The uncalibrated accuracy on the MAX31855 should around +-2degC. The repeatability should be
a bit better. When I did a quick test nn my new board I was getting +-2degC and a repeatability
of around +-0.25degC. I will doing some tests over the next few weeks.
I added two channels to the board and some terminal blocks for ADC channels, I2C and SPI
ports. I also added a 5V boost converter.
I will have the schematic and documentation done in the next few weeks.
Preliminary information is at http://tinyurl.com/3vuatby
(* jcl *)
Are we close to a breakout board for the Arduino yet? I've been looking at the MAX31855 as well since I need a J type thermocouple connection.
Would I be able to connect a Logic Level converter http://www.sparkfun.com/products/8745
to the Adafruit's MAX6675 breakout board (https://www.adafruit.com/products/269
) in order to use the 3.3V MAX 31855?