Four channel MAX31855 digital thermocouple Arduino Shield. Two versions of this shield are avaliable for each thermocouple type: either 'Ch 0-3' (CS pins use Uno/Mega IO pins 7-10) or 'Ch 4-7' (CS pins use Uno/Mega IO pins 3-6), with the only difference being which set of zero-ohm resistors are populated on the board. This allows use of other SPI devices that may be 'hard coded' to specific digital pins on the Arduino, or simply stacking one of each type together to get a total of eight thermocouple channels on one Arduino.

Each order comes with one board and a set of four female, long extension, headers that can be soldered to the board. If stacking two of these modules on top of each other, please order both a Ch 0-3 and a Ch 4-7 board, as well as an additional set of headers for stacking. We're working on sourcing even longer headers, but the ones currently available are not long enough to stack as-is (they need to be double-stacked).

The MAX31855K supports a measured temperature range of -270C-1372C with known thermal characteristics and output resolution of 0.25C. Included thermocouple connectors are type-specific to provide proper material continuity as close to the IC as possible. The SEN-30004 is interfaced via 3 or 4-wire SPI and a high-speed level shifter is included to allow the board to plug directly into an Arduino Uno or Mega

Note: we also offer a universal version of this board in a smaller for factor, the SEN-30003-K.

Features

• Type-specific, miniature-sized vertical thermocouple connectors (vertical flat blades, see pics)
• Measures four (4) thermocouple channels, full extended range.
• Boards are stackable. Up to 8 thermocouple channels may be connected to an Arduino.
• Plugs directly into an Arduino Uno or Mega form factor with built-in voltage level translation on-board.
• Standard Arduino female headers included with order (1-6x1, 2-8x1, 1-10x1 0.1" female stackable headers), not soldered on.
• Detects shorts to GND or Vcc
• Detects open thermocouple
• Other versions available (K, J, and T stocked). Contact Customer Service to place a custom order.
• Mounting holes for 4-40 sized screws
• Connections are spaced for 0.1" pin header
• Designed, manufactured, tested and shipped from the USA