SerialCouple is an easy-to-use thermocouple adapter, allowing you to plug a standard K type thermocouple into a computer or other microcontroller project. Once plugged into a computer, the current thermocouple temperature can be easily monitored and logged to a file using any standard serial port software such as Hyperterminal or Putty.

These boards operate by controlling a Maxim thermocouple ADC with an AVR microcontroller, which then sends the readings out the relatively standard 6 pin 3.3V serial port. This means, in addition to a fully populated SerialCouple board, you also will need:

• An FTDI-compatible USB-to-serial adapter (i.e. this one on AdaFruit)
• A thermocouple matching the ADC on the board. The SerialCouple boards are normally populated with K type ADCs, which are the most typical junction type, being able to handle -200C to +1350C at the junction (although likely much less in the cladding, so check your specific thermocouple). AdaFruit sells a standard K thermocouple that would work. Slightly cheaper ones, and ones in other styles (encased in steel, etc), can be had on eBay.

Initial announcement

Monitoring thermocouple temperature demo

Monitoring oven temperature demo

Once all major hardware and software issues have been ironed out, I plan to make these available for sale. If you would be interested in buying one when they become available, or have any questions, feel free to send me an email: kennethfinnegan2007@gmail.com.