DS18B20_BMP280_DS2438_SHT/DS18B20_DS2438.c

   1 // Copyright (c) 2015, Tobias Mueller tm(at)tm3d.de
   2 // All rights reserved.
   3 //
   4 // Redistribution and use in source and binary forms, with or without
   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.
  17 //  * Neither the name of tm3d.de nor the names of its contributors may
  18 //    be used to endorse or promote products derived from this software
  19 //    without specific prior written permission.
  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,
  26 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  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
  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 #endif
  70         //sleep_disable();          // Disable Sleep on Wakeup
  71         wdcounter++;
  72         if (reset_indicator==1) reset_indicator++;
  73         else if (reset_indicator==2) mode=0;
  74 /*      if (timeout==2) {
  75                 DIS_TIMER;
  76                 EN_OWINT;
  77                 mode=OWM_SLEEP;
  78         }
  79         timeout++;*/
  80         //sleep_enable();           // Enable Sleep Mode
  81
  82 }
  83
  84
  85 typedef union {
  86         volatile uint8_t bytes[8];
  87         struct {
  88                 uint16_t temp;  //0
  89                 uint8_t TH;  //2
  90                 uint8_t TL;  //3
  91                 uint8_t config;  //4
  92                 uint8_t rrFF; //5
  93                 uint8_t rr00; //6
  94                 uint8_t rr10; //7
  95         };
  96 } pack1_t;
  97 volatile pack1_t pack1;
  98
  99
 100
 101 typedef union {
 102         #if  defined(__AVR_ATtiny25__)
 103         volatile uint8_t bytes[16];
 104         #else
 105         volatile uint8_t bytes[64];
 106         #endif
 107         struct {
 108                 uint8_t status;  //1
 109                 int16_t temp;  //2
 110                 uint16_t voltage;  //4
 111                 uint16_t current;  //6
 112                 uint8_t threshold; //8
 113
 114                 uint8_t page1[8]; //9
 115                 #if  defined(__AVR_ATtiny25__)
 116                 #else
 117                 uint8_t page2[8]; //17
 118                 uint8_t page3[8]; //25
 119                 uint8_t page4[8];  //33
 120                 uint8_t page5[8];  //41
 121                 uint8_t page6[8];  //49
 122                 uint8_t page7[8];  //57
 123                 //uint8_t crc;  //65
 124                 #endif
 125         };
 126 } pack2_t;
 127 volatile pack2_t pack2;
 128
 129
 130
 131
 132 volatile int16_t am2302_temp;
 133 volatile uint16_t am2302_hum;
 134
 135
 136 int testSW(void) {
 137         uint8_t r;
 138         DDRB&=~(1<<PORTB0);  //Eingang
 139         __asm__ __volatile__ ("nop");
 140         PORTB|=(1<<PORTB0); //Pullup
 141         __asm__ __volatile__ ("nop");
 142         __asm__ __volatile__ ("nop");
 143         __asm__ __volatile__ ("nop");
 144         __asm__ __volatile__ ("nop");
 145         __asm__ __volatile__ ("nop");
 146         r=PINB&(1<<PORTB0);
 147         __asm__ __volatile__ ("nop");
 148         PORTB&=~(1<<PORTB0);
 149         __asm__ __volatile__ ("nop");
 150         DDRB|=(1<<PORTB0);  //Eingang
 151         return (r==0);
 152
 153
 154 }
 155
 156 uint8_t userRegister[1];
 157 int16_t sRH,sT;
 158 volatile double temperatureC,humidityRH;
 159 volatile double l;
 160         uint32_t P;
 161         int32_t t;
 162
 163 int main(void){
 164     PRR|=(1<<PRADC);  // adc for save Power
 165         PORTA=0xFF;
 166         PORTB=0xFF-(1<<PORTB0); //Schalter kann gegen Masse sein und zieht dann immer Strom
 167         DDRB|=(1<<PORTB0); //Als Ausgang und 0
 168
 169         pack1.temp=0x0550;
 170         pack1.config=0x7F;
 171         pack1.TH=75;
 172         pack1.TL=70;
 173         pack1.rrFF=0xFF;
 174         pack1.rr00=0;
 175         pack1.rr10=0x10;
 176         PORTA=0xFF;
 177         PORTB=0xFF;
 178         OWINIT();
 179
 180         ACSR|=(1<<ACD);  //Disable Comparator
 181         ADCSRB|=(1<<ACME); //Disable Analog multiplexer
 182         MCUCR &=~(1<<PUD); //All Pins Pullup...
 183         MCUCR |=(1<<BODS);
 184
 185
 186         WDTCSR |= ((1<<WDCE) );   // Enable the WD Change Bit//| (1<<WDE)
 187         WDTCSR |=   (1<<WDIE) |              // Enable WDT Interrupt
 188         (1<<WDP3) | (1<<WDP0);   // Set Timeout to ~8 seconds
 189         if (testSW()) {
 190                 config_info2[5]=8;
 191                 }else{
 192                 config_info2[5]=7;
 193         }
 194
 195
 196         MCUSR=0;
 197         USI_TWI_Master_Initialise();
 198         bmp280Init();
 199         SHT2x_SoftReset();
 200         SHT2x_ReadUserRegister(userRegister);
 201         //(userRegister & ~SHT2x_RES_MASK) | SHT2x_RES_10_13BIT;
 202         SHT2x_WriteUserRegister(userRegister); //write changed user reg
 203         // --- measure humidity with "Hold Master Mode (HM)" ---
 204         SHT2x_MeasurePoll(HUMIDITY, &sRH);
 205         // --- measure temperature with "Polling Mode" (no hold master) ---
 206         SHT2x_MeasurePoll(TEMP, &sT);
 207         //-- calculate humidity and temperature --
 208         temperatureC = SHT2x_CalcTemperatureC(sT);
 209         humidityRH = SHT2x_CalcRH(sRH);
 210
 211         gcontrol=1;
 212         sei();
 213     while(1)   {
 214                 if ((gcontrol==2)||(gcontrol==3)) {
 215                         wdcounter=3;
 216                         gcontrol=0;
 217                 }
 218                 if (wdcounter>3) {
 219                         SHT2x_MeasurePoll(HUMIDITY, &sRH);
 220                         // --- measure temperature with "Polling Mode" (no hold master) ---
 221                         SHT2x_MeasurePoll(TEMP, &sT);
 222                         //-- calculate humidity and temperature --
 223                         temperatureC = SHT2x_CalcTemperatureC(sT)*10.0;
 224                         humidityRH = SHT2x_CalcRH(sRH)*10.0;
 225                         double hhum=(1.0546-0.000216*temperatureC)*(humidityRH);
 226                         am2302_hum=0.318*hhum +76.0;
 227                         am2302_temp=temperatureC*25.6;
 228                         wdcounter=0;
 229                 }
 230
 231                 if (gcontrol==1) {
 232
 233                                 bmp280ConvertInt(&t,&P,1);
 234                                 P=P-70000;
 235                                 P=P/20;
 236                                 uint16_t w=P;
 237                                 uint8_t t8=w>>4;
 238                                 uint8_t af=0;
 239                                 if (t8>pack1.TH) af=1;
 240                                 if (t8<=pack1.TL) af=1;
 241                                 cli();
 242                                 pack1.temp=w;
 243                                 //pack.temp++;
 244                                 alarmflag=af;
 245                                 sei();
 246                                 EXTERN_SLEEP();
 247                 }
 248
 249
 250
 251 #if  defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__)  || defined(__AVR_ATtiny85__)
 252                         if (((TIMSK & (1<<TOIE0))==0)&& (mode==0))
 253 #endif
 254 #if  defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__)  || defined(__AVR_ATtiny84__) ||defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__)  || defined(__AVR_ATtiny84A__)
 255                         if (((TIMSK0 & (1<<TOIE0))==0)&& (mode==0))
 256 #endif
 257                           {
 258
 259                         MCUCR|=(1<<SE)|(1<<SM1);
 260                         MCUCR&=~(1<<ISC01);
 261                 } else {
 262                         MCUCR|=(1<<SE);
 263                         MCUCR&=~(1<<SM1);
 264                 }
 265                 //MCUCR&=~(1<<ISC01);
 266                 asm("SLEEP");
 267    }
 268
 269
 270 }