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高宏宇
ac12d716c1
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2 years ago | |
|---|---|---|
| .. | ||
| .settings | 2 years ago | |
| Core | 2 years ago | |
| Debug | 2 years ago | |
| Drivers | 2 years ago | |
| .cproject | 2 years ago | |
| .mxproject | 2 years ago | |
| .project | 2 years ago | |
| I2C_AHT20 Debug.launch | 2 years ago | |
| I2C_AHT20.ioc | 2 years ago | |
| Readme.md | 2 years ago | |
| STM32F103C8TX_FLASH.ld | 2 years ago | |
Readme.md
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