## 南藝工作坊: 那些應該知道有關 Arduino 的基礎知識 <!-- Put the link to this slide here so people can follow --> ##### Slide: https://hackmd.io/@J-T-LEE/TNNUAWorkShop --- ### Who am I? - LEE JEN TUN 李仁敦 - Japan Advanced Insitutite of Science and Technology Knowledge Science Ph,D Student --- ### 認識今天的主角 Wemos D1 mini  ###### [圖片出處](https://lh6.googleusercontent.com/1HNuR1DSxBv0rdsqe6orNEGFBKcSty-FdAHWcSTm9kQ-VPnEsThmpWEsfn5gzTLsLkf0xKzhnp5GoxAIA4KeZmcC-TPBUoDKaB1toKvXCaIHFMr8RUDkVLCj1TFpEMB3A9pC--1w) <!-- 哪些腳位是我們一開始需要知道的？ 像是 VCC GND Digital Pin, Analog Pin, I2C SDK & SCL 等 都是常用的腳位--> --- ### 常見腳位 | Pin Name | Description | | ------------- |:--------:| | 電壓(VCC) | 3.3v or 5v | | 對地腳(GND) | 接地腳 | | 數位IO腳(D0~Dxx) | 針對數位訊號 | | 類比IO腳(A0~Axx) | 針對類比訊號 | | I2C(SDA & SCL) | I2C 通訊 | | Uart(TX & RX) | Uart 通訊 | <!-- --> --- ### 數位訊號形式的感測器 以觸碰感測器為例  ###### [圖片出處](https://embetronicx.com/wp-content/uploads/2018/04/touch-sensor-interfacing-pinout.png) --- ### 類比訊號形式的感測器 以壓力感測器為例  ###### [圖片出處](http://4.bp.blogspot.com/-e-xKYJaq23g/Uu3Ouy1H4iI/AAAAAAAABaY/JahUNBh3E5Y/s1600/FSR.png) ----  ###### [圖片出處](https://i1.wp.com/solarduino.com/wp-content/uploads/2020/06/multiplexer3-1.png?fit=1370%2C752&ssl=1) --- ### I2C通訊的感測器 以慣性感測器為例  ###### [圖片出處](https://johnny-five.readthedocs.io/en/latest/breadboard/imu-bno055.png) ----  ###### [圖片出處](https://i.imgur.com/Vsf9Ca7.png) ----  ###### [圖片出處](https://www.electronicshub.org/wp-content/uploads/2021/02/NodeMCU-Pinout-Image.jpg) ----  ###### [圖片出處](https://linuxhint.com/wp-content/uploads/2022/05/word-image-338.png) --- ### TX RX 通訊  ###### [圖片出處](https://forum.fritzing.org/uploads/default/original/2X/6/6ded765ba20db159ee16901b545e6ce7b72f8421.png) --- ### 麵包版介紹  ###### [圖片出處](https://www.digikey.com/maker-media/9d540a8e-0230-4404-bf76-36f19ecac057) ----  ###### [圖片出處](https://i.imgur.com/qiGwL6H.png) --- #### 線頭的種類 ##### 杜邦線  ---- #### 快速接頭  --- ### 認識簡單電路  ###### [圖片出處](https://predictabledesigns.com/wp-content/uploads/2018/10/electronic-circuit-voltage-source-resistor-le.jpeg) --- ### 認識Arduino IDE  <!-- 講解順序 1. 驗證程式碼 2. 如何上傳 3. 如何選擇板子 4. 如何確認Comport 5. 如何導入庫 6. 如何閱讀IDE的報錯訊息 以Serial begin 為例 --> ###### [圖片出處](https://static.javatpoint.com/tutorial/arduino/images/arduino-ide.png) --- ### 認識 PlateFormIO  --- ### 看看其他人的作品 <center class="half"> <img src="https://prod.hackster-cdn.online/assets/hackster_avnet_logo_blue-5e47e3321ed9ae959a2668e6af7e176dda606786d7a0d2c968300b642b2c8756.png" width="200"/> &ensp;&ensp;&ensp; <img src="https://hackaday.io/img/hackaday-logo.svg" width="200"/> &ensp;&ensp;&ensp; <img src="https://i.imgur.com/WYrVe1W.png" width="200"/> &ensp;&ensp;&ensp; <img src="https://www.instructables.com/assets/img/instructables-logo-v2.png" width="80"/> </center> ----  [hackster.io](https://www.hackster.io/arduino)  [Hackaday.io](https://hackaday.io/)  [Project Hub](https://create.arduino.cc/projecthub/projects/tags/arduino)  [Instructables](https://www.instructables.com/circuits/arduino/projects/) --- ### Serial Monitor ###### 序列監視器是常用來Debugging 或顯示程式的數據或值。 ###### 需要將 Arduino 連接到您的電腦才能使用序列監視器。  ``` void setup() { Serial.begin(9600); } void loop() { Serial.print("Hello World"); delay(1000); } ``` ---- ###### 在這裡可以看到如何將值寫入序列監視器。 這可以是來自感測器的值，例如溫度感測器 ``` int myValue = 0; void setup() { Serial.begin(9600); } void loop() { myValue = random(100); Serial.print("The Value is: "); Serial.println(myValue); delay(1000); } ``` --- ### 回想你們學過的程式碼 ``` Void setup() { } Void loop() { } ``` --- ### Creating and Using Functions ``` int z; void setup() { Serial.begin(9600); } void loop() { z = calculate(2,3); Serial.print("The area is: "); Serial.println(z); delay(1000); } float calculate(int x, int y) { return (x + y); } ``` ---- ### 練習寫出求圓面積的程式 ###### 半徑(r) = 6, 圓周率(pi) = 3.14 ``` void setup() { float area; Serial.begin(9600); // calculate the area of a circle with radius of 6 float r=6; area = CircleArea(r); Serial.print("Area of circle is: "); // print area to 4 decimal places Serial.println(area, 4); } void loop() { } // calculate the area of a circle float CircleArea(float radius) { float result; const float pi = 3.14; result = pi * radius * radius; return result; } ``` --- ### 迴圈的概念 ``` for(int i=0; i<100; i++){ do something } ``` ---- ---- ### 判別式的概念 ``` 什麼是 ==, &&, ||, != if( 條件式一 ) { 如果條件式一成立時做什麼... } else if( 條件式二 ) { 當條件式一不成立的情況下，如果條件式二成立時做什麼... } else if( 條件式三 ) { 當條件式一、二不成立的情況下，如果條件式三成立時做什麼... } else { 當以上所有if都不成立時做什麼... } ``` --- ### 試著控制板子上的LED燈吧！ ``` int ledPin = 13; //設定第13pin為接LED燈的pin腳 void setup() { pinMode(ledPin, OUTPUT); //設定pin腳模式為輸出 } void loop() { digitalWrite(ledPin, HIGH); //給pin腳高電壓 (LED通電就亮) delay(1000); //延遲1秒鐘(1000毫秒) digitalWrite(ledPin, LOW); //給pin腳低電壓 (LED不通電就暗) delay(1000); //延遲1秒鐘(1000毫秒) } ``` --- ### 使用函示控制LED燈  [TinkerCAD](https://www.tinkercad.com/things/0wWwSB3jtgt-editing-components/editel?lessonid=EFU6PEHIXGFUR1J&projectid=OGK4Q7VL20FZRV9&collectionid=O0K87SQL1W5N4P2&tenant=circuits#/lesson-viewer) ---- ``` int led_red = 3; // the red LED is connected to Pin 3 of the Arduino int led_yellow = 5; // the yellow LED is connected to Pin 5 of the Arduino int led_green = 6; // the greed LED is connected to Pin 6 of the Arduino void setup() { // set up all the LEDs as OUTPUT Serial.begin(9600); pinMode(led_red, OUTPUT); pinMode(led_yellow, OUTPUT); pinMode(led_green, OUTPUT); } void loop() { if(Serial.available()){ char readChar = Serial.read(); Serial.println(readChar); if(readChar == 'a' ){ digitalWrite(led_red, HIGH); for (int i = 0; i <= 255; i++){ Serial.println(i); analogWrite(led_yellow, i); delay(50); } } else if(readChar == 'c'){ digitalWrite(led_red, LOW); digitalWrite(led_yellow, LOW); digitalWrite(led_green, LOW); } else{ digitalWrite(led_green, HIGH); } readChar = ' '; } } ``` --- ### 控制數位式溫度感測器 ``` int digitalPin = D7; // KY-028 digital interface int analogPin = A0; // KY-028 analog interface int digitalVal; // digital readings int analogVal; //analog readings void setup() { Serial.begin(9600); } void loop() { // Read the analog interface analogVal = analogRead(analogPin); Serial.println(analogVal); // print analog value to serial delay(100); } ``` --- ### Thank you! :sheep: You can find me on - GitHub : https://github.com/bmpsst511 - or email me : bmpsst511@gmail.com