Adafruit MAX31865 PT100 RTD Temperature Sensor Amplifier
SKU: TH2057
In Stock₹1,733.42
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SKU: TH2053
Adafruit MCP9600 I2C Thermocouple Amplifier makes it easy to read thermocouples with a microcontroller or single-board computer over a simple I2C interface. The MCP9600 handles the analogue front end and cold-junction compensation internally, so you can focus on reliable temperature measurements instead of tricky signal conditioning.
This breakout supports a wide range of thermocouple types: K, J, T, N, S, E, B and R. You can read both the thermocouple hot-junction temperature and the chip's internal cold-junction temperature, and configure alert thresholds for over- or under-temperature conditions.
The board comes assembled and tested, with an onboard 3.3V regulator and level shifting circuitry, making it suitable for both 3.3V and 5V logic. It is a practical choice for ovens, industrial sensing, lab monitoring, data logging, and general maker projects that need accurate high-temperature sensing.
Technical details for the Adafruit MCP9600 I2C Thermocouple Amplifier breakout.
| Brand | Adafruit |
|---|---|
| Chipset | MCP9600 |
| Interface | I2C |
| Supply Voltage | 2.7V to 5V input supported on Vin; works with 3.3V or 5V logic |
| Thermocouple Types | K, J, T, N, S, E, B, R |
| Resolution | ±0.0625°C |
| Temperature Readings | Thermocouple (hot junction) and internal chip (cold junction) |
| Board Features | 3.3V regulator, level shifting, assembled and tested breakout |
Note: measurement resolution is not the same as overall system accuracy. For example, K-type thermocouples commonly have about ±2°C to ±6°C accuracy.
This breakout is designed for straightforward wiring to popular development boards.
| Pin | Name | Function |
|---|---|---|
| 1 | VIN | Power input. Connect 3.3V or 5V to match your microcontroller logic level. |
| 2 | GND | Common ground for power and logic. |
| 3 | SCL | I2C clock connection. |
| 4 | SDA | I2C data connection. |
| 5 | TC + | Positive thermocouple screw terminal connection. |
| 6 | TC - | Negative thermocouple screw terminal connection. |
Connect VIN, GND, SCL and SDA to your controller, then attach the thermocouple leads to the screw terminal. The board can be used with many Arduino-compatible boards, Feather boards, and other I2C-capable systems.
For quick prototyping, this breakout pairs well with a 1m K-type thermocouple.
This breakout supports K, J, T, N, S, E, B, and R type thermocouples. The thermocouple type is handled by the MCP9600 over I2C.
Yes, it is designed to interface with microcontrollers and single-board computers over I2C. The board includes level shifting and works with both 3.3V and 5V logic.
The MCP9600 chip can handle 2.7V to 5V, and the breakout is intended for 3.3V to 5V power and logic. Adafruit recommends powering VIN from the same voltage as your controller logic, such as 3.3V for a Feather or 5V for an Arduino Uno.
You can read both the thermocouple hot-junction temperature and the chip's cold-junction temperature over I2C. The listed measurement resolution is ±0.0625 °C.
The rated range depends on the thermocouple type, for example K type is listed at -200°C to +1372°C and J type at -150°C to +1200°C. Other supported ranges in the datasheet brief include T: -200°C to +400°C, N: -150°C to +1300°C, E: -200°C to +1000°C, S: +250°C to +1664°C, B: +1000°C to +1800°C, and R: +250°C to +1664°C.
Yes, the included parts are a 2-pin terminal block for the thermocouple connection and a pin header for breadboard or perfboard use. The board itself comes assembled and tested.
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