ocrobot:alpha:htu21d:index
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— | ocrobot:alpha:htu21d:index [2023/06/07 04:23] (当前版本) – 外部编辑 127.0.0.1 | ||
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+ | ====== ALPHA HTU21D ====== | ||
+ | ===== 简介 ===== | ||
+ | HTU21D是一款温湿度一体化数字传感器。每一个传感器都经过校准和测试。具有较高的温度精度和湿度精度。 | ||
+ | |||
+ | ===== 特点 ===== | ||
+ | - IIC总线接口 | ||
+ | - 完全校准 | ||
+ | - 极快的响应速度。 | ||
+ | |||
+ | ===== 参数 ===== | ||
+ | |||
+ | ^ 供电电压 | ||
+ | ^ 湿度测量范围 | ||
+ | ^ 温度测量范围 | ||
+ | ^ 通信方式 | ||
+ | ^ 湿度精度范围(10%RH to 95%RH) | ||
+ | ^ 湿度迟滞 | ||
+ | ^ 测量时间 | ||
+ | ^ 年漂移量 | ||
+ | ^ 响应时间 | ||
+ | |||
+ | =====参考图片===== | ||
+ | {{: | ||
+ | {{: | ||
+ | |||
+ | =====代码===== | ||
+ | <code cpp> | ||
+ | / | ||
+ | -VCC = 3.3V | ||
+ | -GND = GND | ||
+ | -SDA = A4 (use inline 330 ohm resistor if your board is 5V) | ||
+ | -SCL = A5 (use inline 330 ohm resistor if your board is 5V) | ||
+ | */ | ||
+ | #include < | ||
+ | #include " | ||
+ | |||
+ | //Create an instance of the object | ||
+ | HTU21D myHumidity; | ||
+ | |||
+ | void setup() | ||
+ | { | ||
+ | Serial.begin(9600); | ||
+ | Serial.println(" | ||
+ | |||
+ | myHumidity.begin(); | ||
+ | } | ||
+ | |||
+ | void loop() | ||
+ | { | ||
+ | float humd = myHumidity.readHumidity(); | ||
+ | float temp = myHumidity.readTemperature(); | ||
+ | |||
+ | Serial.print(" | ||
+ | Serial.print(millis()); | ||
+ | Serial.print(" | ||
+ | Serial.print(temp, | ||
+ | Serial.print(" | ||
+ | Serial.print(" | ||
+ | Serial.print(humd, | ||
+ | Serial.print(" | ||
+ | |||
+ | Serial.println(); | ||
+ | delay(1000); | ||
+ | } | ||
+ | </ | ||
+ | ===== 下载 ===== | ||
+ | **驱动库:**{{: | ||
+ | |||
+ | **数据手册:**{{: | ||
+ | |||
+ | **原理图:**{{: | ||