problem with MAX31855

Development Boards Arduino
1

I have buy the SparkFun Thermocouple Breakout - MAX31855K https://www.sparkfun.com/products/13266

I have it connected to a nano board.

I have used the libary from sparkfun!

VCC on PIN 3V3

GND on GND

SCK on D13

SO on D12

CS on D10

The problem is that the temperature does not match any other temperature meters (calibrated)

and the measured temperature of the sample program is also very unstable.

measured value is 28 degrees, and read between the 24.5 to 45.5

What do i wrong??

(Sorry for my bad englisch)

2

Nobody who can help?

I’ve already added two diodes and resistors, see link for diagram

https://dl.dropboxusercontent.com/u/479 … 5%20v2.pdf

the measured temperature is still deviates

3

Hi! What type of conditions are you testing in? Which thermocouple are you using to test with?

4

photos of the setup:

https://dl.dropboxusercontent.com/u/479 … .44.27.jpg

https://dl.dropboxusercontent.com/u/479 … .44.41.jpg

5

Who has tips?

The temperature is still not stable, is between 18.5 and 22.0, while the sensor is in the water.

The reference thermomometer gives to 19.6.

This gives a stable value.

Please help!!