Build a simple circuit by connecting DS18B20 digital sensor to Arduino
27 九月
溫度傳感器技術

DS18B20 Digital Temperature Sensor Connect Arduino

Today I will show you how to use the DS18B20 digital temperature sensor with an Arduino so you can measure the temperature of air, liquids such as water, and the ground.
To connect the DS18B20 digital temperature sensor to Arduino, you need to do the following steps:
‌Hardware connection‌:
Connect the VCC pin of DS18B20 to the 3.3V power pin of Arduino.
Connect the GND pin of DS18B20 to the ground pin of Arduino.
Connect the data pin of DS18B20 to the GPIO pin of Arduino (for example, GPIO4).
Connect a 4.7kΩ pull-up resistor between the data pin and the 3.3V power pin.

繼續閱讀

04 Jun
溫度傳感器技術

PT100/PT1000溫度採集電路解決方案

鎳等金屬熱電阻器, copper and platinum resistors have a positive correlation with the change in resistance with temperature. 鉑具有最穩定的物理化學性質，應用最廣泛. The temperature measurement range of the commonly used platinum resistor Pt100 is -200～850 ℃. 另外, the temperature measurement ranges of Pt500, 鉑1000, 等. 依次減少. 鉑1000, temperature measurement range -200～420 ℃. 根據IEC751國際標準, 鉑電阻Pt1000嘅溫度特性滿足以下要求:

繼續閱讀