使用Arduino制造RGB_Matrix变色温度计
2025-04-161515
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本文介绍了如何使用Arduino和RGB矩阵制作一个变色温度计。首先需要下载DFRobot_RGBMatrix库和DHT库，然后配置硬件并编写代码。最终效果是通过RGB矩阵显示温度和湿度数据。适合电子项目爱好者尝试。
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首先，下载对应库 Arduino-librayrs-DFRobot_RGBMatrix.h Arduino-librarys-DHT.h注意：RGB Matrix要5V3A+电流 代码： /*! * @file testRGBMatrix.ino * @brief Run the routine to test the RGB LED Matrix Panel * @copyright Copyright (c) 2010 DFRobot Co.Ltd (http://www.dfrobot.com) * @license The MIT License (MIT) * @author [TangJie]](jie.tang@dfrobot.com) * @version V1.0.1 * @date 2022-03-23 * @url https://github.com/DFRobot/DFRobot_RGBMatrix */ /*! * @file testRGBMatrix.ino * @brief Run the routine to test the RGB LED Matrix Panel * @copyright Copyright (c) 2010 DFRobot Co.Ltd (http://www.dfrobot.com) * @license The MIT License (MIT) * @author [TangJie]](jie.tang@dfrobot.com) * @version V1.0.1 * @date 2022-03-23 * @url https://github.com/DFRobot/DFRobot_RGBMatrix */ #include <DFRobot_RGBMatrix.h> #include<DHT.h> #define data 4 #define code 11 #define OE 9 #define LAT 10 #define CLK 11 #define A A0 #define B A1 #define C A2 #define D A3 #define E A4 #define WIDTH 64 #define _HIGH 128 DFRobot_RGBMatrix matrix(A, B, C, D, E, CLK, LAT, OE, false, WIDTH, _HIGH); DHT dht2(data,code); void temp(float item, float trem) { // Use parentheses () instead of colon : if (item < 16) { matrix.setTextColor(matrix.Color333(0, 0, 255)); matrix.setCursor(12, 20); matrix.print(item); } else if (item < 30) { matrix.setTextColor(matrix.Color333(0, 255, 0)); matrix.setCursor(12, 20); matrix.print(item); } else { matrix.setTextColor(matrix.Color333(255, 0, 0)); matrix.setCursor(12, 20); matrix.print(item); } if (trem < 16) { matrix.setTextColor(matrix.Color333(0, 0, 255)); matrix.setCursor(12, 40); matrix.print(item); // Note: You're printing 'item' here, should it be 'trem'? } else if (trem < 30) { matrix.setTextColor(matrix.Color333(0, 255, 0)); matrix.setCursor(12, 40); matrix.print(item); // Note: You're printing 'item' here, should it be 'trem'? } else { matrix.setTextColor(matrix.Color333(255, 0, 0)); matrix.setCursor(12, 40); matrix.print(trem); } matrix.setCursor(12, 50); matrix.print('C'); matrix.setCursor(12, 30); matrix.print('%'); delay(1000); matrix.fillScreen(0); } void setup() { matrix.begin(); dht2.begin(); } void loop() { temp(dht2.readTemperature(),dht2.readHumidity()); } |
