Android #35 使用 MQTT 無線搖控 ESP32-CAM 模組

 大家好, 歡迎收看本週的Weekend project with Stonez56。

本周要進行的是 Arduino 第35集，"使用 MQTT 無線搖控 ESP32-CAM 模組”。這個是一個專門為初學者來開發的一個系列, 所以會講的比較詳細, 相信各位只要仔細收看內容並進行實作, 一定會收獲滿滿滿。好, 那我們就開始吧今天的練習吧~


!!! ESP32-CAM streaming 的程式是由這裡取得:
https://github.com/wjsanek/wjsanek/blob/main/Working_ESP32_CameraWebServer_V2_with_OTA.zip

 這位高手把一大堆沒有用到的ESP32-CAM的程式移除, 所以我才有機會把程式寫成可以OTA.


在 VScode 裡, ESP32-CAM 的模組, 設定如下:

Board: ESP32 Wrover Module

  • Upload Speed: 115200

  • Flash Frequency: 80MHz

  • Flash Mode: QIO

  • Partition Scheme: Minimal SPIFFS (1.9MB APP with OTA/190KB SPIFFS)


本次學習的目標是能遠端遙控 ESP32-CAM, 所以會用到下列的程式

  • ESP32-CAM - Camera 伺服器 串流影像

  • Servo - 控制 SG90 伺服器擺動

  • ESPAsyncWifimanager - 隨時改變 Wi-Fi 設定

  • AsyncElegantOTA - FOTA - 隨時隨地的更新 firmware

  • MQTT - PubSubClient - 由ESP32-CAM 收送訊息

  • Paho MQTT Javascript client - 由瀏覽器 收送訊息 / HTML 編寫



本專案會用到下列的電子元件:

 

  • ESP32-CAM * 1

  • 天線 * 1

  • SG90 Servo 伺服器 * 2 - 上下 & 左右擺動各一個

  • 1000uf 電容一顆 * 1 - 過濾影像的水波紋

  • 杜邦線 * 4 - Power, GND, IO12, IO13




參考資料:


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