Thermocouple Amplifier MAX31855 breakout board (MAX6675 upgrade)
Qty | Discount |
---|---|
1-9 | $14.95 |
10-99 | $13.46 |
100+ | $11.96 |
Description
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 our 1m K-type thermocouple.
If you need a thermocouple interface that can handle other types of thermocouples, check out our '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.
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
- Note: The terminal blocks included with your product may be blue or black.
Learn




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Mouser Electronics
United States -
Sengoku Densyo Co., Ltd.
Japan -
MicroControleur Hobby
Belgium -
Robotscience
South Korea -
MechaSolution
South Korea -
EXP-Tech
Germany -
SHA 256 Systems
Germany -
www.direnc.net
Turkey -
Electronic Network Inc
Canada -
Robotev
Bulgaria -
Digi-Key Electronics
United States -
Electrokit Sweden AB
Sweden -
The Pi Hut
United Kingdom -
Makersify
United Kingdom -
GRobotronics
Greece -
Kiwi Electronics
Netherlands -
VCTEC KOREA
South Korea -
Learning Developments
New Zealand -
kjdelectronics
United States -
3DMakerWorld, Inc.
United States -
BerryBase
Germany -
Samm Market
Turkey -
Eckstein Komponente
Germany -
Arduitronics
Thailand -
Core Electronics
Australia -
BC-Robotics
Canada -
Pimoroni
United Kingdom -
NTREX, Inc.- Devicemart
South Korea
See our Distributors page for a complete list of distributors.