd 230 flipSwitch(3,5);
mglmx 22:e4153ca757dd 231 } else if(switch4 == 0){
mglmx 22:e4153ca757dd 232 lcd.cls();
mglmx 22:e4153ca757dd 233 lcd.printf("Switch 4 ON - IDLE");
mglmx 22:e4153ca757dd 234 flipSwitch(0,5);
mglmx 22:e4153ca757dd 235 }
mglmx 22:e4153ca757dd 236
mglmx 21:e6f1649add39 237 }
mglmx 22:e4153ca757dd 238 /*
mglmx 22:e4153ca757dd 239 void checkSwitch(){
mglmx 22:e4153ca757dd 240 int switches[] = [0,0,0,0]
mglmx 22:e4153ca757dd 241 bool changed = false;
mglmx 22:e4153ca757dd 242 if(switch1 == 1){
mglmx 22:e4153ca757dd 243 changed = true;
mglmx 22:e4153ca757dd 244 switches[0]=1;
mglmx 22:e4153ca757dd 245 }
mglmx 22:e4153ca757dd 246 if(switch2 == 1){
mglmx 22:e4153ca757dd 247 changed = true;
mglmx 22:e4153ca757dd 248 switches[1]=1;
mglmx 22:e4153ca757dd 249 }
mglmx 22:e4153ca757dd 250 if(switch3 == 1){
mglmx 22:e4153ca757dd 251 changed = true;
mglmx 22:e4153ca757dd 252 switches[2]=1;
mglmx 22:e4153ca757dd 253 }
mglmx 22:e4153ca757dd 254 if(switch4 == 1){
mglmx 22:e4153ca757dd 255 changed = true;
mglmx 22:e4153ca757dd 256 switches[3]=1;
mglmx 22:e4153ca757dd 257
mglmx 22:e4153ca757dd 258 }
mglmx 22:e4153ca757dd 259
mglmx 22:e4153ca757dd 260 if(changed){
mglmx 22:e4153ca757dd 261 switching(switches[0],switches[)
mglmx 22:e4153ca757dd 262 }
mglmx 22:e4153ca757dd 263
mglmx 22:e4153ca757dd 264
mglmx 22:e4153ca757dd 265 }
mglmx 22:e4153ca757dd 266
mglmx 22:e4153ca757dd 267 */
carlosperales95 12:e914ca5cd44b 268
carlosperales95 11:021210c59a95 269 //**************** MAIN PROGRAM FOR DENVER TRAIN ****************//
carlosperales95 11:021210c59a95 270
mglmx 1:0ab26889af9b 271 int main()
mglmx 1:0ab26889af9b 272 {
mglmx 2:f580707c44fa 273 led1 = 1;
mglmx 22:e4153ca757dd 274 wait(0.2);
mglmx 2:f580707c44fa 275 led1 = 0;
mglmx 22:e4153ca757dd 276 wait(0.2);
mglmx 2:f580707c44fa 277 led1 = 1;
mglmx 16:2a2da0e67793 278
mglmx 16:2a2da0e67793 279 initialize_mcp();
mglmx 16:2a2da0e67793 280
mglmx 22:e4153ca757dd 281 //int0.rise(&interrupt0);
mglmx 22:e4153ca757dd 282 //int1.rise(&interrupt1);
mglmx 22:e4153ca757dd 283
mglmx 22:e4153ca757dd 284
mglmx 1:0ab26889af9b 285 //typical out of box default engine DCC address is 3 (at least for Bachmann trains)
mglmx 1:0ab26889af9b 286 //Note: A DCC controller can reprogram the address whenever needed
mglmx 1:0ab26889af9b 287 unsigned int DCCaddress = 0x01;
mglmx 1:0ab26889af9b 288 //see http://www.nmra.org/standards/DCC/standards_rps/RP-921%202006%20Aug%2021.pdf
mglmx 1:0ab26889af9b 289 //01DCSSSS for speed, D is direction (fwd=1 and rev=0), C is speed(SSSSC) LSB
mglmx 1:0ab26889af9b 290 unsigned int DCCinst_forward = 0x68; //forward half speed
mglmx 1:0ab26889af9b 291 unsigned int DCCinst_reverse = 0x48; //reverse half speed
mglmx 4:50879dfb82d5 292 unsigned int DCCinst_stop = 0x50;
mglmx 1:0ab26889af9b 293 //100DDDDD for basic headlight functions
mglmx 1:0ab26889af9b 294 unsigned int DCC_func_lighton = 0x90; //F0 turns on headlight function
mglmx 1:0ab26889af9b 295 unsigned int DCC_func_dimlight = 0x91; //F0 + F1 dims headlight
mglmx 1:0ab26889af9b 296 //
mglmx 1:0ab26889af9b 297 //Basic DCC Demo Commands
mglmx 1:0ab26889af9b 298 DCC_send_command(DCCaddress,DCC_func_lighton,200); // turn light on full
mglmx 1:0ab26889af9b 299 DCC_send_command(DCCaddress,DCC_func_dimlight,200); //dim light
mglmx 1:0ab26889af9b 300 DCC_send_command(DCCaddress,DCC_func_lighton,200); //light full again
mglmx 22:e4153ca757dd 301
mglmx 22:e4153ca757dd 302
mglmx 22:e4153ca757dd 303 //DCC_send_command(0x06,0x8F,5); ALL SWITCHES
carlosperales95 19:ff21ba3a4dc5 304
mglmx 22:e4153ca757dd 305 led3 = 1; // Entering the while
carlosperales95 19:ff21ba3a4dc5 306
mglmx 22:e4153ca757dd 307 lcd.cls();
mglmx 22:e4153ca757dd 308 lcd.printf("Ready to start");
carlosperales95 19:ff21ba3a4dc5 309
carlosperales95 14:7bb998edd819 310 //Demo for stopping at the station
mglmx 1:0ab26889af9b 311 while(1) {
mglmx 4:50879dfb82d5 312
mglmx 4:50879dfb82d5 313 if(d21 == 1 || d22 == 1 || d23 == 1){
carlosperales95 14:7bb998edd819 314
mglmx 4:50879dfb82d5 315 lcd.cls();
mglmx 4:50879dfb82d5 316 lcd.printf("Choo Choo station");
carlosperales95 14:7bb998edd819 317 DCC_send_command(DCCaddress,DCCinst_stop,400); // Stop train address 3
mglmx 22:e4153ca757dd 318 checkSwitch();
mglmx 4:50879dfb82d5 319
mglmx 22:e4153ca757dd 320 }else{
mglmx 22:e4153ca757dd 321 checkSwitch();
carlosperales95 14:7bb998edd819 322 DCC_send_command(DCCaddress,DCCinst_forward,1); // Forward half speed train address 3
mglmx 4:50879dfb82d5 323 }
mglmx 4:50879dfb82d5 324
mglmx 4:50879dfb82d5 325
mglmx 4:50879dfb82d5 326 /*
mglmx 3:fe7010b693a0 327 float f = pot.read();
mglmx 3:fe7010b693a0 328 float vin = f * 3.3;
mglmx 3:fe7010b693a0 329
mglmx 2:f580707c44fa 330 led3 = 1;
mglmx 3:fe7010b693a0 331 if(switch1 == 1){
mglmx 3:fe7010b693a0 332 lcd.cls();
mglmx 3:fe7010b693a0 333 lcd.printf("Going forward");
mglmx 3:fe7010b693a0 334 greenled = 0;
mglmx 3:fe7010b693a0 335 redled = 1;
mglmx 3:fe7010b693a0 336 DCC_send_command(DCCaddress,DCCinst_forward,400); // forward half speed train address 3
mglmx 3:fe7010b693a0 337 lcd.cls();
mglmx 3:fe7010b693a0 338
mglmx 3:fe7010b693a0 339 lcd.printf("vin: %.4f",vin);
mglmx 3:fe7010b693a0 340 wait(0.2);
mglmx 3:fe7010b693a0 341
mglmx 3:fe7010b693a0 342 }else{
mglmx 3:fe7010b693a0 343 lcd.cls();
mglmx 3:fe7010b693a0 344 lcd.printf("Going backwards");
mglmx 3:fe7010b693a0 345 greenled = 1;
mglmx 3:fe7010b693a0 346 redled = 0;
mglmx 3:fe7010b693a0 347 DCC_send_command(DCCaddress,DCCinst_reverse,400); // reverse half speed train address 3
mglmx 3:fe7010b693a0 348 lcd.cls();
mglmx 3:fe7010b693a0 349
mglmx 3:fe7010b693a0 350 lcd.printf("vin: %.4f",vin);
mglmx 3:fe7010b693a0 351 wait(0.2);
mglmx 3:fe7010b693a0 352
mglmx 3:fe7010b693a0 353 }
mglmx 4:50879dfb82d5 354 */
mglmx 1:0ab26889af9b 355 }
mglmx 3:fe7010b693a0 356 }