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536 B
536 B
I2C_AHT20
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将PB6、PB7分别配置为I2C_SCL、I2C_SDA
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在Project Manager - Code Generator中勾选Generate peripheral initialization as a pair of...
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配置I2C1
- I2C选择I2C
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配置USART2为Asynchronous
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复制dht20.c/dht20.h文件到Core的Src/Inc目录下
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API
- DHT20_Init() 初始化AHT20
- DHT20_Get_T_H 获取温湿度
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注意：默认无法使用sprintf打印浮点数，需要在工程Properties - C/C++ Build - Settings - MCU Settings中，勾选Use float with printf from newlib -nano