ESP32-CAM module not stable, black screen, disconnect all the time? (模組 影像串流一直斷線不穩 - 先檢查電阻)

I have bought two ESP32-CAM modules and doing a weekend project. However, the video streaming from these two ESP-32CAM modules are not stable and just constantly disconnect and get black screens after few minutes or even few seconds. It's quite annoying.  After search and search, I found this article...

https://randomnerdtutorials.com/esp32-cam-connect-external-antenna/

If you have encountered similar issues on your ESP32-CAM modules, remember to check the location of the resistors.

Left: External antenna resistor location

Right: Internal antenna resistor location

Photo from the refereed website above. Thanks!


Thanks for the vendor who sold me these two ESP32-CAM modules that put on these external antenna resistors for me....but at least tell me in advance.   I was debug here and there for few days until I found out why! ha..  😅



===中文版====

我買了2 個ESP32-CAM 模組, 搞不定影像串流一直斷線不穩定….直到看到這一篇!  找了外接天線來裝上後, 穩定多了, 不再斷線黑畫面. 

如果你也遇到同樣的問題, 記得先檢查 ESP32-CAM 上的天線電阻位置. 

https://randomnerdtutorials.com/esp32-cam-connect-external-antenna/

左側圖: 外接天線電阻
右側圖: 內接天線電阻


但這老闆也太好心了, 給我的 2個模組都焊上了外接天線電阻...也沒有告訴我,  於是我一直 debug … debug … 再debug 就這樣花了好久時間~~ 😅



Comments

Post a Comment

Popular posts from this blog

Arduino - DFPlayer Mini MP3 Module

Image
Arduino - Test DFPlayer Mini MP3 Module I found DFPlayer mini MP3 module on China auction site Taobao when I was looking for a MP3 player module for an Arduino projects.  This module is quite small and it only require few pins connections to Arduino and a speaker to work.  Looks really nice for my little project. Actually, the module is quite capable and complicated, if you were interested, please visit this  page . This tutorial here is just to show you how to connect DFPlayer module with Arduino and speaker and the Arduino sketch provided here just to play few sample sounds I collected from Internet. First, I recycled a 2W, 4Omh small speaker from this little music box. Material Needed: DFPlayer Mini module  Speaker - DFPlayer module support to to 3W SD card - 2GB ~ 32GB formatted with FAT or FAT32 MP3 / WAV - audio files Arduino mini Pro Few jump wires As you can see the illustration below I made in Power Point, hardware connection is quite simple (
Read more

Android control color RGB LED using HC-05 Bluetooth with Arduino (Part I)

Image
Android control color RGB LED using HC-05 Bluetooth with Arduino (Part I) Part II of this tutorial is here! Updated Sketch for ESP32 boards   https://stonez56.blogspot.com/2021/07/android-control-color-rgb-led-with.html This time, I am going to show you how to use Android phone to connect to HC-05 Bluetooth module and Arduino. Hardware needed: Arduino mini pro * 1 HC-05 Bluetooth module * 1 RGB LED * 2 Jump wires * 10 HC-05 Bluetooth Module wiring as follow: TX connect to Arduino Pin 11(RX) RX connect to Arduino Pin 12(TX) Remember to connect TX on the HC-05 to RX on the Arduino and RX on the HC-05 to TX on the Arduino, so Arduino can receive data correctly. VCC connect to 5V power GND connect to Ground RGB LED wiring as follow: Warning: You must connect Arduino mini pro, so your PWM Pin can control LED’s color! For example, Arduino mini pro only has 6 PWM pins and they are 3, 5, 6, 9, 10, and 11, other pins do not have PWM. Refer to Wikipedia for PWM R co
Read more

Arduino #27 AsyncWifimanager ElegantOTA ESP32 (WiFi Password Mgnt. + WiFi Firmware Update)

Image
*** If you are using the ESP8266, Please see this:  ESP8266 It would be great if every IoT device deployed with OTA capability with Wifimanager.  Then the IoT device would be able to change SSID & password without connecting the device to the computer to update SSID and password as well as FOTA at any time when you wanted. In this tutorial, let’s combine ESPAsync_Wifimanager and AsyncElegantOTA into a code base to become a handy tool for future IoT projects!  I have made WiFiManager & AsyncElegantOTA tutorial videos. If you don't know what they are and how they work for IoT projects, I strongly recommend you to watch these videos first. This time, I used ESPAsync_WiFiManager library, it's because WiFiManager does not work with AsyncElegnatOTA together. We have to change to ESPAsync_WiFiManager.  The main reason for this is that AsnycWiFiManager is using Asynchronous technology. Which means it can accept connections from different sources at the same time. So, while WiFi
Read more