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          Grove - I2C Thermocouple Amplifier (MCP9600) The Grove - I2C Thermocouple Amplifier (MCP9600) is a thermocouple-to-digital converter with integrated cold-junction and I2C communication protocol. This module is designed to be used in conjunction with a k-type thermocouple. The thermocouples have a much larger measurement range than thermistors. For example, this k-type thermocouple on our website has a measurement range of -50 to +600 . We also provide the alert function for this module, you can use the progarammable alert pin to provide an interrupt signal to the controller. Again, this module can't work alone, it must work with a k-type thermocouple, if you do not have one, you can consider Thermocouple Temperature Sensor K Type-1M in our bazaar.     Features  Integrated Cold-Junction Compensation  Supported Types (designated by NIST ITS-90): Type K, J, T, N, S, E, B and R  Four Programmable Temperature Alert Outputs:  Monitor Hot- or Cold-Junction  temperatures  Detect rising or falling temperatures   Up to 255°C of Programmable Hysteresis Programmable Digital Filter for Temperature  Low Power Note The Grove - I2C Thermocouple Amplifier (MCP9600) do support Type K, J, T, N, S, E, B and R on hardware, however, at present, our library do not support any other kind of thermocouple except K type. If you have any needs in this regard, please contact our email: techsupport@seeed.cc. Specification Item Value  Operating Voltage  3.3V/5V  Ambient Temperature  ‐40  ~ +125   Storage Temperature  ‐65  ~ +150   Max. Junction Temperature  +150   Hot‐Junction Accuracy  ±1.5°C (Max.)  Measurement Resolution  Hot and Cold‐Junctions: 0.0625°C (typical)  Interface  I2C  I2C Address  0x60(default) / 0x67(optional)          Applications  Petrochemical Thermal Management  Hand-Held Measurement Equipment  Industrial Equipment Thermal Management  Ovens  Industrial Engine Thermal Monitor  Temperature Detection Racks Hardware Overview Pin Map     Schematic Power The operating voltage range of MCP9600 is 2.7V ~ 5.5V, we use a power conversion chip XC6206P332MR-G to provide a stable 3.3V for the MCP9600. Input Jack     Because of the small signal levels involved, we take a lot measures to filter the noise.  1--L1,L2 We use thermocouple up to 1 meter long. Such long wires can be regarded as antennas, which will receive spatial electric field interference and generate high frequency noise. So we use two inductances to filter the high frequency noise.  2--C1 It is strongly recommended by the chip manufacturer to add a 100nF ceramic surfacemount differential capacitor, placed across the T+ and T- pins, in order to filter noise on the thermocouple lines.  3--D1 We use the SZNUP2105LT3G DUAL BIDIRECTIONAL VOLTAGE SUPPRESSOR to protect this module from ESD(Electro-Static discharge). Bi-directional level shifter circuit This is a typical Bi-directional level shifter circuit to connect two different voltage section of an I2C bus. The I2C bus of this sensor use 3.3V, if the I2C bus of the Arduino use 5V, this circuit will be needed. In the schematic above, Q1 and Q5 are N-Channel MOSFET 2N7002A, which act as a bidirectional switch. In order to better understand this part, you can refer to the AN10441 Platforms Supported Arduino Raspberry Pi    BeagleBone    Wio    LinkIt ONE          Caution The platforms mentioned above as supported is/are an indication of the module's hardware or theoritical compatibility. We only provide software library or code examples for Arduino platform in most cases. It is not possible to provide software library / demo code for all possible MCU platforms. Hence, users have to write their own software library. Getting Started Play With Arduino Hardware Materials required Seeeduino V4.2 Base Shield    Grove ‐ I2C Thermocouple Amplifier    Note 1 Please plug the USB cable gently, otherwise you may damage the port. Please use the USB cable with 4 wires inside, the 2 wires cable can't transfer data. If you are not sure about the wire you have, you can click here to buy 2 Each Grove module comes with a Grove cable when you buy. In case you lose the Grove cable, you can click here to buy.    Step 1. Connect the Grove - I2C Thermocouple Amplifier (MCP9600) to port I2C of Grove-Base Shield.  Step 2. Plug Grove - Base Shield into Seeeduino.  Step 3. Connect Seeeduino to PC via a USB cable.     Note If we don't have Grove Base Shield, We also can directly connect this module to Seeeduino as below. Seeeduino Grove Cable  Grove ‐ I2C Thermocouple Amplifier  GND  Black  GND  5V / 3.3V  Red  VCC  SDA  White  SDA  SCL  Yellow  SDA  Software Note If this is the first time you work with Arduino, we strongly recommend you to see Getting Started with Arduinobefore the start.    Step 1. Download the Seeed_MCP9600 Library from Github.  Step 2. Refer to How to install library to install library for Arduino.  Step 3. Restart the Arduino IDE. Open the example, you can open it in the following three ways：   a. Open it directly in the Arduino IDE via the path: File → Examples → Grove Temperature sensor MCP9600 → MCP9600_4channel_INT_demo. b. Open it in your computer by click the MCP9600_4channel_INT_demo.ino which you can find in the folder XXXX\Arduino\libraries\Seeed_MCP9600master\examples\MCP9600_4channel_INT_demo, XXXX is the location you installed the Arduino IDE. c. Or, you can just click the icon in upper right corner of the code block to copy the following code into a new sketch in the Arduino IDE. 1#include "Seeed_MCP9600.h" 2 3#ifdef ARDUINO_SAMD_VARIANT_COMPLIANCE 4 #define SERIAL SerialUSB 5#else 6 #define SERIAL Serial 7#endif 8 9MCP9600 sensor; 10 11/**@brief interruption cfg. 12 * 13 * 14 * */ 15err_t sensor_INT_config() 16{ 17 err_t ret=NO_ERROR;     18 CHECK_RESULT(ret,sensor.set_filt_coefficients(FILT_MID)); 19 20 for(int i=0;i