產品說明0
MAX31855 熱電偶模組 測溫度感測器 高溫測量 K型熱電偶模組 開發板
資料鏈接：http://pan.baidu.com/s/1b31IeLyi_sNMWzRPN0ldqQ
提取碼：rv8u
MAX31855具有冷端補償，將K、J、N、T或E型熱電偶信號轉換成數字量。器件輸出14位帶符號數據，通過SPITM兼容接口、以只讀格式輸出。轉換器的溫度分辨率為0.25℃，最高溫度讀數為+1800℃，最低溫度讀數為-270℃，對於K型熱電偶， 溫度範圍為-200℃至+700℃，保持±2℃精度.
說明：
一、測量溫度範圍： 零下200攝氏度至零上1350攝氏度
二、適用探頭，K型熱電偶，模塊不配套，需要獨立購買
三、SPI接口，高速傳輸
四、輸入電壓3-5v直流
五、直接數字輸出溫度值，無需放大器，無需ADC
六、14位分辨率，0.25度溫度精度
七、尺寸20mm X 23mm 定位孔間距15mm
產品規格
Description
Thermocouples are very sensitive, requiring a good amplifier with a cold-compensation reference. The MAX31855K does everything for you, and can be easily interfaced with any microcontroller, even one without an analog input. This breakout board has the chip itself, a 3.3V regulator with 10uF bypass capacitors and level shifting circuitry, all assembled and tested. Comes with a 2 pin terminal block (for connecting to the thermocouple) and pin header (to plug into any breadboard or perfboard).
New! Now uses the MAX31855K instead of the MAX6675, so it can measure a wider temperature measurement range. Please note!the MAX31855 is not pin compatible or drop-in code compatible with the MAX6675. We do have an Arduino library for both chips but you'll need to adjust any existing MAX6675 designs for the mew MAX31855. The MAX6675 has been discontinued by Maxim.
Version 2.0 now includes ferrite beads and filter capacitor onboard for better stability
- Works with any K type thermocouple
- Will not work with any other kind of thermocouple other than K type
- -200°C to +1350°C output in 0.25 degree increments - note that K thermocouples have about ±2°C to ±6°C accuracy
- Internal temperature reading
- 3.3 to 5v power supply and logic level compliant!
- SPI data output requires any 3 digital I/O pins
相關文件
配置文件修改方法：
temperature_control.hotend.enable true #
temperature_control.hotend.thermistor_pin 0.24 #
temperature_control.hotend.heater_pin 2.7 #
temperature_control.hotend.thermistor RRRF100K #
temperature_control.hotend.set_m_code 104 #
temperature_control.hotend.set_and_wait_m_code 109 #
temperature_control.hotend.designator T #
修改為：
temperature_control.hotend.enable true #
# temperature_control.hotend.thermistor_pin 0.24 #
temperature_control.hotend.chip_select_pin 0.16
temperature_control.hotend.spi_channel 0 # SPI channel 0 or 1
temperature_control.hotend.heater_pin 2.7 #
# temperature_control.hotend.thermistor RRRF100K #
temperature_control.hotend.sensor max31855
temperature_control.hotend.set_m_code 104 #
temperature_control.hotend.set_and_wait_m_code 109 #
temperature_control.hotend.designator T #
