DS18B20_MAX44009_DS2438_SHT/DS18B20_DS2438.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/MAX44009.h"
  43 #include "../common/I2C/SHT2x.h"
  44
  45
  46 extern void OWINIT();
  47 extern void EXTERN_SLEEP();
  48
  49
  50 uint8_t owid1[8]={0x28, 0xA3, 0xD9, 0x84, 0x00, 0x16, 0x05, 0x18};/**/
  51 uint8_t owid2[8]={0x26, 0xA3, 0xD9, 0x84, 0x00, 0x16, 0x05, 0x67};/**/
  52 uint8_t config_info1[16]={0x03,0x04, 0x00,0x00, 0x00,0x00, 0x00,0x00, 0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
  53 uint8_t config_info2[16]={0x01,0x06, 0x05,0x08, 0x04,0x07, 0x00,0x00, 0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
  54
  55 #if (owid>128)
  56 #error "Variable not correct"
  57 #endif
  58
  59 extern uint8_t mode;
  60 extern uint8_t gcontrol;
  61 extern uint8_t reset_indicator;
  62 extern uint8_t alarmflag;
  63 volatile uint8_t wdcounter=5;
  64
  65
  66 #if  defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__)  || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__)  || defined(__AVR_ATtiny84A__)
  67 ISR(WATCHDOG_vect) {
  68 #else
  69 ISR(WDT_vect) {
  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 int testSW(void) {
  86         uint8_t r;
  87         DDRB&=~(1<<PORTB0);  //Eingang
  88         __asm__ __volatile__ ("nop");
  89         PORTB|=(1<<PORTB0); //Pullup
  90         __asm__ __volatile__ ("nop");
  91         __asm__ __volatile__ ("nop");
  92         __asm__ __volatile__ ("nop");
  93         __asm__ __volatile__ ("nop");
  94         __asm__ __volatile__ ("nop");
  95         r=PINB&(1<<PORTB0);
  96         __asm__ __volatile__ ("nop");
  97         PORTB&=~(1<<PORTB0);
  98         __asm__ __volatile__ ("nop");
  99         DDRB|=(1<<PORTB0);  //Eingang
 100         return (r==0);
 101
 102
 103 }
 104
 105
 106 typedef union {
 107         volatile uint8_t bytes[8];
 108         struct {
 109                 uint16_t temp;  //0
 110                 uint8_t TH;  //2
 111                 uint8_t TL;  //3
 112                 uint8_t config;  //4
 113                 uint8_t rrFF; //5
 114                 uint8_t rr00; //6
 115                 uint8_t rr10; //7
 116         };
 117 } pack1_t;
 118 volatile pack1_t pack1;
 119
 120
 121
 122 typedef union {
 123         #if  defined(__AVR_ATtiny25__)
 124         volatile uint8_t bytes[16];
 125         #else
 126         volatile uint8_t bytes[64];
 127         #endif
 128         struct {
 129                 uint8_t status;  //1
 130                 int16_t temp;  //2
 131                 uint16_t voltage;  //4
 132                 uint16_t current;  //6
 133                 uint8_t threshold; //8
 134
 135                 uint8_t page1[8]; //9
 136                 #if  defined(__AVR_ATtiny25__)
 137                 #else
 138                 uint8_t page2[8]; //17
 139                 uint8_t page3[8]; //25
 140                 uint8_t page4[8];  //33
 141                 uint8_t page5[8];  //41
 142                 uint8_t page6[8];  //49
 143                 uint8_t page7[8];  //57
 144                 //uint8_t crc;  //65
 145                 #endif
 146         };
 147 } pack2_t;
 148 volatile pack2_t pack2;
 149
 150
 151
 152
 153 volatile int16_t am2302_temp;
 154 volatile uint16_t am2302_hum;
 155
 156
 157 uint8_t userRegister[1];
 158 int16_t sRH,sT;
 159 volatile double temperatureC,humidityRH;
 160 volatile double l;
 161
 162 uint8_t max_adr=0;
 163
 164 int main(void){
 165     PRR|=(1<<PRADC);  // adc for save Power
 166         pack1.temp=0x0550;
 167         pack1.config=0x7F;
 168         pack1.TH=75;
 169         pack1.TL=70;
 170         pack1.rrFF=0xFF;
 171         pack1.rr00=0;
 172         pack1.rr10=0x10;
 173         PORTA=0xFF;
 174         PORTB=0xFF;
 175         OWINIT();
 176
 177         MCUCR &=~(1<<PUD); //All Pins Pullup...
 178         MCUCR |=(1<<BODS);
 179
 180         WDTCSR |= ((1<<WDCE) );   // Enable the WD Change Bit//| (1<<WDE)
 181         WDTCSR |=   (1<<WDIE) |              // Enable WDT Interrupt
 182         (1<<WDP3) | (1<<WDP0);   // Set Timeout to ~8 seconds
 183         if (testSW()) {
 184                 config_info2[5]=8;
 185                 }else{
 186                 config_info2[5]=7;
 187         }
 188         MCUSR=0;
 189         USI_TWI_Master_Initialise();
 190         if (checkMAX44009(0)) max_adr=0; else max_adr=1 ;
 191         SHT2x_SoftReset();
 192         SHT2x_ReadUserRegister(userRegister);
 193         //(userRegister & ~SHT2x_RES_MASK) | SHT2x_RES_10_13BIT;
 194         SHT2x_WriteUserRegister(userRegister); //write changed user reg
 195         // --- measure humidity with "Hold Master Mode (HM)" ---
 196         SHT2x_MeasurePoll(HUMIDITY, &sRH);
 197         // --- measure temperature with "Polling Mode" (no hold master) ---
 198         SHT2x_MeasurePoll(TEMP, &sT);
 199         //-- calculate humidity and temperature --
 200         //temperatureC = SHT2x_CalcTemperatureC(sT);
 201         //humidityRH = SHT2x_CalcRH(sRH);
 202
 203         gcontrol=1;
 204         sei();
 205         //DDRB|=(1<<PINB1);
 206     while(1)   {
 207                 if ((gcontrol==2)||(gcontrol==3)) {
 208                         wdcounter=3;
 209                         gcontrol=0;
 210
 211                 }
 212
 213                 if (wdcounter>2) {
 214                         //PORTB|=(1<<PINB1); //Dauer 440ms
 215                         SHT2x_MeasurePoll(HUMIDITY, &sRH);
 216                         // --- measure temperature with "Polling Mode" (no hold master) ---
 217                         SHT2x_MeasurePoll(TEMP, &sT);
 218                         //-- calculate humidity and temperature --
 219                         temperatureC = SHT2x_CalcTemperatureC(sT)*10.0-4;
 220                         humidityRH = SHT2x_CalcRH(sRH)*10.0+5;
 221                         if (humidityRH>1000) humidityRH=1000;
 222                         if (testSW()) {
 223                                 am2302_hum= humidityRH*10.0;
 224                                 am2302_temp=temperatureC*25.6;
 225                                 //
 226                                 config_info2[5]=8;
 227
 228                         }else{
 229
 230                                 double hhum=(1.0546-0.000216*temperatureC)*(humidityRH);
 231                                 //am2302_hum=0.318*hhum +76.0;
 232                                 am2302_hum=0.31*hhum +80;
 233                                 am2302_temp=temperatureC*25.6;
 234                                 //am2302_temp=am2302_temp-45;
 235                                 config_info2[5]=7;
 236                         }
 237                         wdcounter=0;
 238                 }
 239
 240                 if (gcontrol==1) {
 241                         gcontrol=0;
 242                         l=MAX44009getlux(max_adr);
 243                         if (l<0.030) l=0.030; //Darf nicht 0 sein. minimum -35°C Sensor minimum 0.045
 244                         //double l=1000;
 245                         l=log(l)*10*16;
 246                         uint16_t w=l;
 247                         uint8_t t8=w>>4;
 248                         uint8_t af=0;
 249                         if (t8>pack1.TH) af=1;
 250                         if (t8<=pack1.TL) af=1;
 251                         cli();
 252                         pack1.temp=w;
 253                         //pack.temp++;
 254                         alarmflag=af;
 255                         sei();
 256                         EXTERN_SLEEP();
 257                 }
 258
 259
 260
 261 #if  defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__)  || defined(__AVR_ATtiny85__)
 262                         if (((TIMSK & (1<<TOIE0))==0)&& (mode==0))
 263 #endif
 264 #if  defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__)  || defined(__AVR_ATtiny84__) ||defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__)  || defined(__AVR_ATtiny84A__)
 265                         if (((TIMSK0 & (1<<TOIE0))==0)&& (mode==0))
 266 #endif
 267                           {
 268
 269                         MCUCR|=(1<<SE)|(1<<SM1);
 270                         MCUCR&=~(1<<ISC01);
 271                 } else {
 272                         MCUCR|=(1<<SE);
 273                         MCUCR&=~(1<<SM1);
 274                 }
 275                 asm("SLEEP");
 276    }
 277
 278
 279 }