kopia lustrzana https://github.com/alanesq/esp32cam-demo
Update README.md
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README.md
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README.md
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## ESP32Cam-demo sketch for use with the Arduino IDE
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I show in this sketch how to use the esp32cam as easily as possible. Everything I learn I try to add to it, please let me know if you have anything which you think can be added or changed to improve it - I am not a professional programmer so am sure there is plenty of room for improvement...
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<br>This sketch has got a bit larger than I anticipated but this is just because it now has so many individual demonstrations of ways to use the camera, I have tried to make each part as easy to follow as possible with lots of comments etc..
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<br>The camera is not great quality and very poor in low light conditions but it is very cheap (around £5 each if buying several) and I think has lots of potential for interesting applications.
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<br>This sketch is just a collection of all I have discovered/learned in the process of using them myself<br><br>
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I show in this sketch how to use the esp32cam as easily as possible. Everything I learn I try to add to it, please let me know if you have anything which you think can be added or changed to improve it - I am not a professional programmer so am sure there is plenty of room for improvement... <br>
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This sketch has got a bit larger than I anticipated but this is just because it now has so many individual demonstrations of ways to use the camera, I have tried to make each part as easy to follow as possible with lots of comments etc.. <br>
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The camera is not great quality and very poor in low light conditions but it is very cheap (around £5 each if buying several) and I think has lots of potential for interesting applications. <br>
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This sketch is just a collection of all I have discovered/learned in the process of using them myself<br>
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Note: This sketch now has the facility for OTA updates over the network, you need to copy the file ota.h in to your sketch folder and enable it in settings (#define ENABLE_OTA 1)
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<br><br>If you have issues with the camera keep stopping working etc. I have had a couple of these with dodgy camera modules so it is worth trying another one to see if this is the
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source of your problems.
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<br>
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If you have issues with the camera keep stopping working etc. I have had a couple of these with dodgy camera modules so it is worth trying another one to see if this is the
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source of your problems. <br>
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<table><tr>
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<td><img src="/images/root.png" /></td>
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@ -17,19 +18,19 @@ source of your problems.
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</tr></table>
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This can be used as a starting point sketch for projects using the ESP32cam development board, it has the following features.
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<br>-Web server with live video streaming and control buttons
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<br>-SD card support (using 1-bit mode - gpio pins are usually 2, 4, 12 & 13 but using 1bit mode only uses pin 2) - I have heard there may be problems reading the sd card, I have only used it to write files myself?
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<br>-Stores captured image on sd-card or in spiffs if no sd card is present
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<br>-IO pins available for general use are 12 and 13 (12 must not be pulled high at boot)
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<br>-Option to connect a MCP23017 chip to pins 12 and 13 to give you 16 gpio pins to use (this requires the Adafruit MCP23017 library)
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<br>-The flash led is still available for use on pin 4 when using an sd card
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<br>-PWM control of flash/illumination lED brighness implemented (i.e. to give brightness control)
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<br>-Can read the image as RGB data (i.e. 3 bytes per pixel for red, green and blue value)
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<br>-Act as web client (reading the web page in to a string) - see requestWebPage()
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- Web server with live video streaming and control buttons
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- SD card support (using 1-bit mode - gpio pins are usually 2, 4, 12 & 13 but using 1bit mode only uses pin 2) - I have heard there may be problems reading the sd card, I have only used it to write files myself?
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- Stores captured image on sd-card or in spiffs if no sd card is present
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- IO pins available for general use are 12 and 13 (12 must not be pulled high at boot)
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- Option to connect a MCP23017 chip to pins 12 and 13 to give you 16 gpio pins to use (this requires the Adafruit MCP23017 library)
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- The flash led is still available for use on pin 4 when using an sd card
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- PWM control of flash/illumination lED brighness implemented (i.e. to give brightness control)
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- Can read the image as RGB data (i.e. 3 bytes per pixel for red, green and blue value)
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- Act as web client (reading the web page in to a string) - see requestWebPage()
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The root web page uses AJAX to update info. on the page. This is not done in the conventional way where variable data is passed but
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instead passes complete lines of text, it may not be elegant but it makes changing what information is displayed much easier as all you
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have to do is modify what info handleData() sends.
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have to do is modify what info handleData() sends.
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BTW - I have created a timelapse sketch based on this one which may be of interest: https://github.com/alanesq/esp32cam-Timelapse
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@ -62,11 +63,11 @@ created using the Arduino IDE with ESP32 module installed
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(See https://randomnerdtutorials.com/installing-the-esp32-board-in-arduino-ide-windows-instructions/)
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No additional libraries required
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There is a very good Youtube video on using the ESP32Cam board here: https://www.youtube.com/watch?v=FmlxC0goKew&t=610s
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[Youtube video on using the ESP32Cam board](https://www.youtube.com/watch?v=FmlxC0goKew)
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Schematic: https://github.com/SeeedDocument/forum_doc/blob/master/reg/ESP32_CAM_V1.6.pdf
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[Schematic](https://github.com/SeeedDocument/forum_doc/blob/master/reg/ESP32_CAM_V1.6.pdf)
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Info on camera settings: https://randomnerdtutorials.com/esp32-cam-ov2640-camera-settings/
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[Info on camera settings](https://randomnerdtutorials.com/esp32-cam-ov2640-camera-settings/)
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----------------
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@ -141,24 +142,22 @@ https://github.com/alanesq/CameraWifiMotion
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When streaming video these units can get very hot so if you plan to do a lot of streaming this is worth checking to make sure it is not going to over heat.
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You can see a demo of accessing grayscale image data here:
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https://github.com/alanesq/esp32cam-demo/blob/master/Misc/esp32camdemo-greyscale.ino
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[Demo of accessing grayscale image data](https://github.com/alanesq/esp32cam-demo/blob/master/Misc/esp32camdemo-greyscale.ino)
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A very impressive sketch here which can record AVI video to sd card - https://github.com/mtnbkr88/ESP32CAMVideoRecorder
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[sketch which can record AVI video to sd card](https://github.com/mtnbkr88/ESP32CAMVideoRecorder)
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A handy way to upload images to a computer/web server via php which is very reliable and easy to use: https://RandomNerdTutorials.com/esp32-cam-post-image-photo-server/
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[Handy way to upload images to a computer/web server via php which is very reliable and easy to use](https://RandomNerdTutorials.com/esp32-cam-post-image-photo-server/)
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How to crop images on the ESP32cam: https://makexyz.fun/esp32-cam-cropping-images-on-device/
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[How to crop images on the ESP32cam](https://makexyz.fun/esp32-cam-cropping-images-on-device/)
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Some good info here: https://github.com/raphaelbs/esp32-cam-ai-thinker
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and here: https://randomnerdtutorials.com/projects-esp32-cam/
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[Some good info here](https://github.com/raphaelbs/esp32-cam-ai-thinker) - [and here](https://randomnerdtutorials.com/projects-esp32-cam/)
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Very handy for testing out bits of ESP32 code: https://wokwi.com/
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[Wokwi - handy for testing out bits of ESP32 code](https://wokwi.com/)
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Some sites I find handy when creating HTML:
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test html: https://www.w3schools.com/tryit/tryit.asp?filename=tryhtml_hello
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check html for errors: http://www.freeformatter.com/html-formatter.html#ad-output
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learn HTML: https://www.w3schools.com/
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- [test html](https://www.w3schools.com/tryit/tryit.asp?filename=tryhtml_hello )
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- [check html for errors](http://www.freeformatter.com/html-formatter.html#ad-output)
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- [learn HTML](https://www.w3schools.com/)
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You may like to have a play with a Processing sketch I created which could be used to grab JPG images from this camera and motion detect:
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https://github.com/alanesq/imageChangeMonitor
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