Automated Reptile Control System(webserver, Data Logging, RTC and much more)

Hi,

No humidity sensor attached so far, just checking if all relays can be controlled in manual mode
but for unknown reason humidifier does not turn off in manual mode.
Any ideas ?

thanks!

ps. Talking about RTC, which pin SCL and SDA is connected on the arduino board please ?

On a standard Uno it is SDA to A4 and SCL to A5. Note that it is pins 20, 21 on a Mega. Most Megas have this marked on the board.

mkcinek:
Hi,

No humidity sensor attached so far, just checking if all relays can be controlled in manual mode
but for unknown reason humidifier does not turn off in manual mode.
Any ideas ?

thanks!

sorry for not responding sooner, been really busy.

to answer your question, i had the same issue. i know i fixed it, and if i recall there is a typo in the version of code i posted. when i get home tonight i will post the latest. that WILL fix that issue. :grin:

mkcinek:
ps. Talking about RTC, which pin SCL and SDA is connected on the arduino board please ?

i have the RTC connected to pins 20 and 21 on the MEGA

i would also like to update that the random system reboots and freezes have been fixed. now that i have removed the string class the system is stable. i also removed some code that had the unit auto-update its time every 24 hours. without that, you can still get the correct time by manually initiating a time update. the system has now been going for 25 days while logging data without issues.

latest code:

https://www.dropbox.com/s/s1tdkgo04rtc6cj/Arduino_3-29-13.rar

hi,

thanks - manual moisture control works now.

I have encountered another issue, when trying to connect with smartphone, arduino freezes - orange led starts blinking and no response...
Is there a way to use mobile devices with your control system?

Thanks!

ps. what rtc module do you use ? I do not know why but I just can not start mine - it is Tiny RTC I2C module...
thanks!

Really appreciate your help and response!!!

I have five of those, they cost a couple of dollars each, and they all work fine. I have heard that they must have a battery installed to work. I don't understand why, but somebody recently had a dud battery and that was apparently the problem.

Thanks, I will test the battery ( perhaps I will buy another RTC)

Would you have an idea when trying to connect with smartphone, arduino freezes - orange led starts blinking and no response...
Is there a way to use mobile devices with your control system?

No idea, I don't have a smart phone. My involvement is more about feeds to the internet and the only mobile device is a laptop getting the same data feed via bluetooth.

Nick_Pyner:
No idea, I don't have a smart phone. My involvement is more about feeds to the internet and the only mobile device is a laptop getting the same data feed via bluetooth.

thanks for fast reply!

I wonder if there is anybody who has tried to connect to this sketch with a smartphone ?

Thanks !

mkcinek:
hi,

thanks - manual moisture control works now.

I have encountered another issue, when trying to connect with smartphone, arduino freezes - orange led starts blinking and no response...
Is there a way to use mobile devices with your control system?

Thanks!

i have experienced this as well when using the stock android browser. i have to use Mobile Fire Fox browser and i have no issues when using my smart phone. i have not determined what the cause of this behavior is. Just use fire fox mobile and you should not have any problems. there must be some issue with how the stock andriod browser behaves that keep the sketch in an infinite loop within the client connected code.

mkcinek:
Thanks, I will test the battery ( perhaps I will buy another RTC)

Would you have an idea when trying to connect with smartphone, arduino freezes - orange led starts blinking and no response...
Is there a way to use mobile devices with your control system?

the battery is required to keep the RTC module's time going when no external power is applied. otherwise the clock resets to zero.

mkcinek:
ps. what rtc module do you use ? I do not know why but I just can not start mine - it is Tiny RTC I2C module...
thanks!

Really appreciate your help and response!!!

i just did a search on amazon for RTC modules.

hi, any idea why I am only getting Middle Ground temp reading although Cold and Middle sensors connected.
Two one wire sensors with 4,7k resistors on each.

thanks!

You only need one 4k7 but I don't know if this is the cause of your problem.

mkcinek:
hi, any idea why I am only getting Middle Ground temp reading although Cold and Middle sensors connected.
Two one wire sensors with 4,7k resistors on each.

thanks!

i honestly do not know. i myself have one 4.7k resistor per sensor as well since each data line goes to its own dedicated I/O pin. do you have the sensors connected to the correct pin? have you tried to make sure the sensors that are not working, work correctly when connected to the I/O pin of one that does?

wallaceb:

mkcinek:
hi, any idea why I am only getting Middle Ground temp reading although Cold and Middle sensors connected.
Two one wire sensors with 4,7k resistors on each.

thanks!

i honestly do not know. i myself have one 4.7k resistor per sensor as well since each data line goes to its own dedicated I/O pin. do you have the sensors connected to the correct pin? have you tried to make sure the sensors that are not working, work correctly when connected to the I/O pin of one that does?

As far as I know one wire sensors are attached to 22,24,26, 28,30 pins.
Only getting Middle Ground readings, however after switching from Celsius to Fahrenheit I can get readings wherever sensor is connected, do you work on F or C?
thanks!!!

i keep mine in F the entire time. i just checked, and it is doing the same thing on my system when set to C.... i will have to look into what is going on.

found the issue

change the current code:

void CONVERT_TEMP(byte Sensor_PIN, byte & temp_whole, byte & temp_fract, byte & temp_status) {
  OneWire  dSensor1(Sensor_PIN); 
  byte i;
  byte present = 0;
  byte data[12];
  byte addr[8];
  int HighByte, LowByte, TReading, SignBit, Tc_100;
  
  
  if ( !dSensor1.search(addr)) {
    dSensor1.reset_search();
    delay(250);
    temp_whole = 0;
    temp_fract = 0;
    temp_status = 0;
    badsensorcount ++;
    return;
  }

  if ( OneWire::crc8( addr, 7) != addr[7]) {
      temp_whole = 0;
    temp_fract = 0;
    temp_status = 0;
    badsensorcount ++;
    return;
  }

  // The DallasTemperature library can do all this work for you!

  dSensor1.reset();
  dSensor1.select(addr);
  dSensor1.write(0x44,0);         // start conversion, without parasite power on at the end
  
  delay(1000);     // maybe 750ms is enough, maybe not
  // we might do a dSensor1.depower() here, but the reset will take care of it.
  
  present = dSensor1.reset();
  dSensor1.select(addr);    
  dSensor1.write(0xBE);         // Read Scratchpad

  for ( i = 0; i < 9; i++) {           // we need 9 bytes
    data[i] = dSensor1.read();
  }

  LowByte = data[0];
  HighByte = data[1];
  TReading = (HighByte << 8) + LowByte;
  SignBit = TReading & 0x8000;  // test most sig bit
  if (SignBit) // negative
  {
    TReading = (TReading ^ 0xffff) + 1; // 2's comp
  }
  Tc_100 = (6 * TReading) + TReading / 4;    // multiply by (100 * 0.0625) or 6.25
  
  if (temp_scale == 1){//if using degrees F, the celcius reading from the sensor must be converted
     temp_whole = (int)(((Tc_100)*(1.8))+3200)/100;
     temp_fract = (int)(((Tc_100)*(1.8))+3200)%100;
     if (temp_whole > 32){
       temp_status = 1;//if the temperature is above 32 degrees F, then the sensor is OK
     }else{
       temp_status = 0;//the sensor must be bad as the temperature must never get down as low as 32 degrees F, the snake would die!!
     }
   }else{//if using degrees C, the temp reading is good as is.
     middle_temp_whole = Tc_100/100;
     middle_temp_fract = Tc_100%100;
     if (temp_whole > 0){
       temp_status = 1;//if the temperature is above 0 degrees C, then the sensor is OK
     }else{
       temp_status = 0;//the sensor must be bad as the temperature must never get down as low as 0 degrees C
     }
   }
}

to

void CONVERT_TEMP(byte Sensor_PIN, byte & temp_whole, byte & temp_fract, byte & temp_status) {
  OneWire  dSensor1(Sensor_PIN); 
  byte i;
  byte present = 0;
  byte data[12];
  byte addr[8];
  int HighByte, LowByte, TReading, SignBit, Tc_100;
  
  
  if ( !dSensor1.search(addr)) {
    dSensor1.reset_search();
    delay(250);
    temp_whole = 0;
    temp_fract = 0;
    temp_status = 0;
    badsensorcount ++;
    return;
  }

  if ( OneWire::crc8( addr, 7) != addr[7]) {
      temp_whole = 0;
    temp_fract = 0;
    temp_status = 0;
    badsensorcount ++;
    return;
  }

  // The DallasTemperature library can do all this work for you!

  dSensor1.reset();
  dSensor1.select(addr);
  dSensor1.write(0x44,0);         // start conversion, without parasite power on at the end
  
  delay(1000);     // maybe 750ms is enough, maybe not
  // we might do a dSensor1.depower() here, but the reset will take care of it.
  
  present = dSensor1.reset();
  dSensor1.select(addr);    
  dSensor1.write(0xBE);         // Read Scratchpad

  for ( i = 0; i < 9; i++) {           // we need 9 bytes
    data[i] = dSensor1.read();
  }

  LowByte = data[0];
  HighByte = data[1];
  TReading = (HighByte << 8) + LowByte;
  SignBit = TReading & 0x8000;  // test most sig bit
  if (SignBit) // negative
  {
    TReading = (TReading ^ 0xffff) + 1; // 2's comp
  }
  Tc_100 = (6 * TReading) + TReading / 4;    // multiply by (100 * 0.0625) or 6.25
  
  if (temp_scale == 1){//if using degrees F, the celcius reading from the sensor must be converted
     temp_whole = (int)(((Tc_100)*(1.8))+3200)/100;
     temp_fract = (int)(((Tc_100)*(1.8))+3200)%100;
     if (temp_whole > 32){
       temp_status = 1;//if the temperature is above 32 degrees F, then the sensor is OK
     }else{
       temp_status = 0;//the sensor must be bad as the temperature must never get down as low as 32 degrees F, the snake would die!!
     }
   }else{//if using degrees C, the temp reading is good as is.
     temp_whole = Tc_100/100;
     temp_fract = Tc_100%100;
     if (temp_whole > 0){
       temp_status = 1;//if the temperature is above 0 degrees C, then the sensor is OK
     }else{
       temp_status = 0;//the sensor must be bad as the temperature must never get down as low as 0 degrees C
     }
   }
}

i realized i never put up pictures of my entire final setup

It looks great, everything is organized as it should be - but where is the snake :wink: ?

Have you update your code recently ?