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

Rating:
95% of 100
SKU: ADA269 Brand: Adafruit Guides (2)
Thermocouples are very sensitive, requiring a good amplifier with a cold-compensation reference. The MAX31855K does everything for you, and can be easily interfaced...
$30.20 AUD, inc GST
$27.45 AUD, exc GST

In stock, ships same business day if ordered before 2PM
Delivered by Tue, 5th of Mar

Quantity Discounts:

  • 10-25 $26.35 (exc GST)
  • 25+ $25.54 (exc GST)
- +

3 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

Shipping:

  • $6+ Standard (5+ days*, tracked)
  • $10+ Express (2+ days*, tracked)
  • FREE Pickup (Newcastle only - must order online*)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.

Includes headers and screw terminal block, does not include thermocouple

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.
  • Pin headers included

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

Product Comments

Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

  • $3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
  • $6+ for Standard Post (typically 6+ business days, tracked)
  • $10+ for Express Post (typically 2+ business days, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11+ for Pack and Track (3+ days, tracked)
  • $16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

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

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

Have a product question? We're here to help!

Write Your Own Review

Videos

View All

Guides

Weather Station with Arduino Tutorial

This Weather Station with Arduino was designed for the South Australia Catholic Education STEM Weath...
This Weather Station with Arduino was designed for the South Australia Catholic Education STEM Weath...

Micro:bit Temperature and Humidity Sensing

The Micro:bit has the ability to measure temperature by sensing the temperature of the sil...
The Micro:bit has the ability to measure temperature by sensing the temperature of the sil...

How to Use a LCD Screen/Display with Raspberry Pi

What fun would a computer be without a screen to see what you’re doing? Well if you own a Rasp...
What fun would a computer be without a screen to see what you’re doing? Well if you own a Rasp...

Raspberry Pi HATs

Yep, Raspberry Pi is a very cool platform, so cool that they offer a range of stylish HATs to go wit...
Yep, Raspberry Pi is a very cool platform, so cool that they offer a range of stylish HATs to go wit...

Projects

Have you ever wanted to make a Weatherproof Weather and Air Quality System that transmits its edge-...

Camera Dew Controller

Introduction My passion hobby is night-time time-lapse photography and astrophotography/nightscape...
Introduction My passion hobby is night-time time-lapse photography and astrophotography/nightscape...

ThingSpeak temperature & pressure logger

This project logs temperature and pressure observations to a ThingSpeak channel using an ESP8266 WiF...
This project logs temperature and pressure observations to a ThingSpeak channel using an ESP8266 WiF...
Feedback

Please continue if you would like to leave feedback for any of these topics:

  • Website features/issues
  • Content errors/improvements
  • Missing products/categories
  • Product assignments to categories
  • Search results relevance

For all other inquiries (orders status, stock levels, etc), please contact our support team for quick assistance.

Note: click continue and a draft email will be opened to edit. If you don't have an email client on your device, then send a message via the chat icon on the bottom left of our website.

Makers love reviews as much as you do, please follow this link to review the products you have purchased.