--- /dev/null
+
+// Copyright (c) 2015, Tobias Mueller tm(at)tm3d.de
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the
+// distribution.
+// * All advertising materials mentioning features or use of this
+// software must display the following acknowledgement: This product
+// includes software developed by tm3d.de and its contributors.
+// * Neither the name of tm3d.de nor the names of its contributors may
+// be used to endorse or promote products derived from this software
+// without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#define F_CPU 8000000UL
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include <avr/wdt.h>
+#include <avr/sleep.h>
+#include <avr/pgmspace.h>
+#include "../common/I2C/USI_TWI_Master.h"
+#include "../common/I2C/SHT2x.h"
+#include "../common/I2C/BMP280.h"
+
+
+extern void OWINIT();
+
+
+
+uint8_t owid1[8]={0x28, 0xA3, 0xD9, 0x84, 0x00, 0x16, 0x05, 0x18};/**/
+uint8_t owid2[8]={0x26, 0xA3, 0xD9, 0x84, 0x00, 0x16, 0x05, 0x67};/**/
+uint8_t config_info1[16]={0x02,0x03, 0x00,0x00, 0x00,0x00, 0x00,0x00, 0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+uint8_t config_info2[16]={0x01,0x06, 0x05,0x08, 0x04,0x07, 0x00,0x00, 0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+
+#if (owid>128)
+#error "Variable not correct"
+#endif
+
+extern uint8_t mode;
+extern uint8_t gcontrol;
+extern uint8_t reset_indicator;
+extern uint8_t alarmflag;
+volatile uint8_t wdcounter;
+
+
+#if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)
+ISR(WATCHDOG_vect) {
+#else
+ISR(WDT_vect) {
+#endif
+ //sleep_disable(); // Disable Sleep on Wakeup
+ wdcounter++;
+ if (reset_indicator==1) reset_indicator++;
+ else if (reset_indicator==2) mode=0;
+/* if (timeout==2) {
+ DIS_TIMER;
+ EN_OWINT;
+ mode=OWM_SLEEP;
+ }
+ timeout++;*/
+ //sleep_enable(); // Enable Sleep Mode
+
+}
+
+
+typedef union {
+ volatile uint8_t bytes[8];
+ struct {
+ uint16_t temp; //0
+ uint8_t TH; //2
+ uint8_t TL; //3
+ uint8_t config; //4
+ uint8_t rrFF; //5
+ uint8_t rr00; //6
+ uint8_t rr10; //7
+ };
+} pack1_t;
+volatile pack1_t pack1;
+
+
+
+typedef union {
+ #if defined(__AVR_ATtiny25__)
+ volatile uint8_t bytes[16];
+ #else
+ volatile uint8_t bytes[64];
+ #endif
+ struct {
+ uint8_t status; //1
+ int16_t temp; //2
+ uint16_t voltage; //4
+ uint16_t current; //6
+ uint8_t threshold; //8
+
+ uint8_t page1[8]; //9
+ #if defined(__AVR_ATtiny25__)
+ #else
+ uint8_t page2[8]; //17
+ uint8_t page3[8]; //25
+ uint8_t page4[8]; //33
+ uint8_t page5[8]; //41
+ uint8_t page6[8]; //49
+ uint8_t page7[8]; //57
+ //uint8_t crc; //65
+ #endif
+ };
+} pack2_t;
+volatile pack2_t pack2;
+
+
+
+
+volatile int16_t am2302_temp;
+volatile uint16_t am2302_hum;
+
+
+uint8_t userRegister[1];
+int16_t sRH,sT;
+volatile double temperatureC,humidityRH;
+volatile double l;
+ uint32_t P;
+ int32_t t;
+
+int main(void){
+ PRR|=(1<<PRADC); // adc for save Power
+ pack1.temp=0x0550;
+ pack1.config=0x7F;
+ pack1.TH=75;
+ pack1.TL=70;
+ pack1.rrFF=0xFF;
+ pack1.rr00=0;
+ pack1.rr10=0x10;
+ PORTA=0xFF;
+ PORTB=0xFF;
+ OWINIT();
+
+ MCUCR &=~(1<<PUD); //All Pins Pullup...
+ MCUCR |=(1<<BODS);
+
+ WDTCSR |= ((1<<WDCE) ); // Enable the WD Change Bit//| (1<<WDE)
+ WDTCSR |= (1<<WDIE) | // Enable WDT Interrupt
+ (1<<WDP2) | (1<<WDP1); // Set Timeout to ~1 seconds
+
+ MCUSR=0;
+ USI_TWI_Master_Initialise();
+ bmp280Init();
+ SHT2x_SoftReset();
+ SHT2x_ReadUserRegister(userRegister);
+ //(userRegister & ~SHT2x_RES_MASK) | SHT2x_RES_10_13BIT;
+ SHT2x_WriteUserRegister(userRegister); //write changed user reg
+ // --- measure humidity with "Hold Master Mode (HM)" ---
+ SHT2x_MeasurePoll(HUMIDITY, &sRH);
+ // --- measure temperature with "Polling Mode" (no hold master) ---
+ SHT2x_MeasurePoll(TEMP, &sT);
+ //-- calculate humidity and temperature --
+ temperatureC = SHT2x_CalcTemperatureC(sT);
+ humidityRH = SHT2x_CalcRH(sRH);
+
+ gcontrol=1;
+ sei();
+ while(1) {
+ if (wdcounter>0) {
+ SHT2x_MeasurePoll(HUMIDITY, &sRH);
+ // --- measure temperature with "Polling Mode" (no hold master) ---
+ SHT2x_MeasurePoll(TEMP, &sT);
+ //-- calculate humidity and temperature --
+ temperatureC = SHT2x_CalcTemperatureC(sT)*10.0;
+ humidityRH = SHT2x_CalcRH(sRH)*10.0;
+ double hhum=(1.0546-0.000216*temperatureC)*(humidityRH);
+ am2302_hum=0.318*hhum +76.0;
+ am2302_temp=temperatureC*25.6;
+ wdcounter=0;
+ }
+
+ if (gcontrol==1) {
+
+ bmp280ConvertInt(&t,&P,1);
+ P=P-70000;
+ P=P/20;
+ uint16_t w=P;
+ uint8_t t8=w>>4;
+ uint8_t af=0;
+ if (t8>pack1.TH) af=1;
+ if (t8<=pack1.TL) af=1;
+ cli();
+ pack1.temp=w;
+ //pack.temp++;
+ alarmflag=af;
+ sei();
+ gcontrol=0;
+ }
+ if ((gcontrol==2)||(gcontrol==3)) {
+ gcontrol=0;
+
+ }
+
+
+#if defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
+ if (((TIMSK & (1<<TOIE0))==0)&& (mode==0))
+#endif
+#if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) ||defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)
+ if (((TIMSK0 & (1<<TOIE0))==0)&& (mode==0))
+#endif
+ {
+
+ MCUCR|=(1<<SE)|(1<<SM1);
+ MCUCR&=~(1<<ISC01);
+ } else {
+ MCUCR|=(1<<SE);
+ MCUCR&=~(1<<SM1);
+ }
+ //MCUCR&=~(1<<ISC01);
+ asm("SLEEP");
+ }
+
+
+}
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