Noduino TSL2561

1 开发环境准备

根据您的系统，选择如下快速指南：

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 tsl2561 目录：

$ cd /PATH/TO/noduino-sdk/examples/noduino/tsl2561

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 "tsl2561.h"

irom void setup()
{
	serial_begin(115200);

	if (!tsl2561_begin(TSL2561_ADDR_LOW)) {
		serial_print("Could not found TSL2561 sensor!\r\n");

		while (1) {}
	}

	tsl2561_setGain(TSL2561_GAIN_16X);		// set 16x gain (for dim situations)

	// Changing the integration time gives you a longer time over which to sense light
	// longer timelines are slower, but are good in very low light situtations!
	tsl2561_setTiming(TSL2561_INTEGRATIONTIME_13MS);		// shortest integration time (bright light)
}
  
void loop()
{
	// Simple data read example. Just read the infrared, fullspecrtrum diode 
	// or 'visible' (difference between the two) channels.
	// This can take 13-402 milliseconds! Uncomment whichever of the following you want to read
	uint16_t x = tsl2561_getLuminosity(TSL2561_VISIBLE);     

	serial_printf("Luminosity:\t %d\r\n", x);

	// More advanced data read example. Read 32 bits with top 16 bits IR, bottom 16 bits full spectrum
	// That way you can do whatever math and comparisons you want!
	uint32_t lum = tsl2561_getFullLuminosity();
	uint16_t ir, full;
	ir = lum >> 16;
	full = lum & 0xFFFF;

	serial_printf("IR:\t\t %d\r\n", ir);
	serial_printf("Full: ", full);
	serial_printf("Visible:\t %d\r\n", full - ir);
	serial_printf("Lux:\t\t %d\r\n\n", tsl2561_calculateLux(full, ir));

	delay(3000);
}

6 扩展阅读

更多问题参考：

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