am using DS18B20 with a ph module that I bought, following the tutorials like this one I understand that I can make the DS18B20 works by attaching 4.7 kohm resistor as explained in this tutorial:
however, I don't want to do that, instead I want to use the feature of my ph module to measure the temprature:
this is my simple circut:
I am using DS18B20 with a ph module that I bought, following the tutorials like this one I understand that I can make the DS18B20 works by attaching 4.7 kohm resistor as explained in this tutorial:
enter image description here
however, I don't want to do that, instead I want to use the feature of my ph module to measure the temprature:
this is my simple circut:
enter image description here
Its not clear but its simply connection the GND, VCC and the signal from the temprature sensor. afte that the ph module has a temprature output that goes to the arduino.
here is the closes picture I can find for my module on the internet, its not the same but the closeset:
I am using DS18B20 with a ph module that I bought, following the tutorials like this one I understand that I can make the DS18B20 works by attaching 4.7 kohm resistor as explained in this tutorial:
enter image description here
however, I don't want to do that, instead I want to use the feature of my ph module to measure the temprature:
this is my simple circut:
enter image description here
Its not clear but its simply connection the GND, VCC and the signal from the temprature sensor. afte that the ph module has a temprature output that goes to the arduino.
here is the closes picture I can find for my module on the internet, its not the same but the closeset:
enter image description here
for the code I used the onewire library and dallas temprature as follows:
#include <OneWire.h>
#include <DallasTemperature.h>
// Data wire is plugged into pin 2 on the Arduino
#define ONE_WIRE_BUS 2
// 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);
void setup(void)
{
// start serial port
Serial.begin(9600);
Serial.println("Dallas Temperature IC Control Library Demo");
// Start up the library
sensors.begin();
}
void loop(void)
{
// call sensors.requestTemperatures() to issue a global temperature
// request to all devices on the bus
Serial.print(" Requesting temperatures...");
sensors.requestTemperatures(); // Send the command to get temperatures
Serial.println("DONE");
Serial.print("Temperature for Device 1 is: ");
Serial.print(sensors.getTempCByIndex(0)); // Why "byIndex"?
// You can have more than one IC on the same bus.
// 0 refers to the first IC on the wire
}
my output is always -127 Celsius.
my question is, is this ph module works that same way(does it have the internal 4.7Kohm ), what am I missing out
thanks
