DHT11 stm32
时间: 2023-10-09 21:06:22 浏览: 80
DHT11是一种数字温湿度传感器,用于测量环境的温度和湿度。它采用单总线数据格式进行通讯,并且一次传送40位数据,高位先出。在使用DHT11与STM32进行通讯时,需要进行一系列的操作。首先,需要对DHT11进行复位操作,即将DHT11的DATA引脚拉低至少18ms,然后再拉高20~40us,以确保DHT11处于可通信状态。接下来,需要等待DHT11的回应,判断DHT11是否存在。如果在一定的重试次数内未检测到DHT11的存在,就返回1表示不存在,否则返回0表示存在。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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- *2* [STM32外设系列—DHT11](https://blog.csdn.net/qq_45217381/article/details/131378040)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
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