Hi to all,
I made a thermometer with PIC16F876A @ 4 MHz ,with MAX6675 sensor for thermocouple of K-type.I used a code from this forum to "read" the sensor with SPI comunication.But I have problems with the temperature.The temperature is so jumping,isn't showing the write temperature,but in home ambient room temperature(22 degrees celzius).The result is from 0-5 degrees.It shows a wrong temperature,I said,the difference is +5 degrees.
Here are some picures of my thermometer with thermostat that I made:
http://pic.mk/images/svbKM.jpg
http://pic.mk/images/Xq53R.jpg
http://pic.mk/images/v1wsX.jpg