Keep learning Keep trying & JUST DO IT!: Arduino WS2812B

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2022年3月10日星期四

WS2812B Timer Module

這陣子一直想買個時鐘,但是市面上又沒有自己喜歡的,於是自己來做一個，花了快一個月終於完成,話不多說，上成品~

這次會分享功能評估->電路設計->外殼製作->程式碼->組裝測試

功能評估

1. 想要顯示時間，顯示時跟分即可
2. 可以改變顏色
3. 不希望太多腳

4.可以自動校正時間

LED選用思考：

如果是使用傳統的4PIN RGB LED 可能會需要寫一堆腳位定及拉一堆電路，是否有串列式的?

後來我想到之前曾經玩過的WS2812B 可以滿足我的需求!!就決定是它了!

MCU 選用思考：

自動校正時間?需要可以連到網路，那需要有網路功能的晶片，但是又不想外掛網路模組，那就選擇ESP32！

(做專題前需要評估一下自己想要的功能與效果-＞可以參考這篇)

電路設計

既然要拿WS2812B設計時鐘，就要先了解一下元件的規格

尺寸

腳位功能

電器特性

為電路設計軟體建立WS2812B的原件

設計電路

電路板設計PCBLAYOUT

發包送洗等待~

外殼設計

在等待電路板回來的過程，可以先畫一下3D外殼，減少等待時間

(對孔用的)

(含外殼鎖孔)

(檔光片)

3D外殼設計完後就是開3D列印機給它印下去啦~等待等待😎😎

印完的成品
(對孔用的)

(含外殼鎖孔-外面)

(外殼鎖孔-裡面)

(檔光片)

撰寫程式碼

這時候呢~先拿手邊現有的WS2812B燈條進行測試，參考這篇測試

https://850121.blogspot.com/2022/03/arduino-ws2812b.html

電路板焊接

PCB板回來後先焊接元件並測試（這個時候直接使用寫好的範例驗證功能）這個時候也是考驗耐心啊，附上影片及照片

（焊接過程）

電路功能驗證

焊接完成後接著進行電路驗證，這是決定這批電路板是生是死啊😂😂
上影片！
燒錄測試程式碼後幸好可以動！！！👏👏👏😍😍😍

組裝

接下來將3D外殼及電路組合在一起，這個時候會發現，3D列印的外殼會有些許公差，需要進行反覆微調並列印，直到契合

（組合完成圖-1）

（組合完成圖-2）

（組合完成圖-3）

成品展示

ESP32 NTP 時鐘文章

程式碼

參考資料

https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf

https://850121.blogspot.com/2022/03/arduino-ws2812b.html

https://github.com/kitesurfer1404/WS2812FX

2022年3月7日星期一

Arduino WS2812B

最近想說來玩一下七彩的LED燈，但是又不想要使用傳統的RGB LED燈，主要原因有會增加許多IO控制的腳位，而WS2812B可以三條線(電源正負及一條訊號就解決了)，而且可以串接～

先上結果影片

目標

透過城市控WS2812BLED 的顏色及狀態

材料

ws2812b 燈條
Arduino NANO 一片
NANO 擴展板
杜邦縣若干條

開發環境

arduino IDE

步驟

1.軟體安裝軟體連結
2.電路接線

(接線完成)

3.安裝WS2812X library

輸入WS2812F

4.燒錄範例程式碼測試
依照腳位與實際LED顆數修改，像我的燈條只有4顆，那就將範例原本的13改成4
(還未修改前是13)

(修改後是4)

5. 當你看到所有的LED都會亮了，恭喜你／你成功了

如果遇到問題，可能原因在下面

1.USB PROT供電不足,有時候可能會導致燒錄失敗

解決方式有兩個
1.先拔掉WS2812B接入電源線,再進行燒錄,完成後再把電接回去
2.將燈條的公電部分額外供電並共地(雖然目前的LED數不多,但以後串接很多顆後,一定需要)

2. 接線接反

顏色都接對啊但是燈不亮-> 那有可能訊號的腳位接錯了，注意看下圖

如果一端不亮再換另一端

參考資料

https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf

https://github.com/kitesurfer1404/WS2812FX

2022年3月6日星期日

ESP32 NTP Timer with WS2812B

之前都是透過RTC 時鐘去設定時間後，再從RTC時鐘模組去取得時間，這次為了減少模組的使用，我們透過連線有線網路後去取得NTP時鐘，理由嗎，減少時間誤差，有些時候運作久了時間就會跑掉，話不多說Let's start!

前置作業

一、準備材料
開發板：ESP32 NodeMCU
模　組：WS2812B 時鐘模組(文章連結)

開發環境
Arduino IDE
Library WS2812FX.h 連結 https://github.com/kitesurfer1404/WS2812FX

二、電路接線

步驟說明

步驟一、電路接線
請依照電路接線完成
步驟二、安裝WS2812FX Library
參考這篇連結 https://850121.blogspot.com/2022/03/arduino-ws2812b.html
步驟三、複製程式
Git 連結 https://github.com/windyman24/ESP32-NTP-Timer-with-WS2812B
步驟四、編譯並上傳

#include "WS2812FX.h"
#include "WiFi.h"
#include "time.h"
const char* ssid = "Your Wifi SSID";
const char* password = "Your Wifi PASSWORD";
//NTP Time
int timezone = 8 * 3600;//Set Time zone ,In Taiwan is +8, so Time zone is 8 * 3600
int dst = 0;
time_t now = time(nullptr);
struct tm* p_tm = localtime(&now);
//WS2812B define
#define LED_COUNT 30
#define LED_PIN 4
#define OFF 0x000000
#define TIMER_MS 5000

WS2812FX ws2812fx = WS2812FX(LED_COUNT, LED_PIN, NEO_RGB + NEO_KHZ800);

unsigned long LightColor = 0x006633;
int Def_min = 0;
int Def_Second = 0;
int Second = 0;
int minu = 0;
int hour = 0;

//Set blink time without delay
unsigned long previousMillis = 0;
const long interval = 1000;
int DotState = false;// Dot State

bool GotTime = false;//Got NTP TIME Flag
/*
 * Control Dot ON or OFF
 */
void ShowDots(int EN)
{
  if (EN == true)
  {
    ws2812fx.setPixelColor(14, LightColor);
    ws2812fx.setPixelColor(15, LightColor);
  }
  else
  {
    ws2812fx.setPixelColor(14, OFF);
    ws2812fx.setPixelColor(15, OFF);
  }
}
/*
 * Set Number,Input which Seg and its number
 */
void ShowNumber(int SegNum, int num)
{
  int ShowSegNum = SegNum * 7;
  if (SegNum > 1)ShowSegNum += 2;
  switch (num)
  {
    case 0:
      ws2812fx.setPixelColor(0 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(1 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(2 + ShowSegNum, OFF);
      ws2812fx.setPixelColor(3 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(4 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(5 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(6 + ShowSegNum, LightColor);
      break;
    case 1:
      ws2812fx.setPixelColor(0 + ShowSegNum, OFF);
      ws2812fx.setPixelColor(1 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(2 + ShowSegNum, OFF);
      ws2812fx.setPixelColor(3 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(4 + ShowSegNum, OFF);
      ws2812fx.setPixelColor(5 + ShowSegNum, OFF);
      ws2812fx.setPixelColor(6 + ShowSegNum, OFF);
      break;
    case 2:
      ws2812fx.setPixelColor(0 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(1 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(2 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(3 + ShowSegNum, OFF);
      ws2812fx.setPixelColor(4 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(5 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(6 + ShowSegNum, OFF);
      break;
    case 3:
      ws2812fx.setPixelColor(0 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(1 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(2 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(3 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(4 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(5 + ShowSegNum, OFF);
      ws2812fx.setPixelColor(6 + ShowSegNum, OFF);
      break;
    case 4:
      ws2812fx.setPixelColor(0 + ShowSegNum, OFF);
      ws2812fx.setPixelColor(1 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(2 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(3 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(4 + ShowSegNum, OFF);
      ws2812fx.setPixelColor(5 + ShowSegNum, OFF);
      ws2812fx.setPixelColor(6 + ShowSegNum, LightColor);
      break;
    case 5:
      ws2812fx.setPixelColor(0 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(1 + ShowSegNum, OFF);
      ws2812fx.setPixelColor(2 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(3 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(4 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(5 + ShowSegNum, OFF);
      ws2812fx.setPixelColor(6 + ShowSegNum, LightColor);
      break;
    case 6:
      ws2812fx.setPixelColor(0 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(1 + ShowSegNum, OFF);
      ws2812fx.setPixelColor(2 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(3 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(4 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(5 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(6 + ShowSegNum, LightColor);
      break;
    case 7:
      ws2812fx.setPixelColor(0 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(1 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(2 + ShowSegNum, OFF);
      ws2812fx.setPixelColor(3 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(4 + ShowSegNum, OFF);
      ws2812fx.setPixelColor(5 + ShowSegNum, OFF);
      ws2812fx.setPixelColor(6 + ShowSegNum, OFF);
      break;
    case 8:
      ws2812fx.setPixelColor(0 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(1 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(2 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(3 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(4 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(5 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(6 + ShowSegNum, LightColor);
      break;
    case 9:
      ws2812fx.setPixelColor(0 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(1 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(2 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(3 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(4 + ShowSegNum, LightColor);
      ws2812fx.setPixelColor(5 + ShowSegNum, OFF);
      ws2812fx.setPixelColor(6 + ShowSegNum, LightColor);
      break;
  }
}
/*
 * Set hour and minute ,and set to Seg
 */
int TimeConvert(int hour, int minu)
{
  int hour_H = hour / 10;
  int hour_L = hour % 10;
  int min_H = minu / 10;
  int min_L = minu % 10;

  ShowNumber(3, hour_H);
  ShowNumber(2, hour_L);
  ShowNumber(1, min_H);
  ShowNumber(0, min_L);

  ws2812fx.show();
}
void setup() {

  Serial.begin(115200);
  //Wifi setting and connect
  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);
  while ( WiFi.status() != WL_CONNECTED ) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("Wifi Connected Success!");
  Serial.print("NodeMCU IP Address : ");
  Serial.println(WiFi.localIP() );
  
  
  ws2812fx.init();
  ws2812fx.setBrightness(1000);
  ws2812fx.setSpeed(SPEED_MIN);
  ws2812fx.setColor(LightColor);
  ws2812fx.setMode(FX_MODE_BREATH);
  ws2812fx.start();

  //Get the NTP time
  configTime(timezone, dst, "pool.ntp.org", "time.nist.gov");
  Serial.println("\nWaiting for Internet time");

  Def_Second = p_tm->tm_sec;
  Def_min = p_tm->tm_min;
  Serial.print("Def_Second:");
  Serial.println(Def_Second);
  Serial.print("Def_min:");
  Serial.println(p_tm->tm_min);

  while (!GotTime) {
    configTime(timezone, dst, "pool.ntp.org", "time.nist.gov");
    now = time(nullptr);
    p_tm = localtime(&now);
    Second = p_tm->tm_sec;
    minu = p_tm->tm_min;
    Serial.print("Second:");
    Serial.println(Second);
    Serial.print("min:");
    Serial.println(p_tm->tm_min);
    if (Def_min != minu)  GotTime = true;
    else Serial.print("*");
    demo();
  }
  
  Serial.println("\nTime response....OK");

  minu = p_tm->tm_min;
  hour = p_tm->tm_hour;
  Serial.print(hour);
  Serial.print(":");
  Serial.println(minu);
  TimeConvert(hour, minu);
}
/*
 * Use to reconnet the NTP time
 */
void CheckTime()
{
  configTime(timezone, dst, "pool.ntp.org", "time.nist.gov");
  now = time(nullptr);
  p_tm = localtime(&now);
  Second = p_tm->tm_sec;
  minu = p_tm->tm_min;
}
/*
 * Use to demo show 0~9
 */
void demo()
{
  for (int i = 0; i < 10; i++)
  {
    ShowNumber(0, i);
    ShowNumber(1, i);
    ShowNumber(2, i);
    ShowNumber(3, i);
    ws2812fx.show();
    delay(300);
  }
}

void loop() {
  unsigned long currentMillis = millis();
  if (currentMillis - previousMillis >= interval) {
    previousMillis = currentMillis;
    Second++;
    if (Second > 59)
    {
      minu++;
      Second = 0;
    }
    if (minu > 59)
    {
      hour++;
      minu = 0;
      CheckTime();//every hour regulate the time
    }
    if (hour > 23)
    {
      hour = 0;
      minu = 0;
    }
    TimeConvert(hour, minu);
    ShowDots(DotState = !DotState);
    ws2812fx.setColor(LightColor++);
  }  
  yield();
}

參考來源

https://randomnerdtutorials.com/esp32-date-time-ntp-client-server-arduino/

https://850121.blogspot.com/2022/03/arduino-ws2812b.html

https://github.com/windyman24/ESP32-NTP-Timer-with-WS2812B

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2022年3月10日星期四

WS2812B Timer Module

2022年3月7日星期一

Arduino WS2812B

2022年3月6日星期日

ESP32 NTP Timer with WS2812B

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