K Type Thermocouple
K-type thermocouple for 3D printer hot-end temperature measurement, rated 0–800 °C with ±2 °C accuracy. Features a 125 mm stainless steel cable. Requires an amplifier IC (e.g., AD595 or MAX31855) for signal conditioning.
Pinout
- Red lead (+)lead-red
K-type thermocouple positive lead; DFRobot product specification states cable colour code Red (+). Connects to a thermocouple amplifier/input, not directly to MCU GPIO.
Type · AnalogVoltage · thermocouple millivolt-level sensor signal; temperature range 0-800°C per DFRobot specification - Blue lead (-)lead-blue
K-type thermocouple negative lead; DFRobot product specification states cable colour code Blue (-). Connects to the negative thermocouple amplifier/input.
Type · AnalogVoltage · thermocouple millivolt-level sensor return/reference
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| Red lead (+) | lead-red | Analog | K-type thermocouple positive lead; DFRobot product specification states cable colour code Red (+). Connects to a thermocouple amplifier/input, not directly to MCU GPIO. | thermocouple millivolt-level sensor signal; temperature range 0-800°C per DFRobot specification |
| Blue lead (-) | lead-blue | Analog | K-type thermocouple negative lead; DFRobot product specification states cable colour code Blue (-). Connects to the negative thermocouple amplifier/input. | thermocouple millivolt-level sensor return/reference |
Pin details
2 connections- Red lead (+)lead-red
K-type thermocouple positive lead; DFRobot product specification states cable colour code Red (+). Connects to a thermocouple amplifier/input, not directly to MCU GPIO.
AnalogVoltage · thermocouple millivolt-level sensor signal; temperature range 0-800°C per DFRobot specification - Blue lead (-)lead-blue
K-type thermocouple negative lead; DFRobot product specification states cable colour code Blue (-). Connects to the negative thermocouple amplifier/input.
AnalogVoltage · thermocouple millivolt-level sensor return/reference
Start wiring
I2C · SPI · Single data line · 3.3 – 5 V · Breakout
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