DS2450_SHT2X_BMP280_MAX44009/DS2450_SHT2X_BMP280_MAX44009.c

   1
   2 // Copyright (c) 2015, Tobias Mueller tm(at)tm3d.de
   3 // All rights reserved.
   4 //
   5 // Redistribution and use in source and binary forms, with or without
   6 // modification, are permitted provided that the following conditions are
   7 // met:
   8 //
   9 //  * Redistributions of source code must retain the above copyright
  10 //    notice, this list of conditions and the following disclaimer.
  11 //  * Redistributions in binary form must reproduce the above copyright
  12 //    notice, this list of conditions and the following disclaimer in the
  13 //    documentation and/or other materials provided with the
  14 //    distribution.
  15 //  * All advertising materials mentioning features or use of this
  16 //    software must display the following acknowledgement: This product
  17 //    includes software developed by tm3d.de and its contributors.
  18 //  * Neither the name of tm3d.de nor the names of its contributors may
  19 //    be used to endorse or promote products derived from this software
  20 //    without specific prior written permission.
  21 //
  22 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  23 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  24 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  25 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  26 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  27 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  28 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  29 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  30 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  31 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  32 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  33
  34 #define F_CPU 8000000UL
  35 #include <avr/io.h>
  36 #include <avr/interrupt.h>
  37 #include <util/delay.h>
  38 #include <avr/wdt.h>
  39 #include <avr/sleep.h>
  40 #include <avr/pgmspace.h>
  41 #include "../common/I2C/USI_TWI_Master.h"
  42 #include "../common/I2C/SHT2x.h"
  43 #include "../common/I2C/BMP280.h"
  44 #include "../common/I2C/MAX44009.h"
  45 extern void OWINIT();
  46 extern void EXTERN_SLEEP();
  47
  48 uint8_t owid[8]={0x20, 0xA2, 0xD9, 0x84, 0x00, 0x16, 0x02, 0x5D};/**/
  49 uint8_t config_info[16]={0x01,14,0x04,0x08, 0x03,15, 0x02,16,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
  50
  51 #if (owid>128)
  52 #error "Variable not correct"
  53 #endif
  54
  55 extern uint8_t mode;
  56 extern uint8_t gcontrol;
  57 extern uint8_t reset_indicator;
  58 extern uint8_t alarmflag;
  59 volatile uint8_t wdcounter=10;
  60
  61
  62 #if  defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__)  || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__)  || defined(__AVR_ATtiny84A__)
  63 ISR(WATCHDOG_vect) {
  64 #else
  65 ISR(WDT_vect) {
  66 #endif
  67         wdcounter++;
  68         if (reset_indicator==1) reset_indicator++;
  69         else if (reset_indicator==2) mode=0;
  70 }
  71
  72 typedef union {
  73         volatile uint8_t bytes[0x20];
  74         struct {
  75                 //Page0
  76                 uint16_t A;  //0
  77                 uint16_t B;  //2
  78                 uint16_t C;  //4
  79                 uint16_t D;  //6
  80                 //Page1
  81                 uint8_t CSA1;
  82                 uint8_t CSA2;
  83                 uint8_t CSB1;
  84                 uint8_t CSB2;
  85                 uint8_t CSC1;
  86                 uint8_t CSC2;
  87                 uint8_t CSD1;
  88                 uint8_t CSD2;
  89                 //Page2
  90                 uint8_t LA;
  91                 uint8_t HA;
  92                 uint8_t LB;
  93                 uint8_t HB;
  94                 uint8_t LC;
  95                 uint8_t HC;
  96                 uint8_t LD;
  97                 uint8_t HD;
  98                 //Page3
  99                 uint8_t FC1;
 100                 uint8_t FC2;
 101                 uint8_t FC3;
 102                 uint8_t FC4;
 103                 uint8_t VCCP;
 104                 uint8_t FC5;
 105                 uint8_t FC6;
 106                 uint8_t FC7;
 107                 uint8_t convc1;
 108                 uint8_t convc2;
 109
 110
 111         };
 112 } pack_t;
 113 volatile pack_t pack;
 114
 115
 116
 117 volatile int16_t am2302_temp;
 118 volatile uint16_t am2302_hum;
 119
 120
 121 uint8_t userRegister[1];
 122 int16_t sRH,sT;
 123 volatile double temperatureC,humidityRH;
 124 volatile double l;
 125 uint32_t P;
 126 int32_t t;
 127 uint8_t max_adr=0;
 128
 129
 130
 131 int main(void){
 132         pack.A=0;
 133         pack.B=0;
 134         pack.C=0;
 135         pack.D=0;
 136         pack.CSA1=0x08;
 137         pack.CSA2=0x8C;
 138         pack.CSB1=0x08;
 139         pack.CSB2=0x8C;
 140         pack.CSC1=0x08;
 141         pack.CSC2=0x8C;
 142         pack.CSD1=0x08;
 143         pack.CSD2=0x8C;
 144         pack.HA=0xFF;
 145         pack.LA=0x00;
 146         pack.HB=0xFF;
 147         pack.LB=0x00;
 148         pack.HC=0xFF;
 149         pack.LC=0x00;
 150         pack.HD=0xFF;
 151         pack.LD=0x00;
 152         pack.VCCP=0;
 153     PORTB=0xFF-(1<<PORTB0); //Schalter kann gegen Masse sein und zieht dann immer Strom
 154         DDRB|=(1<<PORTB0); //Als Ausgang und 0
 155         PORTA=0xFF;  //All Pull up;
 156          PRR|=(1<<PRADC);  // adc for save Power
 157
 158         ACSR|=(1<<ACD);  //Disable Comparator
 159         OWINIT();
 160
 161         MCUCR &=~(1<<PUD); //All Pins Pullup...
 162         MCUCR |=(1<<BODS);
 163         WDTCSR |= ((1<<WDCE) );   // Enable the WD Change Bit//| (1<<WDE)
 164         WDTCSR |=   (1<<WDIE) |              // Enable WDT Interrupt
 165         (1<<WDP3) | (1<<WDP0);   // Set Timeout to ~8 seconds
 166
 167         gcontrol=1;
 168
 169         USI_TWI_Master_Initialise();
 170         bmp280Init();
 171         SHT2x_SoftReset();
 172         SHT2x_ReadUserRegister(userRegister);
 173         //(userRegister & ~SHT2x_RES_MASK) | SHT2x_RES_10_13BIT;
 174         SHT2x_WriteUserRegister(userRegister); //write changed user reg
 175         // --- measure humidity with "Hold Master Mode (HM)" ---
 176         //SHT2x_MeasurePoll(HUMIDITY, &sRH);
 177         // --- measure temperature with "Polling Mode" (no hold master) ---
 178         //SHT2x_MeasurePoll(TEMP, &sT);
 179         //-- calculate humidity and temperature --
 180         //temperatureC = SHT2x_CalcTemperatureC(sT);
 181         //humidityRH = SHT2x_CalcRH(sRH);
 182         if (checkMAX44009(0)) max_adr=0; else max_adr=1 ;
 183
 184         sei();
 185
 186         //DDRB|=(1<<PINB1);
 187
 188     while(1)   {
 189
 190         if (wdcounter>3) {
 191                 SHT2x_MeasurePoll(HUMIDITY, &sRH);
 192                 // --- measure temperature with "Polling Mode" (no hold master) ---
 193                 SHT2x_MeasurePoll(TEMP, &sT);
 194                 //-- calculate humidity and temperature --
 195                 temperatureC = SHT2x_CalcTemperatureC(sT);
 196                 humidityRH = SHT2x_CalcRH(sRH);
 197                 bmp280ConvertInt(&t,&P,1);
 198                 l=MAX44009getlux(max_adr);
 199                 if (l<0.030) l=0.030; //Darf nicht 0 sein. minimum -35°C Sensor minimum 0.045
 200                 //double l=1000;
 201                 l=(log(l)*1000)+32767.0;
 202                 wdcounter=0;
 203         }
 204
 205
 206
 207
 208
 209
 210                 if (gcontrol) {
 211                         //PORTB|=(1<<PINB1);
 212                         uint8_t bb=1;
 213                         uint8_t bb1=1;
 214                         for(uint8_t i=0;i<4;i++){
 215                                 if (pack.convc1&bb1) {
 216                                         if (pack.convc2&(bb)) {pack.bytes[i*2]=0;pack.bytes[i*2+1]=0;}
 217                                         bb=bb<<1;
 218                                         if (pack.convc2&(bb)) {pack.bytes[i*2]=0xFF;pack.bytes[i*2+1]=0xFF;}
 219                                         bb=bb<<1;
 220                                 } else bb=bb<<2;
 221                                 bb1=bb1<<1;
 222                         }
 223                         //CHanel A
 224                         if (pack.convc1&1) {
 225                                 /*if (pack.CSA2&0x01)   ADMUX=0; else ADMUX=0x80;
 226                                 _delay_us(100);
 227                                 ADCSRA|=(1<<ADSC);
 228                                 while ((ADCSRA&(1<<ADSC)));
 229                                 cli();pack.A=ADC;sei();*/
 230                                 uint16_t ct=(temperatureC*100.0)+32767;
 231                                 cli();pack.A=ct;sei();
 232                                 wdcounter=10;
 233                                 alarmflag=0;
 234
 235                                 if (pack.CSA2&0x08)  //AEH
 236                                         if (pack.bytes[1]>pack.HA) {alarmflag=1;pack.CSA2|=0x20;}
 237                                 if (pack.CSA2&0x04)  //AEL
 238                                         if (pack.bytes[1]<pack.LA) {alarmflag=1;pack.CSA2|=0x10;}
 239                         }
 240
 241                         if (pack.convc1&2) {
 242                                 /*if (pack.CSB2&0x01)   ADMUX=1; else ADMUX=0x81;
 243                                 _delay_us(100);
 244                                 ADCSRA|=(1<<ADSC);
 245                                 while ((ADCSRA&(1<<ADSC)));
 246                                 cli();pack.B=ADC;sei();*/
 247                                 wdcounter=10;
 248                                 cli();pack.B=humidityRH*100;sei();
 249                                 if (pack.CSB2&0x08)  //AEH
 250                                         if (pack.bytes[1]>pack.HB) {alarmflag=1;pack.CSB2|=0x20;}
 251                                 if (pack.CSB2&0x04)  //AEL
 252                                         if (pack.bytes[1]<pack.LB) {alarmflag=1;pack.CSB2|=0x10;}
 253                         }
 254
 255                         if (pack.convc1&4) {
 256                                 /*if (pack.CSC2&0x01)   ADMUX=2; else ADMUX=0x82;
 257                                 _delay_us(100);
 258                                 ADCSRA|=(1<<ADSC);
 259                                 while ((ADCSRA&(1<<ADSC)));
 260                                 cli();pack.C=ADC;sei();*/
 261                                 wdcounter=10;
 262                                 cli();pack.C=l;sei();
 263                                 if (pack.CSC2&0x08)  //AEH
 264                                         if (pack.bytes[1]>pack.HC) {alarmflag=1;pack.CSC2|=0x20;}
 265                                 if (pack.CSC2&0x04)  //AEL
 266                                         if (pack.bytes[1]<pack.LC) {alarmflag=1;pack.CSC2|=0x10;}
 267                         }
 268                         if (pack.convc1&8) {
 269                                 /*if (pack.CSD2&0x01)   ADMUX=3; else ADMUX=0x83;
 270                                 _delay_us(100);
 271                                 ADCSRA|=(1<<ADSC);
 272                                 while ((ADCSRA&(1<<ADSC)));
 273                                 cli();pack.D=ADC;sei();*/
 274                                 wdcounter=10;
 275                                 cli();pack.D=P/100.0*32.0;sei();
 276                                 if (pack.CSD2&0x08)  //AEH
 277                                         if (pack.bytes[1]>pack.HD) {alarmflag=1;pack.CSD2|=0x20;}
 278                                 if (pack.CSD2&0x04)  //AEL
 279                                         if (pack.bytes[1]<pack.LD) {alarmflag=1;pack.CSD2|=0x10;}
 280                         }
 281
 282                         EXTERN_SLEEP();
 283                         //PORTB&=~(1<<PINB1);
 284                 }
 285
 286                 /*uint8_t bb=1;
 287                 for(uint8_t i=0;i<4;i++) {
 288                         if (pack.bytes[8+i*2]&0x80) {  //Chanel as output
 289                                 if (pack.bytes[8+i*2]&0x40) {
 290                                         DDRA|=bb;
 291                                 } else {
 292                                         DDRA&=~bb;
 293                                 }
 294                         } else {
 295                                 DDRA&=~bb;
 296                         }
 297                         bb=bb*2;
 298                 }*/
 299
 300 #if  defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__)  || defined(__AVR_ATtiny85__)
 301                         if (((TIMSK & (1<<TOIE0))==0)&& (mode==0))
 302 #endif
 303 #if  defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__)  || defined(__AVR_ATtiny84__) ||defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__)  || defined(__AVR_ATtiny84A__)
 304                         if (((TIMSK0 & (1<<TOIE0))==0)&& (mode==0))
 305 #endif
 306                           {
 307
 308                         MCUCR|=(1<<SE)|(1<<SM1);
 309                         MCUCR&=~(1<<ISC01);
 310                 } else {
 311                         MCUCR|=(1<<SE);
 312                         MCUCR&=~(1<<SM1);
 313                 }
 314         //      asm("SLEEP");
 315    }
 316
 317
 318 }