💬 Temperature Sensor

Rene046

i dont know how but i got it now running perfect, and cleaned up a bid.
for if anyone could use ....

// Enable debug prints to serial monitor
#define MY_DEBUG

// Enable and select radio type attached
#define MY_RADIO_NRF24
//#define MY_RADIO_RFM69

#include <SPI.h>
#include <MySensors.h>  
#include <BH1750.h>
#include <Wire.h>
#include <OneWire.h>
#include <DallasTemperature.h>

// Data wire is plugged into port 3 on the Arduino
#define ONE_WIRE_BUS 3

// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
OneWire oneWire(ONE_WIRE_BUS);

// Pass our oneWire reference to Dallas Temperature. 
DallasTemperature sensors(&oneWire);

// arrays to hold device address
DeviceAddress insideThermometer;

unsigned long SLEEP_TIME = 30000; // Sleep time between reads (in milliseconds)
int BATTERY_SENSE_PIN = A0;  // select the input pin for the battery sense point
int SOLAR_SENSE_PIN = A1;  // select the input pin for the solar sense point
#define CHILD_ID_BATTERY 4
#define CHILD_ID_SOLAR 6
#define CHILD_ID_LIGHT 1
#define CHILD_ID_TEMP1 2

BH1750 lightSensor;
float TempC = 50.5;
int oldBatteryPcnt = 0;
MyMessage msgTempC(CHILD_ID_TEMP1,V_TEMP);
MyMessage msgbatt(CHILD_ID_BATTERY, V_VOLTAGE);
MyMessage msgsolar(CHILD_ID_SOLAR, V_VOLTAGE);
MyMessage msg(CHILD_ID_LIGHT, V_LIGHT_LEVEL);
uint16_t lastlux;  //lux

void setup(void)
{
// use the 1.1 V internal reference
  #if defined(__AVR_ATmega2560__)
  analogReference(INTERNAL1V1);
  #else
  analogReference(INTERNAL);
  #endif
  
// Send the sketch version information to the gateway and Controller
  sendSketchInfo("Battery Meter", "2.0");
  present(CHILD_ID_LIGHT, S_LIGHT_LEVEL);
   
  sensors.begin(); // start reading sensor
  
  // search for devices on the bus and assign based on an index.  ideally,
  if (!sensors.getAddress(insideThermometer, 0)) Serial.println("Unable to find address for Device 0"); 
  
  // set the resolution to 9 bit (Each Dallas/Maxim device is capable of several different resolutions)
  //sensors.setResolution(insideThermometer, 9);
}

void loop(void)
{
  
 // get the battery Voltage
  int sensorValue2 = analogRead(BATTERY_SENSE_PIN);
  delay(1000);   
  
  int sensorValue1 = analogRead(BATTERY_SENSE_PIN);
  delay(100);
  
  int sensorValue = analogRead(BATTERY_SENSE_PIN);
  delay(1000);
    
  int sensorValueS = analogRead(SOLAR_SENSE_PIN);
  delay(1000);
 
#ifdef MY_DEBUG
  Serial.print("Battery Voltage2: ");
  Serial.println(sensorValue2);
  Serial.print("Battery Voltage1: ");
  Serial.println(sensorValue1);
  Serial.print("Battery Voltage: ");
  Serial.println(sensorValue);
  Serial.print("Solar Voltage: ");
  Serial.println(sensorValueS);
#endif

  // 1M, 470K divider across battery and using internal ADC ref of 1.1V
  // Sense point is bypassed with 0.1 uF cap to reduce noise at that point
  // ((1e6+470e3)/470e3)*1.1 = Vmax = 3.44 Volts
  // 3.44/1023 = Volts per bit = 0.003363075
  const float vRef = 4.200/ 1.05/ 1023 ;  
  int batteryPcnt = sensorValue / 10;
  float batteryV  = sensorValue * 0.0042598 ; // 0.0038952294568380753114792412093 max 4,2 volt
  float batteryS  = sensorValueS * 0.0102459 ; // 0.0038952294568380753114792412093 max 10 volt
  float TempC = sensors.getTempC(insideThermometer);

#ifdef MY_DEBUG
  Serial.print("DS1820 Temperature: ");
  Serial.print(TempC);
  Serial.println(" C");
send(msgTempC.set(TempC ,2));
  
  Serial.print("Battery Voltage: ");
  Serial.print(batteryV);
  Serial.println(" V");
send(msgbatt.set(batteryV ,2));

  Serial.print("Solar Voltage: ");
  Serial.print(batteryS);
  Serial.println(" V");
send(msgsolar.set(batteryS ,2));

  Serial.print("Battery percent: ");
  Serial.print(batteryPcnt);
  Serial.println(" %");
#endif

   if (oldBatteryPcnt != batteryPcnt) {
    // Power up radio after sleep
    sendBatteryLevel(batteryPcnt);
    oldBatteryPcnt = batteryPcnt;
  }
      
  uint16_t lux = lightSensor.readLightLevel();// Get Lux value
  Serial.println(lux);
  if (lux != lastlux) {
      send(msg.set(lux));
      lastlux = lux;
  }
  sleep(SLEEP_TIME);
}

CptSlow

Hi,

Can someone push me into the right direction.
I followed the "tutorial" and setup a Serial Gateway. This seems to be running just fine.

Now i want to add a node with a temperature sensor.

Both are using the NRF24L radio.

On my node i get an errors in the serial monitor.
What did i do wrong?

0 MCO:BGN:INIT NODE,CP=RNNNA--,VER=2.1.1
3 MCO:BGN:BFR
63 TSM:INIT
64 TSF:WUR:MS=0
71 !TSM:INIT:TSP FAIL
72 TSM:FAIL:CNT=1
74 TSM:FAIL:PDT
10077 TSM:FAIL:RE-INIT
10079 TSM:INIT
10085 !TSM:INIT:TSP FAIL
10088 TSM:FAIL:CNT=2
10089 TSM:FAIL:PDT

gohan

have you checked https://www.mysensors.org/build/debug ?

CptSlow

Hi Gohan,

I did not know that page. Thanks for the push :+1:

I think i have crappy radio tho, because i switched it with anotherone i have and it started working....
Thanks!

gohan

don't tell me about crappy nrf24... I got a bunch of really bad ones that work but only for 5 meters max.

skywatch

I just tried this today but get an error. Here's the output.....

Arduino: 1.8.3 (Windows 10), Board: "Arduino Pro or Pro Mini, ATmega328 (3.3V, 8 MHz)"

In file included from C:\Users\captain\Documents\Arduino\MYS-HW-CH\MYS-HW-CH.ino:37:0:

C:\Users\captain\Documents\Arduino\libraries\DallasTemperature/DallasTemperature.h: In function 'void loop()':

C:\Users\captain\Documents\Arduino\libraries\DallasTemperature/DallasTemperature.h:252:13: error: 'int16_t DallasTemperature::millisToWaitForConversion(uint8_t)' is private

 int16_t millisToWaitForConversion(uint8_t);

         ^

MYS-HW-CH:85: error: within this context

int16_t conversionTime = sensors.millisToWaitForConversion(sensors.getResolution());

exit status 1
within this context

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

THis is MYS 2.1.1 installed so a bit baffled as to what is causing the problem, it should just work, right?

Anyone with any insight please let me know! :)

mfalkvidd

@skywatch just follow the instructions on the build page:

This example uses a modified version of the external DTH library, which is included in the MySensors external examples. Please install it and restart the Arduino IDE before trying to compile.

skywatch

Thank you - that did it.

But it would be good to have that info in the file header too, just to call attention to it. Either that or a structured step-by-step tutorial so that things like this don't get left out.

At least it works now though, kul!

markjgabb

really silly question.....so does create multiple sensors? so i would have temp1 temp2 or does it combine the value of both for an averaged temprature?
the way i read it it would present mutiple sensors i think?

gohan

It creates the sensors that you present during the presentation.

markjgabb

appologies for the badly worded questions...the code in its example format....
am i reading it correctly that it presents sensors based on the variable for number of temp sensors?

gohan

It will present different sensros according to the #define MAX_ATTACHED_DS18B20 16

Digdogger

Hi,
I have only one sensor on the mini pro and I have this in the logs:
2017-07-30 14:41:28.492 (Mysensor) Temp (Congélateur)
2017-07-30 14:41:28.497 (Mysensor) Temp (Congélateur)
2017-07-30 14:41:28.501 (Mysensor) Temp (Congélateur)
2017-07-30 14:41:28.506 (Mysensor) Temp (Congélateur)
2017-07-30 14:41:28.510 (Mysensor) Temp (Congélateur)
2017-07-30 14:41:28.515 (Mysensor) Temp (Congélateur)
2017-07-30 14:41:28.521 (Mysensor) Temp (Congélateur)
2017-07-30 14:41:28.526 (Mysensor) Temp (Congélateur)

Sleep time is set to 60000ms, why the time between 2 messages is around 5ms???

mfalkvidd

@Digdogger it can depend on a lot of things. The best way to know is to look at the debug logs from the node and the gateway from the time when it happened. There could be a problem with the communication, with the radios, with the power supply, with the sketch, etc.

It could also be that you're using a microcontroller that doesn't support MySensors sleep, such as the esp8266. But it is just a guess. The information that's usually needed to troubleshoot is listed in https://forum.mysensors.org/topic/666/debug-faq-and-how-ask-for-help/

Digdogger

OK thanks mfalkvidd

ben999

Slightly off-topic here... but related to this particular sketch

If you look close enough (and copy-paste the sketch into your IDE) you'll witness that one curly-bracket is technically missing at the end of loop()...

But as I added it to the sketch I got error

Sketch compiles fine "with" the missing curly-bracket... ???

Any comment to that (in my sense) funny behavior ?

mfalkvidd

@ben999 the simple answer is probably that the backet isn't missing :)

Can you show why you think it is missing?

ben999

@mfalkvidd

I must have gone mad then :ghost:

Check the loop()
The last closing curly--bracket is for

for (int i=0; i<numSensors && i<MAX_ATTACHED_DS18B20; i++) {

So which one closes

void loop()     {

If i add one more to "make it right" then hell brakes loose...

sketch_jul31a:110: error: expected declaration before '}' token
 }
 ^
exit status 1
expected declaration before '}' token

1-That's the only sketch behaving this way
2-Even the "IDE-automatic-opening-bracket-finder" (shows which bracket is open when placing cursor on closing bracket) can NOT find the right bracket for loop()...

:scream:

mfalkvidd

Interesting observation @ben999

This is caused by the preprocessing directives.

#if COMPARE_TEMP == 1
    if (lastTemperature[i] != temperature && temperature != -127.00 && temperature != 85.00) {
#else
    if (temperature != -127.00 && temperature != 85.00) {
#endif

Only one of these if statements will be active. The Arduino IDE probably doesn't evaluate preprocessing directives, so it sees two if statements and therefore thinks it should see two end braces. A way to "fix" this could be to move the starting curly brace to after the preprocessing directives:

#if COMPARE_TEMP == 1
    if (lastTemperature[i] != temperature && temperature != -127.00 && temperature != 85.00)
#else
    if (temperature != -127.00 && temperature != 85.00)
#endif
    {

This allows the Arduino IDE to parse the code correctly, and correctly match the braces.

gohan

It's time to move to a better IDE 😁

💬 Temperature Sensor

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