451 lines
11 KiB
C++
Executable File
451 lines
11 KiB
C++
Executable File
/*
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* connectingStuff, Oregon Scientific v2.1 Emitter
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* http://connectingstuff.net/blog/encodage-protocoles-oregon-scientific-sur-arduino
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* and
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* http://blog.idleman.fr/raspberry-pi-18-construire-une-sonde-de-temperature-radio-pour-7e/
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <OneWire.h>
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#include <DallasTemperature.h>
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#include <avr/sleep.h>
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#include <avr/power.h> // Power management
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#include <avr/wdt.h>
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#define THN132N
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const byte TEMPERATURE_1_PIN = 3; //A5;
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const byte LUMINOSITE_PIN=A1;
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const byte TRANSMITTER_PIN = 9;
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const byte LED_PIN = 13;
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//#define DEBUG TRUE
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// On crée une instance de la classe oneWire pour communiquer avec le materiel on wire (dont le capteur ds18b20)
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OneWire oneWire(TEMPERATURE_1_PIN);
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//On passe la reference onewire à la classe DallasTemperature qui vas nous permettre de relever la temperature simplement
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DallasTemperature sensors(&oneWire);
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const unsigned long TIME = 512;
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const unsigned long TWOTIME = TIME*2;
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#define SEND_HIGH() digitalWrite(TRANSMITTER_PIN, HIGH)
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#define SEND_LOW() digitalWrite(TRANSMITTER_PIN, LOW)
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// Buffer for Oregon message
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#ifdef THN132N
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byte OregonMessageBuffer[8];
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#else
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byte OregonMessageBuffer[9];
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#endif
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/**
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* \brief Send logical "0" over RF
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* \details azero bit be represented by an off-to-on transition
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* \ of the RF signal at the middle of a clock period.
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* \ Remenber, the Oregon v2.1 protocol add an inverted bit first
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*/
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inline void sendZero(void)
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{
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SEND_HIGH();
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delayMicroseconds(TIME);
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SEND_LOW();
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delayMicroseconds(TWOTIME);
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SEND_HIGH();
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delayMicroseconds(TIME);
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}
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/**
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* \brief Send logical "1" over RF
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* \details a one bit be represented by an on-to-off transition
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* \ of the RF signal at the middle of a clock period.
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* \ Remenber, the Oregon v2.1 protocol add an inverted bit first
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*/
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inline void sendOne(void)
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{
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SEND_LOW();
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delayMicroseconds(TIME);
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SEND_HIGH();
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delayMicroseconds(TWOTIME);
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SEND_LOW();
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delayMicroseconds(TIME);
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}
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/**
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* Send a bits quarter (4 bits = MSB from 8 bits value) over RF
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*
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* @param data Source data to process and sent
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*/
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/**
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* \brief Send a bits quarter (4 bits = MSB from 8 bits value) over RF
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* \param data Data to send
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*/
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inline void sendQuarterMSB(const byte data)
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{
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(bitRead(data, 4)) ? sendOne() : sendZero();
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(bitRead(data, 5)) ? sendOne() : sendZero();
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(bitRead(data, 6)) ? sendOne() : sendZero();
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(bitRead(data, 7)) ? sendOne() : sendZero();
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}
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/**
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* \brief Send a bits quarter (4 bits = LSB from 8 bits value) over RF
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* \param data Data to send
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*/
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inline void sendQuarterLSB(const byte data)
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{
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(bitRead(data, 0)) ? sendOne() : sendZero();
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(bitRead(data, 1)) ? sendOne() : sendZero();
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(bitRead(data, 2)) ? sendOne() : sendZero();
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(bitRead(data, 3)) ? sendOne() : sendZero();
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}
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/******************************************************************/
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/******************************************************************/
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/******************************************************************/
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/**
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* \brief Send a buffer over RF
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* \param data Data to send
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* \param size size of data to send
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*/
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void sendData(byte *data, byte size)
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{
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for(byte i = 0; i < size; ++i)
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{
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sendQuarterLSB(data[i]);
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sendQuarterMSB(data[i]);
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}
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}
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/**
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* \brief Send an Oregon message
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* \param data The Oregon message
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*/
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void sendOregon(byte *data, byte size)
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{
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sendPreamble();
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//sendSync();
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sendData(data, size);
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sendPostamble();
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}
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/**
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* \brief Send preamble
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* \details The preamble consists of 16 "1" bits
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*/
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inline void sendPreamble(void)
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{
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byte PREAMBLE[]={0xFF,0xFF};
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sendData(PREAMBLE, 2);
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}
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/**
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* \brief Send postamble
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* \details The postamble consists of 8 "0" bits
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*/
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inline void sendPostamble(void)
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{
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#ifdef THN132N
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sendQuarterLSB(0x00);
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#else
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byte POSTAMBLE[]={0x00};
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sendData(POSTAMBLE, 1);
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#endif
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}
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/**
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* \brief Send sync nibble
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* \details The sync is 0xA. It is not use in this version since the sync nibble
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* \ is include in the Oregon message to send.
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*/
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inline void sendSync(void)
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{
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sendQuarterLSB(0xA);
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}
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/******************************************************************/
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/******************************************************************/
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/******************************************************************/
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/**
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* \brief Set the sensor type
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* \param data Oregon message
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* \param type Sensor type
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*/
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inline void setType(byte *data, byte* type)
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{
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data[0] = type[0];
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data[1] = type[1];
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}
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/**
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* \brief Set the sensor channel
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* \param data Oregon message
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* \param channel Sensor channel (0x10, 0x20, 0x30)
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*/
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inline void setChannel(byte *data, byte channel)
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{
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data[2] = channel;
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}
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/**
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* \brief Set the sensor ID
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* \param data Oregon message
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* \param ID Sensor unique ID
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*/
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inline void setId(byte *data, byte ID)
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{
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data[3] = ID;
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}
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/**
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* \brief Set the sensor battery level
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* \param data Oregon message
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* \param level Battery level (0 = low, 1 = high)
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*/
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void setBatteryLevel(byte *data, byte level)
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{
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if(!level) data[4] = 0x0C;
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else data[4] = 0x00;
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}
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/**
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* \brief Set the sensor temperature
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* \param data Oregon message
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* \param temp the temperature
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*/
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void setTemperature(byte *data, float temp)
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{
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// Set temperature sign
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if(temp < 0)
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{
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data[6] = 0x08;
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temp *= -1;
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}
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else
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{
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data[6] = 0x00;
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}
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// Determine decimal and float part
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int tempInt = (int)temp;
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int td = (int)(tempInt / 10);
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int tf = (int)round((float)((float)tempInt/10 - (float)td) * 10);
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int tempFloat = (int)round((float)(temp - (float)tempInt) * 10);
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// Set temperature decimal part
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data[5] = (td << 4);
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data[5] |= tf;
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// Set temperature float part
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data[4] |= (tempFloat << 4);
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}
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/**
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* \brief Set the sensor humidity
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* \param data Oregon message
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* \param hum the humidity
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*/
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void setHumidity(byte* data, byte hum)
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{
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data[7] = (hum/10);
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data[6] |= (hum - data[7]*10) << 4;
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#ifdef DEBUG
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Serial.print("Hum=" + hum);
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#endif
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}
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/**
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* \brief Sum data for checksum
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* \param count number of bit to sum
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* \param data Oregon message
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*/
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int Sum(byte count, const byte* data)
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{
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int s = 0;
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for(byte i = 0; i<count;i++)
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{
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s += (data[i]&0xF0) >> 4;
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s += (data[i]&0xF);
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}
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if(int(count) != count)
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s += (data[count]&0xF0) >> 4;
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return s;
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}
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/**
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* \brief Calculate checksum
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* \param data Oregon message
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*/
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void calculateAndSetChecksum(byte* data)
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{
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#ifdef THN132N
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int s = ((Sum(6, data) + (data[6]&0xF) - 0xa) & 0xff);
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data[6] |= (s&0x0F) << 4; data[7] = (s&0xF0) >> 4;
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#else
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data[8] = ((Sum(8, data) - 0xa) & 0xFF);
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#endif
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}
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/******************************************************************/
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/******************************************************************/
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/******************************************************************/
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void setup()
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{
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DDRB = 0b000001; // all but PB0 INPUT, want to use PB0 ...
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PORTB = 0b000000; // all LOW
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pinMode(TRANSMITTER_PIN, OUTPUT);
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pinMode(LED_PIN, OUTPUT);
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#ifdef DEBUG
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Serial.begin(115200);
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Serial.println("\n[Oregon V2.1 encoder]");
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#endif
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SEND_LOW();
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//On initialise le capteur de temperature
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sensors.begin();
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#ifdef THN132N
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// Create the Oregon message for a temperature only sensor (TNHN132N)
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byte ID[] = {0xEA,0x4C};
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#ifdef DEBUG
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Serial.println("Def THN132");
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#endif
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#else
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// Create the Oregon message for a temperature/humidity sensor (THGR2228N)
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byte ID[] = {0x1A,0x2D};
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#ifdef DEBUG
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Serial.println("UnDef THN132");
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#endif
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#endif
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setType(OregonMessageBuffer, ID);
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setChannel(OregonMessageBuffer, 0x20);
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// ATMEGA 1 = BC
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// TEST OREGON BB
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// TEST Luminosite BD
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setId(OregonMessageBuffer, 0xBC); // ID BB BC BD
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delay(1000);
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}
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void loop()
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{
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digitalWrite(LED_PIN, HIGH);
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digitalWrite(LED_PIN, LOW);
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// if (currentVcc > 5000) {
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// currentVcc = 5000;
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// }
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#ifdef DEBUG
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Serial.println(currentVcc);
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#endif
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// Get Temperature, humidity and battery level from sensors
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// (ie: 1wire DS18B20 for température, ...)
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// if (currentVcc < 3000) {
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// setBatteryLevel(OregonMessageBuffer, 0); // 0 : low, 1 : high
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// } else {
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// setBatteryLevel(OregonMessageBuffer, 1); // 0 : low, 1 : high
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// }
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setBatteryLevel(OregonMessageBuffer, 1);
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// need addaptation here
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// Ajout perso
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//Lancement de la commande de récuperation de la temperature
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sensors.requestTemperatures();
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//Serial.println(sensors.getTempCByIndex(0));
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//if (LUMINOSITE_PIN != 0) {
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//setTemperature(OregonMessageBuffer,analogRead(LUMINOSITE_PIN));
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//} else {
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setTemperature(OregonMessageBuffer,sensors.getTempCByIndex(0));
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//}
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// setTemperature(OregonMessageBuffer, 11.2);
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#ifndef THN132N
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// Set Humidity
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setHumidity(OregonMessageBuffer, 52);
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#endif
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// Calculate the checksum
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calculateAndSetChecksum(OregonMessageBuffer);
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// Show the Oregon Message
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#ifdef DEBUG
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for (byte i = 0; i < sizeof(OregonMessageBuffer); ++i) {
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Serial.print(OregonMessageBuffer[i] >> 4, HEX);
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Serial.print(OregonMessageBuffer[i] & 0x0F, HEX);
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}
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Serial.println("");
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#endif
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// Send the Message over RF
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sendOregon(OregonMessageBuffer, sizeof(OregonMessageBuffer));
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// Send a "pause"
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SEND_LOW();
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delayMicroseconds(TWOTIME*8);
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// Send a copie of the first message. The v2.1 protocol send the
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// message two time
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sendOregon(OregonMessageBuffer, sizeof(OregonMessageBuffer));
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delay(1000);
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// Wait for 30 seconds before send a new message
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SEND_LOW();
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//delay(3000);
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// disable ADC
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//ADCSRA = 0;
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// sleep for a total of 64 seconds (8 x 8)
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for (int i = 0; i < 8; i++) {
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sleepNow();
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}
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}
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void sleepNow() {
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{
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// BODCR |= (1<<BODS)|(1<<BODSE); //Disable Brown Out Detector Control Register
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ACSR |= (1<<ACD); //Analog comparator off
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ACSR = ADMUX = ADCSRA = 0;
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}
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WDTCR |= (1<<WDP3) ; //Watchdog set for about 4 seconds
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// Enable watchdog timer interrupts
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WDTCR |= (1<<WDTIE);
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sei(); // Enable global interrupts
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set_sleep_mode(SLEEP_MODE_PWR_DOWN);
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sleep_mode();
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sleep_disable();
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}
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