MAX6675 K-Type Thermocouple Temperature Module — SPI, 0–1024°C

MAX6675 K-Type Thermocouple Temperature Module — SPI, 0–1024°C

The MAX6675 thermocouple module interfaces a K-type thermocouple to Arduino via SPI, measuring temperatures from 0°C to 1024°C with 0.25°C resolution. The MAX6675 IC handles cold-junction compensation internally — simply connect a K-type thermocouple and read temperature directly. Ideal for high-temperature applications far beyond the range of standard temperature sensors.

Key Specifications

• IC: MAX6675 | Thermocouple: K-type
• Temperature range: 0–1024°C | Resolution: 0.25°C (12-bit)
• Accuracy: ±8°C | Interface: SPI (read-only)
• Cold-junction compensation: Internal
• Supply voltage: 3.3–5V
• Compliance: RoHS compliant

Why Choose This?

• ✅ 0–1024°C range — measure temperatures far beyond NTC/DHT sensor limits
• ✅ Internal cold-junction compensation — no external reference thermometer needed
• ✅ SPI interface — simple 3-wire connection to Arduino
• ✅ MAX6675 Arduino library — one-line temperature reading

Typical Applications

• Reflow oven and soldering station temperature control
• BBQ smoker and kiln temperature monitoring
• Industrial furnace and boiler temperature measurement
• 3D printer heated bed and hotend temperature

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