GY-906非接触式红外测温传感器Python/C++编程树莓派与ESP32使用例程

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传感器PythonC++ESP32Pico

一：GY906红外测温传感器介绍

1.传感器参数

GY906红外测温传感器是一种基于红外辐射原理的非接触式温度测量设备，常用于测量物体表面温度，由于 GY906红外测温传感器无需直接接触物体，避免污染或损坏，还有它的高精度和快速响应的特点，广泛应用于多个领域。最直接的应用产品就是医疗测温仪！我们在使用时需注意环境因素和校准。

测温范围：通常为-70°C至+380°C

工作电压：3-5.5V

测量距离：(BAA-2CM) （BCC-10cm）（DCI-1m）

高精准度：精度可达±0.5°C，适合高精度需求

快速响应：响应时间短，适合动态温度监测

数字输出：通过I2C接口输出数字信号，便于与微控制器连接

体积小巧：便于集成到各种设备中

2.电路原理图

GY906传感器原理图

🛒GY906传感器产品购买链接

GY906传感器不同型号，测量距离不同

二：树莓派例程

1.Pico接线图

以树莓派Pico开发板为例，提醒: 请按下图的引脚标识接线，务必不能接错。如果接错线通电后会导致设备烧毁！

接好线后实图如下：

2.Python程序

gy906 下载这个gy906的源代码上传至树莓派pico文件内，直接运行查看数据（如下图）

如果你还没有搭建好树莓派Python编程环境可参考这个帖子→：如何搭建Python编程环境

将传感器探头对着手，测试检测温度

三：ESP32例程

1.ESP32接线图

本次以ESP32-S3主板为例按下图接好连接线，务必注意不可接反，否则会烧毁传感器。

2.C++程序

1.需要在Arduino IDE中点击左侧栏的库管理器（Library Manager）（或按 Ctrl + Shift + I），搜索并安装下面这个库：

Adafruit MLX90614

gy906 下载这个gy906源代码直接用Arduino IDE编译上传程序打开串口监视查看（如下图）

如果你还没有搭建好ESP32的ArduinoIDE的编程环境可参考这个帖子→：搭建ArduinoIDE编程环境

3.代码解析

这段 ESP32 读取 GY-906（MLX90614）的代码运行逻辑可以拆解为以下三个核心步骤：

1.驱动与引脚重映射

引入 Wire.h（I2C通信库）和 Adafruit_MLX90614.h（红外传感器驱动）。

将默认的 I2C 引脚重定向定义为 SDA = GPIO 4，SCL = GPIO 18。

2.初始化检测（setup）

串口初始化：开启 115200 波特率串口，用于向电脑输出数据。

I2C 总线挂载：执行 Wire.begin(4, 18)，告诉 ESP32 从 GPIO 4 和 18 引脚建立 I2C 通信。

传感器握手：执行 mlx.begin() 检测 0x5A 地址上的 GY-906。若连接失败则进入死循环挂起，防止后续读取异常数据。

3.数据采集与输出（loop）

读取环境温度：调用 mlx.readAmbientTempC()，获取传感器自身周围的空气温度。

读取目标温度：调用 mlx.readObjectTempC()，通过红外探测获取前方物体的表面温度。

打印与延时：将数据格式化后发送至串口监视器，并通过 delay(1000) 实现每秒刷新一次数据。

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作者签名：楼主 2025-06-25 17:47:36

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GY-906非接触式红外测温传感器Python/C++编程 树莓派与ESP32使用例程

一：GY906红外测温传感器介绍

1.传感器参数

2.电路原理图

二：树莓派例程

1.Pico接线图

2.Python程序

三：ESP32例程

1.ESP32接线图

2.C++程序

3.代码解析

技术支持（对本页存在疑难问题可联系我们工程师）

GY-906非接触式红外测温传感器Python/C++编程树莓派与ESP32使用例程