Questions tagged [esp32-cam]
The esp32-cam tag has no summary.
19 questions
-2
votes
0
answers
37
views
Best Arduino Components/Sensors that is best for counting and classifying small object such as grains [closed]
I am about to conduct my thesis study entitled "Design and Development of an Arduino-Based Automated Milled Rice Counter and Classifier" in which we are about to count and classify these ...
0
votes
1
answer
489
views
esp32 cam is showing cam_hal : dma overflow
.xclk_freq_hz = 20000000,
.ledc_timer = LEDC_TIMER_0,
.ledc_channel = LEDC_CHANNEL_0,
.pixel_format = PIXFORMAT_JPEG, //YUV422,GRAYSCALE,RGB565,JPEG
.frame_size = FRAMESIZE_QVGA, //QQVGA-...
0
votes
1
answer
99
views
Problems to start OV5640 Camera in a ESP32-CAM board
This is the first time I write on this site, so let's go to the question but first a little bit of context:
I'm working in a esp32-cam board. I want to use a OV5640 camera to stream video but the ...
0
votes
1
answer
86
views
How to receive data from an Rasberry Pi on ESP32-Cam?
My use case is an ESP32-cam that serves two purposes:
HTTP feed (accessed by a Raspberry Pi 5 which processes stream and provides a response)
Servo Motor microcontroller: Receives response from ...
1
vote
1
answer
107
views
Connect ESP32-CAM to L293D
Disclaimer: I'm a programmer, not an electronics expert. I built this car using an Arduino Uno, and now I want to add a camera to it. I’ve tried researching online, but I couldn’t find much ...
1
vote
1
answer
494
views
ESP32-CAM infinite boot loop
I am currently using an ESP32-CAM with an OV5460 camera, and I am interfacing it with my computer using an Arduino Nano. I am trying to run a camera web server using the Arduino example code. I have ...
2
votes
1
answer
4k
views
Impossible to install the esp_camera library
I cannot install the esp_camera library. When I try to add the .zip, I get "does not contain a valid library.
Everything about this ESP-32 Cam seems to rely on that library, and I can't find a ...
0
votes
1
answer
384
views
ESP32CAM fails to initialise camera with error 0xffffff
There is a simple PlatformIO sketch (arduino format) that has the following main.cpp file:
#include <Arduino.h>
#include "esp_camera.h"
#include "camera_pins.h"
#define ...
0
votes
0
answers
252
views
How can I save an image from the ESP32-CAM to a separate SD card?
For a project, I need to take a picture with the ESP32-CAM, save it to an SD card, and then have the Arduino UNO access the image. I have the ESP32-CAM with OV2640 connected to the ESP32-CAM-MB, which ...
1
vote
0
answers
69
views
ESP32 can't handle trigger signal to take photo
The problem is, the following code doesn't work. If I am not using the if to check if there is a signal at GPIO 16, then the code is working. I'm using a ESP32-CAM module. It doesn't save a picture to ...
-1
votes
1
answer
2k
views
Using ESP32CAM board but no face is enrolled
I was working on a project to use the ESP32CAM board to detect faces and open some sort of lock. The program can detect the face using the yellow box that shows up as you can see from the following ...
0
votes
1
answer
278
views
Compressing grayscale image with ESP32-S3-WROOM Freenove
I have a ESP32-S3-WROOM module by Freenove which has a camera and a micro SD card module. I can take a snapshot as a PIXELFORMAT_JPEG photo.
However, when I change the pixelformat to "...
-1
votes
1
answer
391
views
ESP32-CAM camera: SD help
I'm struggling with making a simple sketch to take a photo with an ESP32-CAM and save to an SD card.
I have found a bunch of examples that that do what I want, but basically they just take a photo and ...
2
votes
2
answers
2k
views
Does ESP32 can support WIFIDirect
I would like to establish a simple P2P connection between an ESP32 and an Android device without the use of an access point. I should be able to send and receive data from the ESP32 through the ...
1
vote
0
answers
1k
views
How can I access ESP32-CAM from outside local network other than port forwarding?
I have a ESP32-CAM AIThinker which I have programmed using Arduino IDE to stream video. I have another board ESP8266-12e that I am using on a MQTT system that turns on and off the ESP32 as well as ...