【Follow me第二季第2期】+ 扩展任务一使用LTR-329 环境光传感器，上传到HA并显示

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【Follow me第二季第2期】+ 扩展任务一使用LTR-329 环境光传感器，上传到HA并显示 [复制链接]

本帖最后由御坂10032号于 2024-9-8 21:45 编辑

前言

在上一个章节中我们学习了如何使用R4连接WIFI并且使用MQTT client 成功的和HA通讯以及交互，那么在本章节我们将会学习如何使用R4 来通过IIC采集LTR-329的数据并且上传到HA，在HA的面板中显示。

正文

这个任务主要分为三个方面

1- 使用R4读取LTR-329传感器数据

2- 配置HA实体

3- 将数据上传到HA

1- 使用R4读取LTR-329传感器数据

得益于强大的Arduino生态，我们可以直接在Arduino 库管理器中查找到我们需要的库（在库管理器中搜索LTR329并且安装）

打开Example示例

代码如下

/***************************************************
  This is an example for the LTR329 light sensor that reads both channels
  and demonstrates how to set gain and check data validity

  Designed specifically to work with the LTR-329 light sensor from Adafruit
  ----> https://www.adafruit.com/product/5591

  These sensors use I2C to communicate, 2 pins are required to
  interface
 ****************************************************/

#include "Adafruit_LTR329_LTR303.h"

Adafruit_LTR329 ltr = Adafruit_LTR329();

void setup() {
  Serial.begin(115200);
  Serial.println("Adafruit LTR-329 advanced test");

  if ( ! ltr.begin() ) {
    Serial.println("Couldn't find LTR sensor!");
    while (1) delay(10);
  }
  Serial.println("Found LTR sensor!");

  ltr.setGain(LTR3XX_GAIN_2);
  Serial.print("Gain : ");
  switch (ltr.getGain()) {
    case LTR3XX_GAIN_1: Serial.println(1); break;
    case LTR3XX_GAIN_2: Serial.println(2); break;
    case LTR3XX_GAIN_4: Serial.println(4); break;
    case LTR3XX_GAIN_8: Serial.println(8); break;
    case LTR3XX_GAIN_48: Serial.println(48); break;
    case LTR3XX_GAIN_96: Serial.println(96); break;
  }

  ltr.setIntegrationTime(LTR3XX_INTEGTIME_100);
  Serial.print("Integration Time (ms): ");
  switch (ltr.getIntegrationTime()) {
    case LTR3XX_INTEGTIME_50: Serial.println(50); break;
    case LTR3XX_INTEGTIME_100: Serial.println(100); break;
    case LTR3XX_INTEGTIME_150: Serial.println(150); break;
    case LTR3XX_INTEGTIME_200: Serial.println(200); break;
    case LTR3XX_INTEGTIME_250: Serial.println(250); break;
    case LTR3XX_INTEGTIME_300: Serial.println(300); break;
    case LTR3XX_INTEGTIME_350: Serial.println(350); break;
    case LTR3XX_INTEGTIME_400: Serial.println(400); break;
  }

  ltr.setMeasurementRate(LTR3XX_MEASRATE_200);
  Serial.print("Measurement Rate (ms): ");
  switch (ltr.getMeasurementRate()) {
    case LTR3XX_MEASRATE_50: Serial.println(50); break;
    case LTR3XX_MEASRATE_100: Serial.println(100); break;
    case LTR3XX_MEASRATE_200: Serial.println(200); break;
    case LTR3XX_MEASRATE_500: Serial.println(500); break;
    case LTR3XX_MEASRATE_1000: Serial.println(1000); break;
    case LTR3XX_MEASRATE_2000: Serial.println(2000); break;
  }
}

void loop() {
  bool valid;
  uint16_t visible_plus_ir, infrared;

  if (ltr.newDataAvailable()) {
    valid = ltr.readBothChannels(visible_plus_ir, infrared);
    if (valid) {
      Serial.print("CH0 Visible + IR: ");
      Serial.print(visible_plus_ir);
      Serial.print("\t\tCH1 Infrared: ");
      Serial.println(infrared);
    }
  }

  delay(100);
}

由于我们使用的是Qwiic的连接方式，所以根据官方文档得知，如果我们使用Qwiic的方式连接的话，我们并不能直接使用原理图上的IIC0，我们需要使用IIC1

因此，我们需要做一点小小的修改就像官方文档中提到的示例一样

修改后的代码如下所示，主要变更在LTR begin的时候传递了IIC总线1作为数据总线

/***************************************************
  This is an example for the LTR329 light sensor that reads both channels
  and demonstrates how to set gain and check data validity

  Designed specifically to work with the LTR-329 light sensor from Adafruit
  ----> https://www.adafruit.com/product/5591

  These sensors use I2C to communicate, 2 pins are required to
  interface
 ****************************************************/

#include "Adafruit_LTR329_LTR303.h"

Adafruit_LTR329 ltr = Adafruit_LTR329();

void setup() {
  Serial.begin(115200);
  Serial.println("Adafruit LTR-329 advanced test");

  if ( ! ltr.begin(&Wire1) ) {
    Serial.println("Couldn't find LTR sensor!");
    while (1) delay(10);
  }
  Serial.println("Found LTR sensor!");

  ltr.setGain(LTR3XX_GAIN_2);
  Serial.print("Gain : ");
  switch (ltr.getGain()) {
    case LTR3XX_GAIN_1: Serial.println(1); break;
    case LTR3XX_GAIN_2: Serial.println(2); break;
    case LTR3XX_GAIN_4: Serial.println(4); break;
    case LTR3XX_GAIN_8: Serial.println(8); break;
    case LTR3XX_GAIN_48: Serial.println(48); break;
    case LTR3XX_GAIN_96: Serial.println(96); break;
  }

  ltr.setIntegrationTime(LTR3XX_INTEGTIME_100);
  Serial.print("Integration Time (ms): ");
  switch (ltr.getIntegrationTime()) {
    case LTR3XX_INTEGTIME_50: Serial.println(50); break;
    case LTR3XX_INTEGTIME_100: Serial.println(100); break;
    case LTR3XX_INTEGTIME_150: Serial.println(150); break;
    case LTR3XX_INTEGTIME_200: Serial.println(200); break;
    case LTR3XX_INTEGTIME_250: Serial.println(250); break;
    case LTR3XX_INTEGTIME_300: Serial.println(300); break;
    case LTR3XX_INTEGTIME_350: Serial.println(350); break;
    case LTR3XX_INTEGTIME_400: Serial.println(400); break;
  }

  ltr.setMeasurementRate(LTR3XX_MEASRATE_200);
  Serial.print("Measurement Rate (ms): ");
  switch (ltr.getMeasurementRate()) {
    case LTR3XX_MEASRATE_50: Serial.println(50); break;
    case LTR3XX_MEASRATE_100: Serial.println(100); break;
    case LTR3XX_MEASRATE_200: Serial.println(200); break;
    case LTR3XX_MEASRATE_500: Serial.println(500); break;
    case LTR3XX_MEASRATE_1000: Serial.println(1000); break;
    case LTR3XX_MEASRATE_2000: Serial.println(2000); break;
  }
}

void loop() {
  bool valid;
  uint16_t visible_plus_ir, infrared;

  if (ltr.newDataAvailable()) {
    valid = ltr.readBothChannels(visible_plus_ir, infrared);
    if (valid) {
      Serial.print("CH0 Visible + IR: ");
      Serial.print(visible_plus_ir);
      Serial.print("\t\tCH1 Infrared: ");
      Serial.println(infrared);
    }
  }

  delay(100);
}

将程序烧录到R4中之后，我们打开串口助手便可以看到如下输出

那么现在第一步已经完成了。接下来我们来配置Ha的实体

2- 配置HA实体

HA实体的配置主要是涉及到HA容器内的configuration.yml 根据官方文档得知我们可以配置一个如下的光照和举例的传感器

然后我们在HA的Web页面中重新加载一下配置信息

此时我们只需要向名称为 lux的主题内发送json数据即可

如下消息格式

{"psData":143,"brightness":117.2}

此时我们第二部分完成

3 - 将数据上传到HA

由于我们上一个章节已经成功的连接到了WIFI 并且使用MQTT发送了数据，我们可以整合上一节的代码。主要的逻辑就是初始化WIFI连接并且连接到MQTT服务器。当获取到光照数据的时候结合Arduino的json库将数据序列化成JSON数据然后发送的MQTT服务器

代码如下

/***************************************************
  This is an example for the LTR329 light sensor that reads both channels
  and demonstrates how to set gain and check data validity

  Designed specifically to work with the LTR-329 light sensor from Adafruit
  ----> https://www.adafruit.com/product/5591

  These sensors use I2C to communicate, 2 pins are required to
  interface
 ****************************************************/

#include "Adafruit_LTR329_LTR303.h"
#include <ArduinoMqttClient.h>
#include <WiFiS3.h>
#include <WiFiClient.h>
#include <Arduino_JSON.h>
Adafruit_LTR329 ltr = Adafruit_LTR329();

char ssid[] = "ImmortalWrt";        
char pass[] = "mazha1997";  
int status = WL_IDLE_STATUS;   

const char broker[] = "192.168.1.113";
int        port     = 1883;
const char command_topic[]  = "lux";

WiFiClient wifiClient;
MqttClient mqttClient(wifiClient);

JSONVar dataObj;

void setup() {
  Serial.begin(115200);
  Serial.println("Adafruit LTR-329 advanced test");


  String fv = WiFi.firmwareVersion();
  if (fv < WIFI_FIRMWARE_LATEST_VERSION) {
    Serial.println("Please upgrade the firmware");
  }

  // attempt to connect to WiFi network:
  while (status != WL_CONNECTED) {
    Serial.print("Attempting to connect to WPA SSID: ");
    Serial.println(ssid);
    // Connect to WPA/WPA2 network:
    status = WiFi.begin(ssid, pass);

    // wait 10 seconds for connection:
    delay(10000);
  }

  Serial.print("You're connected to the network");
  printCurrentNet();
  printWifiData();
  if (!mqttClient.connect(broker, port)) {
    Serial.print("MQTT connection failed! Error code = ");
    Serial.println(mqttClient.connectError());
    while (1);
  }
  Serial.println("You are connected to MQTT");
  if (WiFi.status() == WL_NO_MODULE) {
    Serial.println("Communication with WiFi module failed!");
    // don't continue
    while (true);
  }

  if ( ! ltr.begin(&Wire1) ) {
    Serial.println("Couldn't find LTR sensor!");
    while (1) delay(10);
  }
  Serial.println("Found LTR sensor!");

  ltr.setGain(LTR3XX_GAIN_2);
  Serial.print("Gain : ");
  switch (ltr.getGain()) {
    case LTR3XX_GAIN_1: Serial.println(1); break;
    case LTR3XX_GAIN_2: Serial.println(2); break;
    case LTR3XX_GAIN_4: Serial.println(4); break;
    case LTR3XX_GAIN_8: Serial.println(8); break;
    case LTR3XX_GAIN_48: Serial.println(48); break;
    case LTR3XX_GAIN_96: Serial.println(96); break;
  }

  ltr.setIntegrationTime(LTR3XX_INTEGTIME_100);
  Serial.print("Integration Time (ms): ");
  switch (ltr.getIntegrationTime()) {
    case LTR3XX_INTEGTIME_50: Serial.println(50); break;
    case LTR3XX_INTEGTIME_100: Serial.println(100); break;
    case LTR3XX_INTEGTIME_150: Serial.println(150); break;
    case LTR3XX_INTEGTIME_200: Serial.println(200); break;
    case LTR3XX_INTEGTIME_250: Serial.println(250); break;
    case LTR3XX_INTEGTIME_300: Serial.println(300); break;
    case LTR3XX_INTEGTIME_350: Serial.println(350); break;
    case LTR3XX_INTEGTIME_400: Serial.println(400); break;
  }

  ltr.setMeasurementRate(LTR3XX_MEASRATE_200);
  Serial.print("Measurement Rate (ms): ");
  switch (ltr.getMeasurementRate()) {
    case LTR3XX_MEASRATE_50: Serial.println(50); break;
    case LTR3XX_MEASRATE_100: Serial.println(100); break;
    case LTR3XX_MEASRATE_200: Serial.println(200); break;
    case LTR3XX_MEASRATE_500: Serial.println(500); break;
    case LTR3XX_MEASRATE_1000: Serial.println(1000); break;
    case LTR3XX_MEASRATE_2000: Serial.println(2000); break;
  }
}


void printCurrentNet() {
  // print the SSID of the network you're attached to:
  Serial.print("SSID: ");
  Serial.println(WiFi.SSID());

  // print the MAC address of the router you're attached to:
  byte bssid[6];
  WiFi.BSSID(bssid);
  Serial.print("BSSID: ");
  printMacAddress(bssid);

  // print the received signal strength:
  long rssi = WiFi.RSSI();
  Serial.print("signal strength (RSSI):");
  Serial.println(rssi);

  // print the encryption type:
  byte encryption = WiFi.encryptionType();
  Serial.print("Encryption Type:");
  Serial.println(encryption, HEX);
  Serial.println();
}

void printMacAddress(byte mac[]) {
  for (int i = 0; i < 6; i++) {
    if (i > 0) {
      Serial.print(":");
    }
    if (mac[i] < 16) {
      Serial.print("0");
    }
    Serial.print(mac[i], HEX);
  }
  Serial.println();
}

void printWifiData() {
  // print your board's IP address:
  IPAddress ip = WiFi.localIP();
  Serial.print("IP Address: ");
  
  Serial.println(ip);
  // print your MAC address:
  byte mac[6];
  WiFi.macAddress(mac);
  Serial.print("MAC address: ");
  printMacAddress(mac);
}


void loop() {
  bool valid;
  uint16_t visible_plus_ir, infrared;
  if (ltr.newDataAvailable()) {
    valid = ltr.readBothChannels(visible_plus_ir, infrared);
    if (valid) {
      dataObj["brightness"] = visible_plus_ir;
      dataObj["psData"] = infrared;
      String jsonString = JSON.stringify(dataObj);
      mqttClient.beginMessage(command_topic);
      mqttClient.print(jsonString);
      mqttClient.endMessage();
    }
  }

  delay(500);
}

此时便可以在HA的主界面中编辑Dashboard 在实体中搜索配置的实体的名称，如下图所示（成功的配置了光照传感器）

当点击传感器名称的时候还可以查看到历史数据

代码如下所示

20240908213702182.ino (4.94 KB, 下载次数: 2)

【Follow me第二季第2期】+ 扩展任务一 使用LTR-329 环境光传感器，上传到HA并显示 [复制链接]

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【Follow me第二季第2期】+ 扩展任务一使用LTR-329 环境光传感器，上传到HA并显示 [复制链接]