DS18B20_BMP280_DS2438_SHT/DS18B20_DS2438.c

   1 // Copyright (c) 2015, Tobias Mueller tm(at)tm3d.de
   2 // All rights reserved.
   3 //
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   5 // modification, are permitted provided that the following conditions are
   6 // met:
   7 //
   8 //  * Redistributions of source code must retain the above copyright
   9 //    notice, this list of conditions and the following disclaimer.
  10 //  * Redistributions in binary form must reproduce the above copyright
  11 //    notice, this list of conditions and the following disclaimer in the
  12 //    documentation and/or other materials provided with the
  13 //    distribution.
  14 //  * All advertising materials mentioning features or use of this
  15 //    software must display the following acknowledgement: This product
  16 //    includes software developed by tm3d.de and its contributors.
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  18 //    be used to endorse or promote products derived from this software
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  20 //
  21 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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  29 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32
  33 #define F_CPU 8000000UL
  34 #include <avr/io.h>
  35 #include <avr/interrupt.h>
  36 #include <util/delay.h>
  37 #include <avr/wdt.h>
  38 #include <avr/sleep.h>
  39 #include <avr/pgmspace.h>
  40 #include "../common/I2C/USI_TWI_Master.h"
  41 #include "../common/I2C/SHT2x.h"
  42 #include "../common/I2C/BMP280.h"
  43 #include "../common/calibr.h"
  44
  45 extern void OWINIT();
  46 extern void EXTERN_SLEEP();
  47
  48
  49 uint8_t owid1[8]={0x28, 0xA3, 0xD9, 0x84, 0x00, 0x16, 0x05, 0x18};/**/
  50 uint8_t owid2[8]={0x26, 0xA3, 0xD9, 0x84, 0x00, 0x16, 0x05, 0x67};/**/
  51 uint8_t config_info1[16]={0x02,0x03, 0x00,0x00, 0x00,0x00, 0x00,0x00, 0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
  52 uint8_t config_info2[16]={0x01,0x06, 0x05,0x08, 0x04,0x07, 0x00,0x00, 0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
  53
  54 #if (owid>128)
  55 #error "Variable not correct"
  56 #endif
  57
  58 extern uint8_t mode;
  59 extern uint8_t gcontrol;
  60 extern uint8_t reset_indicator;
  61 extern uint8_t alarmflag;
  62 volatile uint8_t wdcounter=3;
  63
  64
  65 #if  defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__)  || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__)  || defined(__AVR_ATtiny84A__)
  66 ISR(WATCHDOG_vect) {
  67         #else
  68         ISR(WDT_vect) {
  69
  70 #endif
  71         //sleep_disable();          // Disable Sleep on Wakeup
  72         wdcounter++;
  73         if (reset_indicator==1) reset_indicator++;
  74         else if (reset_indicator==2) mode=0;
  75 /*      if (timeout==2) {
  76                 DIS_TIMER;
  77                 EN_OWINT;
  78                 mode=OWM_SLEEP;
  79         }
  80         timeout++;*/
  81         //sleep_enable();           // Enable Sleep Mode
  82
  83 }
  84
  85
  86 typedef union {
  87         volatile uint8_t bytes[8];
  88         struct {
  89                 uint16_t temp;  //0
  90                 uint8_t TH;  //2
  91                 uint8_t TL;  //3
  92                 uint8_t config;  //4
  93                 uint8_t rrFF; //5
  94                 uint8_t rr00; //6
  95                 uint8_t rr10; //7
  96         };
  97 } pack1_t;
  98 volatile pack1_t pack1;
  99
 100
 101
 102 typedef union {
 103         #if  defined(__AVR_ATtiny25__)
 104         volatile uint8_t bytes[16];
 105         #else
 106         volatile uint8_t bytes[64];
 107         #endif
 108         struct {
 109                 uint8_t status;  //1
 110                 int16_t temp;  //2
 111                 uint16_t voltage;  //4
 112                 uint16_t current;  //6
 113                 uint8_t threshold; //8
 114
 115                 uint8_t page1[8]; //9
 116                 #if  defined(__AVR_ATtiny25__)
 117                 #else
 118                 uint8_t page2[8]; //17
 119                 uint8_t page3[8]; //25
 120                 uint8_t page4[8];  //33
 121                 uint8_t page5[8];  //41
 122                 uint8_t page6[8];  //49
 123                 uint8_t page7[8];  //57
 124                 //uint8_t crc;  //65
 125                 #endif
 126         };
 127 } pack2_t;
 128 volatile pack2_t pack2;
 129
 130
 131
 132
 133 volatile int16_t am2302_temp;
 134 volatile uint16_t am2302_hum;
 135
 136
 137 int testSW(void) {
 138         uint8_t r;
 139         DDRB&=~(1<<PORTB0);  //Eingang
 140         __asm__ __volatile__ ("nop");
 141         PORTB|=(1<<PORTB0); //Pullup
 142         __asm__ __volatile__ ("nop");
 143         __asm__ __volatile__ ("nop");
 144         __asm__ __volatile__ ("nop");
 145         __asm__ __volatile__ ("nop");
 146         __asm__ __volatile__ ("nop");
 147         r=PINB&(1<<PORTB0);
 148         __asm__ __volatile__ ("nop");
 149         PORTB&=~(1<<PORTB0);
 150         __asm__ __volatile__ ("nop");
 151         DDRB|=(1<<PORTB0);  //Eingang
 152         return (r==0);
 153
 154
 155 }
 156
 157 uint8_t userRegister[1];
 158 int16_t sRH,sT;
 159 volatile double temperatureC,humidityRH;
 160 volatile double l;
 161         uint32_t P;
 162         int32_t t;
 163
 164 int main(void){
 165     PRR|=(1<<PRADC);  // adc for save Power
 166         PORTA=0xFF;
 167         PORTB=0xFF-(1<<PORTB0); //Schalter kann gegen Masse sein und zieht dann immer Strom
 168         DDRB|=(1<<PORTB0); //Als Ausgang und 0
 169
 170         pack1.temp=0x0550;
 171         pack1.config=0x7F;
 172         pack1.TH=75;
 173         pack1.TL=70;
 174         pack1.rrFF=0xFF;
 175         pack1.rr00=0;
 176         pack1.rr10=0x10;
 177         PORTA=0xFF;
 178         PORTB=0xFF;
 179         OWINIT();
 180
 181         ACSR|=(1<<ACD);  //Disable Comparator
 182         ADCSRB|=(1<<ACME); //Disable Analog multiplexer
 183         MCUCR &=~(1<<PUD); //All Pins Pullup...
 184         //MCUCR &=~(1<<BODS);
 185
 186
 187         WDTCSR |= ((1<<WDCE) );   // Enable the WD Change Bit//| (1<<WDE)
 188         WDTCSR |=   (1<<WDIE) |              // Enable WDT Interrupt
 189         (1<<WDP3) | (1<<WDP0);   // Set Timeout to ~8 seconds
 190         if (testSW()) {
 191                 config_info2[5]=8;
 192                 }else{
 193                 config_info2[5]=7;
 194         }
 195
 196
 197         MCUSR=0;
 198         USI_TWI_Master_Initialise();
 199
 200         SHT2x_SoftReset();
 201         SHT2x_ReadUserRegister(userRegister);
 202         //(userRegister & ~SHT2x_RES_MASK) | SHT2x_RES_10_13BIT;
 203         SHT2x_WriteUserRegister(userRegister); //write changed user reg
 204         // --- measure humidity with "Hold Master Mode (HM)" ---
 205         //SHT2x_MeasurePoll(HUMIDITY, &sRH);
 206         // --- measure temperature with "Polling Mode" (no hold master) ---
 207         //SHT2x_MeasurePoll(TEMP, &sT);
 208         //-- calculate humidity and temperature --
 209         //temperatureC = SHT2x_CalcTemperatureC(sT);
 210         //humidityRH = SHT2x_CalcRH(sRH);
 211         bmp280Init();
 212         gcontrol=1;
 213         sei();
 214     while(1)   {
 215                 if (gcontrol) {
 216                         wdcounter=3;
 217
 218                 }
 219
 220                 if (wdcounter>2) {
 221                         SHT2x_MeasurePoll(HUMIDITY, &sRH);
 222                         // --- measure temperature with "Polling Mode" (no hold master) ---
 223                         SHT2x_MeasurePoll(TEMP, &sT);
 224                         //-- calculate humidity and temperature --
 225                         temperatureC = SHT2x_CalcTemperatureC(sT);
 226                         humidityRH = SHT2x_CalcRH(sRH);
 227                         humidityRH=calibr_hum(temperatureC,-0.45,humidityRH)*10.0;
 228                         temperatureC=temperatureC*10.0-4.5;
 229                          if (testSW()) {
 230                                  am2302_hum= humidityRH*10.0;
 231                                  am2302_temp=temperatureC*25.6;
 232                                  am2302_temp=am2302_temp-20;
 233                                  config_info2[5]=8;
 234
 235                                  }else{
 236
 237                                  double hhum=(1.0546-0.000216*temperatureC)*(humidityRH);
 238                                  //am2302_hum=0.318*hhum +76.0;
 239                                  am2302_hum=0.31*hhum +80;
 240                                  am2302_temp=temperatureC*25.6;
 241                                  am2302_temp=am2302_temp-20;
 242                                  config_info2[5]=7;
 243                          }
 244                         wdcounter=0;
 245                 }
 246
 247                 if (gcontrol==1) {
 248
 249                                 bmp280ConvertInt(&t,&P,1);
 250                                 P=P-70000;
 251                                 P=P/20;
 252                                 uint16_t w=P;
 253                                 uint8_t t8=w>>4;
 254                                 uint8_t af=0;
 255                                 if (t8>pack1.TH) af=1;
 256                                 if (t8<=pack1.TL) af=1;
 257                                 cli();
 258                                 pack1.temp=w;
 259                                 //pack.temp++;
 260                                 alarmflag=af;
 261                                 sei();
 262                                 gcontrol=0;
 263                                 EXTERN_SLEEP();
 264                 }
 265                 if (gcontrol) {
 266                         gcontrol=0;
 267
 268                 }
 269
 270
 271 #if  defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__)  || defined(__AVR_ATtiny85__)
 272                         if (((TIMSK & (1<<TOIE0))==0)&& (mode==0))
 273 #endif
 274 #if  defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__)  || defined(__AVR_ATtiny84__) ||defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__)  || defined(__AVR_ATtiny84A__)
 275                         if (((TIMSK0 & (1<<TOIE0))==0)&& (mode==0))
 276 #endif
 277                           {
 278
 279                         MCUCR|=(1<<SE)|(1<<SM1);
 280                         MCUCR&=~(1<<ISC01);
 281                 } else {
 282                         MCUCR|=(1<<SE);
 283                         MCUCR&=~(1<<SM1);
 284                 }
 285                 //MCUCR&=~(1<<ISC01);
 286                 asm("SLEEP");
 287    }
 288
 289
 290 }