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Thermocouple Amplifier MAX31855 breakout board (MAX6675 upgrade) - v2.0

SKU: ADA269

$25.00 AUD, inc GST
$22.73 AUD, exc GST

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Thermocouple Amplifier MAX31855 breakout board (MAX6675 upgrade) - v2.0
25 AUD

SKU: ADA269

$25.00 AUD, inc GST
$22.73 AUD, exc GST
2 reviews 0 5 4.5
In stock, ships today if ordered before 2PM
Delivered by Fri, 25th of Aug
Shipping Offer

Thermocouples are very sensitive, requiring a good amplifier with a cold-compensation reference. The MAX31855K does everything for you, and can be easily interfaced with any microcontroller, even one without an analog input. This breakout board has the chip itself, a 3.3V regulator with 10uF bypass capacitors and level shifting circuitry, all assembled and tested. Comes with a 2 pin terminal block (for connecting to the thermocouple) and pin header (to plug into any breadboard or perfboard). Goes great with Adafruit's 1m K-type thermocouple.

If you need a thermocouple interface that can handle other types of thermocouples, check out Adafruit's 'Universal' MAX31856 amplifier board which can be configured in the Arduino sketch to interface with just about any kind of thermocouple

New! Now uses the MAX31855K instead of the MAX6675, so it can measure a wider temperature measurement range. Please note! the MAX31855 is not pin compatible or drop-in code compatible with the MAX6675. We do have an Arduino library for both chips but you'll need to adjust any existing MAX6675 designs for the new MAX31855. The MAX6675 has been discontinued by Maxim.

  • Works with any K type thermocouple
  • Will not work with any other kind of thermocouple other than K type
  • -200°C to +1350°C output in 0.25 degree increments - note that K thermocouples have about ±2°C to ±6°C accuracy
  • Internal temperature reading
  • 3.3 to 5v power supply and logic level compliant!
  • SPI data output requires any 3 digital I/O pins.

Hey Adafruit even have a handy tutorial on thermocouples which includes an Arduino library, wiring diagrams and example code. How easy is that?

Technical Details

Datasheet, EagleCAD PCB GitHub files, and fritzing library available in the product tutorial

Dimensions (without headers):

  • Length: 20mm/0.8in
  • Width: 20mm/0.8in
  • Height: 3.28mm/0.12in
  • Weight: 1.33g/0.05oz

Revision notes:

  • Version 2.0 now includes ferrite beads and filter capacitor onboard for better stability

This product is listed in:

Documentation and Resources:
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Product Comments


Customer Reviews

  1. Review by Daniel verified purchaser
    Rating
    100

    Perfect. Worked as expected. (Posted on 23/08/2016)

  2. Review by Matthew - Works well, but slow to arrive verified purchaser
    Rating
    80

    This op-amp worked as advertised, giving an accurate reading - the only issue was with the holes being a little large - you'll need to the solder the connections. Also, despite paying for express postage, it still took 5 days to arrive. (Posted on 1/11/2014)

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Our physical address:

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

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