MAX6675 K-Type Thermocouple Module

Thermocouple interface for higher-temperature measurement demos.

High Temperature SensorRM12-RM35Intermediate

Arduino ✓ESP32 ✓

Use MAX6675 in my FYP View related FYP titles

MAX6675 K-Type Thermocouple Module electronics module illustration

AI Ready Overview

Quick Summary

MAX6675 is a high temperature sensor commonly used in FYP and embedded projects. It is best for heater monitoring and oven demo, with wiring and testing planned around Arduino, ESP32.

Difficulty

Intermediate

Time Required

1-2 weeks for wiring, basic code, platform integration and repeated test readings

Cost

RM12-RM35 module range in Malaysia; full project cost depends on scope.

Components

MAX6675, Arduino, ESP32

Overview

What is MAX6675?

MAX6675 modules read K-type thermocouples over SPI. They are useful for higher-temperature monitoring where DHT or DS18B20 sensors are not suitable.

Engineering Reference

Quick Specs

Operating Voltage	3.3V / 5V module variants
Interface	SPI
Difficulty	Intermediate
Typical Malaysia Price	RM12-RM35
Best For	Heater monitoring, Oven demo

Real Usage Notes

Suitable / Not Suitable

Suitable for

✓ Heater monitoring
✓ Oven demo
✓ High-temperature logging

Not suitable for

✕ Humidity sensing
✕ Medical temperature
✕ No thermocouple calibration

Build Planning

Difficulty

MAX6675 is rated Intermediate. Plan around 1-2 weeks for wiring, basic code, platform integration and repeated test readingsdepending on wiring, libraries, calibration, dashboard/app integration and testing evidence.

Build Planning

Time Required

1-2 weeks for wiring, basic code, platform integration and repeated test readings

Malaysia Price Guidance

Cost

Typical module price range: RM12-RM35. This is component guidance only; a complete FYP cost depends on controller, sensors, casing, display, app/dashboard, documentation and timeline.

Connections

Connection overview

Module revisions can use different connector names and electrical limits. Treat this as a planning overview and verify the exact board marking, manufacturer datasheet and seller documentation before wiring.

Power

Use only a supply supported by the exact board or module variant. Common listings for this part mention 3.3V or 5V module variants.

Ground

Connect a common ground between the controller, module and any external supply.

Primary interface

Plan for SPI; confirm the exact terminal names in the manufacturer documentation.

Variant-specific connections

Connector names and optional pins can differ between breakout-board revisions.

Platform Notes

Wiring Guides

MAX6675 with Arduino / ESP32

This is a planning overview, not a board-specific pin map. Confirm the exact module revision, supply limits and SPI terminals in its datasheet before wiring. Use suitable level shifting when logic voltages differ.

Power	Confirm against the exact board; listed variants commonly use 3.3V / 5V module variants
Ground	Common ground with the controller
Interface	SPI (exact pins vary by module)

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