ESP32CAM | ESP32 Camera code with additional features | Camera library
kandi X-RAY | ESP32CAM Summary
kandi X-RAY | ESP32CAM Summary
ESP32 Camera code with additional features
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Trending Discussions on ESP32CAM
QUESTION
Hi stackoverflow community,
I am trying to get a project leveraging Tensorflow Lite Micro to run on my ESP32 using PlatformIO and the Arduino framework (not ESP-IDF). Basically, I followed the guide in this medium post https://towardsdatascience.com/tensorflow-meet-the-esp32-3ac36d7f32c7 and then included everything in my already existing ESP32 project.
My project was compiling fine prior to the integration of Tensorflow Lite Micro but since integrating it, I am getting the following compile errors which seem to be related to the Tensorflow framework itself. When I uncomment everything related to Tensorflow, it compiles fine. But just when only including the following header files, it breaks:
...ANSWER
Answered 2022-Apr-05 at 03:13I resolved this for now by switching from the Arduino framework to the ESP-IDF framework. With this, it works like a charm.
QUESTION
I am trying to control ESP32CAM's I/O pins and also getting view from camera.
For this purpose, I tried to edit CameraWebServer example like this:
...ANSWER
Answered 2022-Mar-16 at 20:44I got some help and found this.
First of all, function is need to be defined in the app_httpd.cpp like this:
QUESTION
I am using esp32cam module with sdcard interface. The image I am able to save in the sdcard. This image opens in Windows PC. Next thing, I have done is to add http_server and in the html page I wanted to access the image from sdcard and using in src attrtibute of img tag. But the html does not display image and in the teraterm log it says it cannot find the file.
...ANSWER
Answered 2022-Jan-23 at 20:33You need to understand what you are doing before doing anything.
You are using the ESP32 HTTP Server API. Have you checked its documentation? It even has an example program.
Now, you have registered a handler for some URI. It probably looks something like this? :) (Or perhaps you changed the uri.)
QUESTION
How can I make the WifiManager library work on a ESP32 board? I'm using PlatformIO to develop my code.
Here are my imports:
...ANSWER
Answered 2021-Nov-16 at 18:22The latest release of WiFiManager library (0.16) is almost a year old and doesn't support ESP32.
You will need to install the library from Github to get ESP32 support.
In your platformio.ini replace
QUESTION
Tried to save the picture taken from ESP32Cam module, into SD Card as JPG file but it fail to open in Windows.
I have followed the code to take picture as is present at the below link: https://github.com/espressif/esp32-camera/blob/6a9497bbe909165663d958986e621e98dabcf994/examples/main/take_picture.c
After taking the picture I am converting it to jpg file using "frame2jpg". The camera used is OV2640. After conversion I am saving as.jpg file in SD Card. The SD card I moved to Windows PC and tried to open the saved .jpg file, but it does not open. It gives a message that file in not recognized.
Do I need to do more than just "frame2jpg" to convert it in right format?
[EDIT]: Moved "esp_camera_fb_return" after fclose.
ANSWER
Answered 2021-Sep-23 at 07:24Great, now the problem is much easier to debug. The data in the file is missing the JPEG header (ff d8 ff e0 00 10 4a 46 ...
) so it's probably the raw image data. If you look a the documentation for frame2jpg()
it shows that the buffer cnv_buf
will receive the JPEG image. That, however, is not what you're writing to the file. You're writing the original, unconverted frame with raw data:
QUESTION
Does anyone know what went wrong with my code? I'm trying to use Python to control esp32cam but I don't know what went wrong.
Sorry, I'm not sure if I'm posting this correctly as it's my first time asking! This is my code.
I changed the code after Dr.Casual helped (thanks alot btw!) but I'm still having errors. Updated the code.
...ANSWER
Answered 2021-Mar-25 at 16:21try this:
QUESTION
I have the following ESP32CAM sketch that should take a picture and post it to Clarify:
...ANSWER
Answered 2020-Dec-14 at 03:44This problem is not the formatting of your POST request, it's the fact that your authorization header is incorrect (as the error "Empty or malformed authorization header" indicates).
As the Clarafai documentation indicates, the Authorization header should be:
QUESTION
I am currently experimenting with the ESP32-CAM, which is a microcontroller with integrated camera that you can program through the Arduino IDE (with C++11). For capturing images with the cam, there is a library called 'esp32cam', which contains the function esp32cam::capture()
. This function apparently returns a variable with the type std::unique_ptr
. There is also an example sketch, which saves the returned frame in a local variable of the type auto
:
ANSWER
Answered 2020-Nov-22 at 22:57Try changing this:
QUESTION
I need the system to be secure.
I tired to encode the image with base64 and sending the string via MQTT to Iot Core. Then decode the string with a cloud function and finally storage the decoded image in Google Cloud Storage. The problem is the limited size of a message in MQTT.
Using a Cloud Function and then storage in Google Cloud Storage is not really secure, anyone could hit that url and I loos control of all the ESP32CAM comunication.
Am I missing something? is there a really secure way to send files to Google Cloud Storage from to IoT Core?
Thanks
...ANSWER
Answered 2020-Sep-29 at 17:27IoT Core should not be used to transfer big blobs.
However, you can take advantage of the secure connection between IoT Core and the device to send credentials to the device to access GCS securely.
Create a service account with write only access to your GCS bucket. Pass a key for that service account to the device through IoT Core(via configuration change, for example) The device then can use that key to connect securely to GCS and upload the image.
Depending on your preferences and the particular use case you can rotate the keys to access GCS whenever you want, or be as granular as you want with the permissions (one key for all the devices, one key per device, ...)
QUESTION
I've just recieved my very first esp32cam (AI THINKER) today and I was excited to test it, but I'm unable to upload any code to it. I'm always getting the following error:
...ANSWER
Answered 2020-May-16 at 15:14Pre-requisites for flashing:
- ArduinoIDE 1.8.12
- Core ESP32 1.04 (at time of writing)
- Select board AI Thinker Cam
- uplooad speed 921600
- freq 240Mhz
- flashfreq 80Mhz
- mode QIO if not working try DIO
- partition scheme default
- Serial monitor is closed
- NO hardware connected to the pins of the ESPcam
- Make sure the USB cable is a data cable and NO loading cable only
- check Windows device manager if programmer is shown and has max speed / 8n1 hardware
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