Noduino SHT2x
来自Jack's Lab
目录 |
1 开发环境准备
根据您的系统,选择如下快速指南:
- Getting Started with Noduino SDK on Linux
- Getting Started with Noduino SDK on Mac OS X
- Getting Started with Noduino SDK on Windows
2 硬件准备
此传感器为 I2C 接口,Falcon 接线方式如下:
- Sensor_SCL --> Noduino_Falcon_D9
- Sensor_SDA --> Noduino_Falcon_D8
- Sensor_3V3 --> Noduino_Falcon_3V3
- Sensor_GND --> Noduino_Falcon_GND
NodeC / SmartNode 接线方式如下:
- Sensor_SCL --> SmartNode_IO5
- Sensor_SDA --> SmartNode_IO4
- Sensor_3V3 --> SmartNode_3V3
- Sensor_GND --> SmartNode_GND
3 编译烧写
进入你的 sht2x 目录:
$ cd /PATH/TO/noduino-sdk/examples/noduino/sht2x/
编译、上传一步完成:
$ make flash
不同平台下,你的串口设备号可能不一样,确认一下你的串口设备,Linux 下 Falcon 开发板可能被识别为 /dev/ttyUSB1(dmesg 查看),则:
$ make flash ESPPORT=/dev/ttyUSB1
Windows 下 Falcon 开发板可能被识别为 COM6(控制面板 --> 设备管理器里查看),则:
$ make flash ESPPORT=COM6
4 查看结果
上传完之后,用串口工具,用 115200 的波特率打开串口,即可看到串口在持续输出传感器测得的温度湿度值:
Windows 下可用串口调试助手这类插看
Linux 下推荐使用 picocom:
$ sudo apt-get install picocom $ picocom -b 115200 /dev/ttyUSB1 picocom v1.7 port is : /dev/ttyUSB2 flowcontrol : none baudrate is : 115200 parity is : none databits are : 8 escape is : C-a local echo is : no noinit is : no noreset is : no nolock is : no send_cmd is : sz -vv receive_cmd is : rz -vv imap is : omap is : emap is : crcrlf,delbs, Terminal ready ...... ......
Ctrl + a q 退出 picocom
5 代码示例
#include "noduino.h" #include "sht2x.h" void setup() { serial_begin(115200); serial_printf("Start to test SHT2x sensor!\r\n"); wire_begin(); } void loop() { char t_buf[8]; char h_buf[8]; sht2x_reset(); serial_printf("After reset, User Reg = 0x%x\r\n", sht2x_read_reg()); dtostrf(sht2x_GetTemperature(), 5, 2, t_buf), dtostrf(sht2x_GetHumidity(), 5, 2, h_buf); serial_printf("Temperature(C): %s\r\n", t_buf); serial_printf("Humidity(%RH): %s\r\n", h_buf); sht2x_setResolution(0x81); serial_printf("After set resolution, User Reg = 0x%x\r\n", sht2x_read_reg()); dtostrf(sht2x_GetTemperature(), 5, 2, t_buf), dtostrf(sht2x_GetHumidity(), 5, 2, h_buf); serial_printf("Temperature(C): %s\r\n", t_buf); serial_printf("Humidity(%RH): %s\r\n", h_buf); delay(5000); }
6 扩展阅读
- 更多问题参考: