Efrain Duarte / Mbed 2 deprecated Tacometro_auditivo

Tacometro auditivo para autos de 4 cilindros y 4 tiempos

Dependencies:   FastAnalogIn NVIC_set_all_priorities TextLCD mbed-dsp mbed

Fork of tacometrojala by Efrain Duarte

main.cpp@4:9fae1f1b731a, 2016-11-19 (annotated)

Committer:
efrain95
Date:
Sat Nov 19 06:47:31 2016 +0000
Revision:
4:9fae1f1b731a
Parent:
3:1c6625b2d363 
Tacometro para motor de 4 tiempos y 4 cilindros

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tony1tf 0:b8c9dffbbe7e 1 // Audio Spectrum Display
tony1tf 0:b8c9dffbbe7e 2 // Copyright 2013 Tony DiCola (tony@tonydicola.com)
tony1tf 0:b8c9dffbbe7e 3 // Code ported from the guide at http://learn.adafruit.com/fft-fun-with-fourier-transforms?view=all
tony1tf 0:b8c9dffbbe7e 4 // mods by Tony Abbey to simplify code to drive tri-colour LED as a "colour organ"
tony1tf 0:b8c9dffbbe7e 5
tony1tf 0:b8c9dffbbe7e 6 #include "mbed.h"
tony1tf 0:b8c9dffbbe7e 7 #include "NVIC_set_all_priorities.h"
tony1tf 0:b8c9dffbbe7e 8 #include <ctype.h>
tony1tf 0:b8c9dffbbe7e 9 #include "arm_math.h"
tony1tf 0:b8c9dffbbe7e 10 #include "arm_const_structs.h"
tony1tf 0:b8c9dffbbe7e 11 #include "FastAnalogIn.h"
luisda130595 1:7421267b0777 12 #include <string>
efrain95 4:9fae1f1b731a 13 #include "TextLCD.h"
tony1tf 0:b8c9dffbbe7e 14
luisda130595 1:7421267b0777 15 FastAnalogIn Audio(PTC2);
tony1tf 0:b8c9dffbbe7e 16 Serial pc(USBTX, USBRX);
efrain95 4:9fae1f1b731a 17 TextLCD lcd(PTB0,PTB1,PTC9,PTC8,PTA5,PTA4, TextLCD::LCD16x2); // rs, e, d4-d7
tony1tf 0:b8c9dffbbe7e 18
tony1tf 0:b8c9dffbbe7e 19
tony1tf 0:b8c9dffbbe7e 20 //#define RGBW_ext // Disable this line when you want to use the KL25Z on-board RGB LED.
tony1tf 0:b8c9dffbbe7e 21
tony1tf 0:b8c9dffbbe7e 22
tony1tf 0:b8c9dffbbe7e 23 #ifndef RGBW_ext
tony1tf 0:b8c9dffbbe7e 24 // RGB direct output to PWM channels - on-board RGB LED
tony1tf 0:b8c9dffbbe7e 25 PwmOut gled(LED_GREEN);
tony1tf 0:b8c9dffbbe7e 26 PwmOut rled(LED_RED);
tony1tf 0:b8c9dffbbe7e 27 PwmOut bled(LED_BLUE);
tony1tf 0:b8c9dffbbe7e 28 #else
tony1tf 0:b8c9dffbbe7e 29 // HSI to RGBW conversion with direct output to external PWM channels - RGBW LED
tony1tf 0:b8c9dffbbe7e 30 // hsi2rgbw_pwm led(PTD4, PTA12, PTA4, PTA5); //Red, Green, Blue, White
tony1tf 0:b8c9dffbbe7e 31 #endif
tony1tf 0:b8c9dffbbe7e 32
tony1tf 0:b8c9dffbbe7e 33 // Dummy ISR for disabling NMI on PTA4 - !! DO NOT REMOVE THIS !!
tony1tf 0:b8c9dffbbe7e 34 // More info at https://mbed.org/questions/1387/How-can-I-access-the-FTFA_FOPT-register-/
tony1tf 0:b8c9dffbbe7e 35 extern "C" void NMI_Handler() {
tony1tf 0:b8c9dffbbe7e 36 DigitalIn test(PTA4);
tony1tf 0:b8c9dffbbe7e 37 }
tony1tf 0:b8c9dffbbe7e 38
tony1tf 0:b8c9dffbbe7e 39
tony1tf 0:b8c9dffbbe7e 40 ////////////////////////////////////////////////////////////////////////////////
tony1tf 0:b8c9dffbbe7e 41 // CONFIGURATION
tony1tf 0:b8c9dffbbe7e 42 // These values can be changed to alter the behavior of the spectrum display.
tony1tf 0:b8c9dffbbe7e 43 // KL25Z limitations
tony1tf 0:b8c9dffbbe7e 44 // -----------------
tony1tf 0:b8c9dffbbe7e 45 // - When used with the Spectrogram python script :
tony1tf 0:b8c9dffbbe7e 46 // There is a substantial time lag between the music and the screen output.
tony1tf 0:b8c9dffbbe7e 47 // Max allowed SAMPLE_RATE_HZ is 40000
tony1tf 0:b8c9dffbbe7e 48 // Max allowed FFT_SIZE is 64
tony1tf 0:b8c9dffbbe7e 49 ////////////////////////////////////////////////////////////////////////////////
tony1tf 0:b8c9dffbbe7e 50 // A value >= 1000 and <= 1000 + PIXEL_COUNT fixes the output to a single frequency
tony1tf 0:b8c9dffbbe7e 51 // window = a single color.
luisda130595 1:7421267b0777 52 int SAMPLE_RATE_HZ = 1000; // Sample rate of the audio in hertz.
hermes_3673 3:1c6625b2d363 53 float freq=0;
tony1tf 0:b8c9dffbbe7e 54 // Useful for turning the LED display on and off with commands from the serial port.
efrain95 4:9fae1f1b731a 55 const int FFT_SIZE = 512; // Size of the FFT.
tony1tf 0:b8c9dffbbe7e 56
tony1tf 0:b8c9dffbbe7e 57 ////////////////////////////////////////////////////////////////////////////////
tony1tf 0:b8c9dffbbe7e 58 // INTERNAL STATE
tony1tf 0:b8c9dffbbe7e 59 // These shouldn't be modified unless you know what you're doing.
tony1tf 0:b8c9dffbbe7e 60 ////////////////////////////////////////////////////////////////////////////////
tony1tf 0:b8c9dffbbe7e 61 const static arm_cfft_instance_f32 *S;
tony1tf 0:b8c9dffbbe7e 62 Ticker samplingTimer;
tony1tf 0:b8c9dffbbe7e 63 float samples[FFT_SIZE*2];
tony1tf 0:b8c9dffbbe7e 64 float magnitudes[FFT_SIZE];
tony1tf 0:b8c9dffbbe7e 65 int sampleCounter = 0;
luisda130595 2:177596541c8d 66 int maxFrequencyValue = 0;
hermes_3673 3:1c6625b2d363 67 float maxValue=0.0;
hermes_3673 3:1c6625b2d363 68 int posicion=0;
hermes_3673 3:1c6625b2d363 69 int counter=0;
luisda130595 2:177596541c8d 70 int FFTFrequency = 0;
efrain95 4:9fae1f1b731a 71 float filtro[FFT_SIZE];
tony1tf 0:b8c9dffbbe7e 72
tony1tf 0:b8c9dffbbe7e 73 // Convert a frequency to the appropriate FFT bin it will fall within.
tony1tf 0:b8c9dffbbe7e 74 int frequencyToBin(float frequency)
tony1tf 0:b8c9dffbbe7e 75 {
tony1tf 0:b8c9dffbbe7e 76 float binFrequency = float(SAMPLE_RATE_HZ) / float(FFT_SIZE);
tony1tf 0:b8c9dffbbe7e 77 return int(frequency / binFrequency);
tony1tf 0:b8c9dffbbe7e 78 }
tony1tf 0:b8c9dffbbe7e 79
tony1tf 0:b8c9dffbbe7e 80
tony1tf 0:b8c9dffbbe7e 81
tony1tf 0:b8c9dffbbe7e 82 ////////////////////////////////////////////////////////////////////////////////
tony1tf 0:b8c9dffbbe7e 83 // SAMPLING FUNCTIONS
tony1tf 0:b8c9dffbbe7e 84 ////////////////////////////////////////////////////////////////////////////////
tony1tf 0:b8c9dffbbe7e 85
tony1tf 0:b8c9dffbbe7e 86 void samplingCallback()
tony1tf 0:b8c9dffbbe7e 87 {
tony1tf 0:b8c9dffbbe7e 88 // Read from the ADC and store the sample data
tony1tf 0:b8c9dffbbe7e 89 samples[sampleCounter] = (1023 * Audio) - 511.0f;
tony1tf 0:b8c9dffbbe7e 90 // Complex FFT functions require a coefficient for the imaginary part of the input.
tony1tf 0:b8c9dffbbe7e 91 // Since we only have real data, set this coefficient to zero.
tony1tf 0:b8c9dffbbe7e 92 samples[sampleCounter+1] = 0.0;
tony1tf 0:b8c9dffbbe7e 93 // Update sample buffer position and stop after the buffer is filled
tony1tf 0:b8c9dffbbe7e 94 sampleCounter += 2;
tony1tf 0:b8c9dffbbe7e 95 if (sampleCounter >= FFT_SIZE*2) {
tony1tf 0:b8c9dffbbe7e 96 samplingTimer.detach();
tony1tf 0:b8c9dffbbe7e 97 }
tony1tf 0:b8c9dffbbe7e 98 }
efrain95 4:9fae1f1b731a 99 void aplicarfiltro()
efrain95 4:9fae1f1b731a 100 {
efrain95 4:9fae1f1b731a 101 float aux;
efrain95 4:9fae1f1b731a 102 for(int i=0;i<=FFT_SIZE;i++)
efrain95 4:9fae1f1b731a 103 {
efrain95 4:9fae1f1b731a 104 aux=filtro[i]*magnitudes[i];
efrain95 4:9fae1f1b731a 105 magnitudes[i]=aux;
efrain95 4:9fae1f1b731a 106 }
efrain95 4:9fae1f1b731a 107 }
efrain95 4:9fae1f1b731a 108 void generarfiltro()
efrain95 4:9fae1f1b731a 109 {
efrain95 4:9fae1f1b731a 110
efrain95 4:9fae1f1b731a 111 for(int i=0;i<=FFT_SIZE;i++)
efrain95 4:9fae1f1b731a 112 {
efrain95 4:9fae1f1b731a 113 if(i>9)
efrain95 4:9fae1f1b731a 114 {
efrain95 4:9fae1f1b731a 115 if(i<82)
efrain95 4:9fae1f1b731a 116 {
efrain95 4:9fae1f1b731a 117 filtro[i]=1.0;
efrain95 4:9fae1f1b731a 118 }
efrain95 4:9fae1f1b731a 119 }
efrain95 4:9fae1f1b731a 120 if(i<10)
efrain95 4:9fae1f1b731a 121 {
efrain95 4:9fae1f1b731a 122 filtro[i]=0.0;
efrain95 4:9fae1f1b731a 123 }
efrain95 4:9fae1f1b731a 124 if(i>81)
efrain95 4:9fae1f1b731a 125 {
efrain95 4:9fae1f1b731a 126 filtro[i]=0;
efrain95 4:9fae1f1b731a 127 }
efrain95 4:9fae1f1b731a 128 }
efrain95 4:9fae1f1b731a 129 }
tony1tf 0:b8c9dffbbe7e 130 void samplingBegin()
tony1tf 0:b8c9dffbbe7e 131 {
tony1tf 0:b8c9dffbbe7e 132 // Reset sample buffer position and start callback at necessary rate.
tony1tf 0:b8c9dffbbe7e 133 sampleCounter = 0;
tony1tf 0:b8c9dffbbe7e 134 samplingTimer.attach_us(&samplingCallback, 1000000/SAMPLE_RATE_HZ);
tony1tf 0:b8c9dffbbe7e 135 }
tony1tf 0:b8c9dffbbe7e 136
tony1tf 0:b8c9dffbbe7e 137 bool samplingIsDone()
tony1tf 0:b8c9dffbbe7e 138 {
tony1tf 0:b8c9dffbbe7e 139 return sampleCounter >= FFT_SIZE*2;
tony1tf 0:b8c9dffbbe7e 140 }
tony1tf 0:b8c9dffbbe7e 141
tony1tf 0:b8c9dffbbe7e 142 ////////////////////////////////////////////////////////////////////////////////
luisda130595 1:7421267b0777 143 // FREQUENCY
tony1tf 0:b8c9dffbbe7e 144 ////////////////////////////////////////////////////////////////////////////////
tony1tf 0:b8c9dffbbe7e 145 ////////////////////////////////////////////////////////////////////////////////
tony1tf 0:b8c9dffbbe7e 146 // MAIN FUNCTION
tony1tf 0:b8c9dffbbe7e 147 ////////////////////////////////////////////////////////////////////////////////
tony1tf 0:b8c9dffbbe7e 148
tony1tf 0:b8c9dffbbe7e 149 int main()
tony1tf 0:b8c9dffbbe7e 150 {
tony1tf 0:b8c9dffbbe7e 151 NVIC_set_all_irq_priorities(1);
tony1tf 0:b8c9dffbbe7e 152 NVIC_SetPriority(UART0_IRQn, 0);
efrain95 4:9fae1f1b731a 153 lcd.cls();
efrain95 4:9fae1f1b731a 154 lcd.printf("RPM: ");
efrain95 4:9fae1f1b731a 155 lcd.locate(0,1);
efrain95 4:9fae1f1b731a 156 lcd.printf("F= ");
efrain95 4:9fae1f1b731a 157 const int columnafrec=3;
efrain95 4:9fae1f1b731a 158 const int columnarpm=5;
efrain95 4:9fae1f1b731a 159 const int filafrec=1;
efrain95 4:9fae1f1b731a 160 const int filarpm=0;
tony1tf 0:b8c9dffbbe7e 161
tony1tf 0:b8c9dffbbe7e 162 // Begin sampling audio
tony1tf 0:b8c9dffbbe7e 163 samplingBegin();
tony1tf 0:b8c9dffbbe7e 164
tony1tf 0:b8c9dffbbe7e 165 // Init arm_ccft_32
tony1tf 0:b8c9dffbbe7e 166 switch (FFT_SIZE)
tony1tf 0:b8c9dffbbe7e 167 {
tony1tf 0:b8c9dffbbe7e 168 case 16:
tony1tf 0:b8c9dffbbe7e 169 S = & arm_cfft_sR_f32_len16;
tony1tf 0:b8c9dffbbe7e 170 break;
tony1tf 0:b8c9dffbbe7e 171 case 32:
tony1tf 0:b8c9dffbbe7e 172 S = & arm_cfft_sR_f32_len32;
tony1tf 0:b8c9dffbbe7e 173 break;
tony1tf 0:b8c9dffbbe7e 174 case 64:
tony1tf 0:b8c9dffbbe7e 175 S = & arm_cfft_sR_f32_len64;
tony1tf 0:b8c9dffbbe7e 176 break;
tony1tf 0:b8c9dffbbe7e 177 case 128:
tony1tf 0:b8c9dffbbe7e 178 S = & arm_cfft_sR_f32_len128;
tony1tf 0:b8c9dffbbe7e 179 break;
tony1tf 0:b8c9dffbbe7e 180 case 256:
tony1tf 0:b8c9dffbbe7e 181 S = & arm_cfft_sR_f32_len256;
tony1tf 0:b8c9dffbbe7e 182 break;
tony1tf 0:b8c9dffbbe7e 183 case 512:
tony1tf 0:b8c9dffbbe7e 184 S = & arm_cfft_sR_f32_len512;
tony1tf 0:b8c9dffbbe7e 185 break;
tony1tf 0:b8c9dffbbe7e 186 case 1024:
tony1tf 0:b8c9dffbbe7e 187 S = & arm_cfft_sR_f32_len1024;
tony1tf 0:b8c9dffbbe7e 188 break;
tony1tf 0:b8c9dffbbe7e 189 case 2048:
tony1tf 0:b8c9dffbbe7e 190 S = & arm_cfft_sR_f32_len2048;
tony1tf 0:b8c9dffbbe7e 191 break;
tony1tf 0:b8c9dffbbe7e 192 case 4096:
tony1tf 0:b8c9dffbbe7e 193 S = & arm_cfft_sR_f32_len4096;
tony1tf 0:b8c9dffbbe7e 194 break;
tony1tf 0:b8c9dffbbe7e 195 }
tony1tf 0:b8c9dffbbe7e 196
luisda130595 1:7421267b0777 197 while(true) {
tony1tf 0:b8c9dffbbe7e 198 // Calculate FFT if a full sample is available.
tony1tf 0:b8c9dffbbe7e 199 if (samplingIsDone()) {
tony1tf 0:b8c9dffbbe7e 200 // Run FFT on sample data.
tony1tf 0:b8c9dffbbe7e 201 arm_cfft_f32(S, samples, 0, 1);
tony1tf 0:b8c9dffbbe7e 202 // Calculate magnitude of complex numbers output by the FFT.
tony1tf 0:b8c9dffbbe7e 203 arm_cmplx_mag_f32(samples, magnitudes, FFT_SIZE);
efrain95 4:9fae1f1b731a 204 //generar y aplicar filtro de 20hz y 200hz
efrain95 4:9fae1f1b731a 205 generarfiltro();
efrain95 4:9fae1f1b731a 206 aplicarfiltro();
luisda130595 1:7421267b0777 207 //Obtaining the value of the frequency
hermes_3673 3:1c6625b2d363 208 posicion=0;
hermes_3673 3:1c6625b2d363 209 counter=0;
hermes_3673 3:1c6625b2d363 210 maxValue=0.0;
hermes_3673 3:1c6625b2d363 211 do{
hermes_3673 3:1c6625b2d363 212 counter++;
hermes_3673 3:1c6625b2d363 213 if(magnitudes[counter]>maxValue){
hermes_3673 3:1c6625b2d363 214 maxValue=magnitudes[counter];
hermes_3673 3:1c6625b2d363 215 posicion=counter;
hermes_3673 3:1c6625b2d363 216 }
hermes_3673 3:1c6625b2d363 217
hermes_3673 3:1c6625b2d363 218 }while(counter<256);
luisda130595 1:7421267b0777 219
tony1tf 0:b8c9dffbbe7e 220 // Restart audio sampling.
tony1tf 0:b8c9dffbbe7e 221 samplingBegin();
hermes_3673 3:1c6625b2d363 222 }
hermes_3673 3:1c6625b2d363 223 freq=(float) posicion;
efrain95 4:9fae1f1b731a 224 freq=freq*1.953125;
efrain95 4:9fae1f1b731a 225 if(freq<25)
efrain95 4:9fae1f1b731a 226 {
efrain95 4:9fae1f1b731a 227 lcd.locate(columnarpm,filarpm);
efrain95 4:9fae1f1b731a 228 lcd.printf("<750 ");
efrain95 4:9fae1f1b731a 229 lcd.locate(columnafrec,filafrec);
efrain95 4:9fae1f1b731a 230 lcd.printf("%i ",(int)freq);
efrain95 4:9fae1f1b731a 231 }
efrain95 4:9fae1f1b731a 232 if(freq>=25 )
hermes_3673 3:1c6625b2d363 233 {
efrain95 4:9fae1f1b731a 234 if(freq<39)
efrain95 4:9fae1f1b731a 235 {
efrain95 4:9fae1f1b731a 236 lcd.locate(columnarpm,filarpm);
efrain95 4:9fae1f1b731a 237 lcd.printf("%i ",(int)(750+(freq-25)*20.83));
efrain95 4:9fae1f1b731a 238 lcd.locate(columnafrec,filafrec);
efrain95 4:9fae1f1b731a 239 lcd.printf("%i ",(int)freq);
efrain95 4:9fae1f1b731a 240 }
hermes_3673 3:1c6625b2d363 241 }
efrain95 4:9fae1f1b731a 242 if(freq>=39 )
hermes_3673 3:1c6625b2d363 243 {
efrain95 4:9fae1f1b731a 244 if(freq<54)
efrain95 4:9fae1f1b731a 245 {
efrain95 4:9fae1f1b731a 246 lcd.locate(columnarpm,filarpm);
efrain95 4:9fae1f1b731a 247 lcd.printf("%i ",(int)(1000+(freq-39)*33.33));
efrain95 4:9fae1f1b731a 248 lcd.locate(columnafrec,filafrec);
efrain95 4:9fae1f1b731a 249 lcd.printf("%i ",(int)freq);
efrain95 4:9fae1f1b731a 250
efrain95 4:9fae1f1b731a 251 }
hermes_3673 3:1c6625b2d363 252 }
efrain95 4:9fae1f1b731a 253 if(freq>=54 )
hermes_3673 3:1c6625b2d363 254 {
efrain95 4:9fae1f1b731a 255 if(freq<=61 )
efrain95 4:9fae1f1b731a 256 {
efrain95 4:9fae1f1b731a 257 lcd.locate(columnarpm,filarpm);
efrain95 4:9fae1f1b731a 258 lcd.printf("%i ",(int)(1500+(freq-54)*71.42));
efrain95 4:9fae1f1b731a 259 lcd.locate(columnafrec,filafrec);
efrain95 4:9fae1f1b731a 260 lcd.printf("%i ",(int)freq);
efrain95 4:9fae1f1b731a 261 }
efrain95 4:9fae1f1b731a 262 }
efrain95 4:9fae1f1b731a 263 if(freq>61 )
efrain95 4:9fae1f1b731a 264 {
efrain95 4:9fae1f1b731a 265 if(freq<=82 )
efrain95 4:9fae1f1b731a 266 {
efrain95 4:9fae1f1b731a 267 lcd.locate(columnarpm,filarpm);
efrain95 4:9fae1f1b731a 268 lcd.printf("%i ",((int)(2000+(freq-62)*23.8)));
efrain95 4:9fae1f1b731a 269 lcd.locate(columnafrec,filafrec);
efrain95 4:9fae1f1b731a 270 lcd.printf("%i ",(int)freq);
efrain95 4:9fae1f1b731a 271 }
hermes_3673 3:1c6625b2d363 272 }
efrain95 4:9fae1f1b731a 273 if(freq>82 )
hermes_3673 3:1c6625b2d363 274 {
efrain95 4:9fae1f1b731a 275 if(freq<=102 )
efrain95 4:9fae1f1b731a 276 {
efrain95 4:9fae1f1b731a 277 lcd.locate(columnarpm,filarpm);
efrain95 4:9fae1f1b731a 278 lcd.printf("%i ",(int)(2500+(freq-83)*25));
efrain95 4:9fae1f1b731a 279 lcd.locate(columnafrec,filafrec);
efrain95 4:9fae1f1b731a 280 lcd.printf("%i ",(int)freq);
efrain95 4:9fae1f1b731a 281 }
hermes_3673 3:1c6625b2d363 282 }
efrain95 4:9fae1f1b731a 283 if(freq>102 )
efrain95 4:9fae1f1b731a 284 {
efrain95 4:9fae1f1b731a 285 if(freq<=107)
efrain95 4:9fae1f1b731a 286 {
efrain95 4:9fae1f1b731a 287 lcd.locate(columnarpm,filarpm);
efrain95 4:9fae1f1b731a 288 lcd.printf("%i ",(int)(3000+(freq-103)*100));
efrain95 4:9fae1f1b731a 289 lcd.locate(columnafrec,filafrec);
efrain95 4:9fae1f1b731a 290 lcd.printf("%i",(int)freq);
efrain95 4:9fae1f1b731a 291 }
efrain95 4:9fae1f1b731a 292 }
efrain95 4:9fae1f1b731a 293 if(freq>107 )
hermes_3673 3:1c6625b2d363 294 {
efrain95 4:9fae1f1b731a 295 if(freq<=129)
efrain95 4:9fae1f1b731a 296 {
efrain95 4:9fae1f1b731a 297 lcd.locate(columnarpm,filarpm);
efrain95 4:9fae1f1b731a 298 lcd.printf("%i ",(int)(3500+(freq-108)*22.72));
efrain95 4:9fae1f1b731a 299 lcd.locate(columnafrec,filafrec);
efrain95 4:9fae1f1b731a 300 lcd.printf("%i",(int)freq);
efrain95 4:9fae1f1b731a 301 }
hermes_3673 3:1c6625b2d363 302 }
efrain95 4:9fae1f1b731a 303 if(freq>129)
hermes_3673 3:1c6625b2d363 304 {
efrain95 4:9fae1f1b731a 305
efrain95 4:9fae1f1b731a 306 if(freq<=133)
efrain95 4:9fae1f1b731a 307 {
efrain95 4:9fae1f1b731a 308 lcd.locate(columnarpm,filarpm);
efrain95 4:9fae1f1b731a 309 lcd.printf("4000 ");
efrain95 4:9fae1f1b731a 310 lcd.locate(columnafrec,filafrec);
efrain95 4:9fae1f1b731a 311 lcd.printf("%i",(int)freq);
efrain95 4:9fae1f1b731a 312 }
hermes_3673 3:1c6625b2d363 313 }
efrain95 4:9fae1f1b731a 314 if(freq>133)
efrain95 4:9fae1f1b731a 315 {
efrain95 4:9fae1f1b731a 316 lcd.locate(columnarpm,filarpm);
efrain95 4:9fae1f1b731a 317 lcd.printf("4000>");
efrain95 4:9fae1f1b731a 318 lcd.locate(columnafrec,filafrec);
efrain95 4:9fae1f1b731a 319 lcd.printf("%i",(int)freq);
efrain95 4:9fae1f1b731a 320 }
tony1tf 0:b8c9dffbbe7e 321 }
luisda130595 1:7421267b0777 322
tony1tf 0:b8c9dffbbe7e 323 }