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LibDriver MAX6675

The MAX6675 performs cold-junction compensation and digitizes the signal from a type-K thermocouple. The data is output in a 12-bit resolution, SPI-compatible, read-only format.This converter resolves temperatures to 0.25°C, allows readings as high as +1024°C, and exhibits thermocouple accuracy of 8 LSBs for temperatures ranging from 0°C to +700°C.The MAX6675 is available in a small, 8-pin SO package.It can be used in industrial, appliances, HVAC and so on.

LibDriver MAX6675 is the full function driver of MAX6675 launched by LibDriver.It provides reading temperature function and so on. LibDriver is MISRA compliant.

Table of Contents

• Instruction
• Install
• Usage
  • example basic
• Document
• Contributing
• License
• Contact Us

Instruction

/src includes LibDriver MAX6675 source files.

/interface includes LibDriver MAX6675 SPI platform independent template.

/test includes LibDriver MAX6675 driver test code and this code can test the chip necessary function simply.

/example includes LibDriver MAX6675 sample code.

/doc includes LibDriver MAX6675 offline document.

/datasheet includes MAX6675 datasheet.

/project includes the common Linux and MCU development board sample code. All projects use the shell script to debug the driver and the detail instruction can be found in each project's README.md.

/misra includes the LibDriver MISRA code scanning results.

Install

Reference /interface SPI platform independent template and finish your platform SPI driver.

Add the /src directory, the interface driver for your platform, and your own drivers to your project, if you want to use the default example drivers, add the /example directory to your project.

Usage

You can refer to the examples in the /example directory to complete your own driver. If you want to use the default programming examples, here's how to use them.

example basic

#include "driver_max6675_basic.h"

uint8_t res;
uint32_t i;
uint32_t times;

times = 3;
res = max6675_basic_init();
if (res != 0)
{
    return 1;
}

...
    
for (i = 0; i < times; i++)
{
    uint16_t raw;
    float temp;

    /* read data */
    res = max6675_basic_read(&raw, &temp);
    if (res != 0)
    {
        (void)max6675_basic_deinit();

        return 1;
    }

    /* output */
    max6675_interface_debug_print("%d/%d %0.2fC.\n", i + 1, times, temp);

    /* delay 1000ms */
    max6675_interface_delay_ms(1000);
    
    ...
}

...
    
/* deinit */
(void)max6675_basic_deinit();

return 0;

Document

Online documents: https://www.libdriver.com/docs/max6675/index.html.

Offline documents: /doc/html/index.html.

Contributing

Please refer to CONTRIBUTING.md.

License

Copyright (c) 2015 - present LibDriver All rights reserved

The MIT License (MIT)

Permission is hereby granted, free of charge, to any person obtaining a copy

of this software and associated documentation files (the "Software"), to deal

in the Software without restriction, including without limitation the rights

to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

copies of the Software, and to permit persons to whom the Software is

furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all

copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

SOFTWARE.

Contact Us

Please sent an e-mail to [email protected].