K타입 써모커플 앰프 모듈 -MAX6675
(THERMO K 3 CLICK)
개요
- 본 제품은 K타입 써모커플 앰프 모듈 -MAX6675입니다.
- K 타입 써모커플 앰프 MAX6675 과 써모커플 PCC-SMP 커넥터를 장착하고 있는 제품입니다.
- 최대 1024도까지 온도 측정을 지원하는 모듈입니다.
- SPI 인터페이스를 가지고 있습니다.
특징
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HOW DOES IT WORK?
Thermo K 3 Click is based on the MAX6675, a cold-junction-compensated K-thermocouple-to-digital converter from Analog Devices. It includes signal-conditioning hardware to convert the thermocouple signal into a voltage compatible with the input channels of the ADC. The thermocouple circuit consists of two ends of the thermocouple wires, the hot junction, which is the thermocouple probe itself (0°C - 102.75°C), and the cold junction, which is the ambient temperature, usually the board itself (-20°C - 85°C). The MAX6675 senses the difference and corrects for the changes between those two ends by compensating cold junction. The MAX6675 measures the voltage from the thermocouple's output and the sensing diode and passes it to the internal conversion function stored in the ADC.
The Thermo K 3 Click uses a 3-Wire (read-only) SPI serial interface to communicate with the host MCU with clock frequency up to 4.3MHz. Besides the temperature, you can get the data of the open thermocouple detection. For this feature, the T- of the PCC-SMP connector is grounded over the R6 0Ω resistor. You can desolder it if you do not need this feature or it does not suit your needs. This Click board™ does not come with the probe itself in the same package; however, a Type-K thermocouple probe with glass braid insulation is available in our store.
This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. However, the Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used, as a reference, for further development.
SPECIFICATIONS
Type Temperature & humidity Applications Can be used for the development of hand-held measurement equipment, industrial equipment thermal management, petrochemical thermal management, and more On-board modules MAX6675 - cold-junction-compensated K-thermocouple-to-digital converter from Analog Devices Key Features Direct digital conversion of Type-K thermocouple output, cold-junction compensation, open thermocouple detection, 12-bit (0.25 °C) resolution, PCC-SMP connector, and more Interface SPI ClickID Yes Compatibility mikroBUS Click board size L (57.15 x 25.4 mm) Input Voltage 3.3V or 5V