Description:The HTU21D is a low-cost, easy to use, highly accurate, digital humidity and temperature sensor. This sensor is ideal for environmental sensing and data logging and perfect for a weather stations or humidor control systems. All you need is two lines for I2C communication and you’ll have relative humidity readings and very accurate temperature readings as a bonus!
There are only four pins that need to be hooked up in order to start using this sensor in a project. One for VCC, one for GND, and two data lines for I2C communication. This breakout board has built in 4.7k pull up resistors for I2C communications. If you’re hooking up multiple I2C devices on the same bus, you may want to disable these resistors
基于法国Humirel公司高性能的湿度感应元件制成,新一代HTU21D温度和湿度传感器在尺寸与智能方面建立了新的标准:它嵌入了适于回流焊的双列扁平无引脚DFN封装,底面3x3mm,高度1.1mm。传感器输出经过标定的数字信号,标准I2C格式。多样化的输出方式,宽的工作电压范围,同时具有很高的温度精度和湿度精度。HTU21系列模块专为低功耗小体积应用设计,具有良好的品质、快的响应速度、抗干扰能力强、性价比高等优点,微小的体积(3x3mm)、极低的功耗
传感器重要参数:
供电电压:1.5V—3.6
湿度测量范围:0—100%RH
温度测量范围:-40℃—105℃
消耗功率:2.7uW
通信方式:I2C
湿度精度范围(10%RH to 95%RH):HTU21D±2%RH
湿度迟滞:±1%RH
测量时间:50ms
年漂移量:-0.5%RH/year
响应时间:5 s
同时HTU21D可以和瑞士的SHT20、SHT21实现完全兼容,硬件管脚上可以实现Pin to Pin,无需修改电路板。软件程序方面也和瑞士的SHT20、SHT21相同,可以实现兼容替换,无需做出任何修改。同时HTU21D比起瑞士SHT20、SHT21有着很好的价格优势,极具性价比.
HTU21D超小体积的温湿度一体数字输出模块是由法国著名的传感器制造商Humirel公司推出的一款性能优良的产品。同时,HTU21D在价格、性能、功耗等方面都有很大优势。
排针配送
수입신고 1USD |
구매/결제대행 1CNY |
TT송금 1CNY |
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6.95 CNY | 199.59 KRW | 0.149 USD |