2020-09-13 06:12:39 +00:00
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# ESP32-CAM-Video-Recorder-junior
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Simple fast version of ESP32-CAM-Video-Recorder
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2020-09-13 06:20:25 +00:00
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ESP32-CAM-Video-Recorder-junior
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This program records an mjpeg avi video to the sd card of an ESP32-CAM.
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You can just compile, download, power-on ... and it will record a series of 3 minute, SVGA videos on your SD card ... while you read on ...
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2020-09-14 01:05:26 +00:00
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by James Zahary Sep 12, 2020
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jamzah.plc@gmail.com
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https://github.com/jameszah/ESP32-CAM-Video-Recorder-junior
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https://github.com/jameszah/ESP32-CAM-Video-Recorder
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jameszah/ESP32-CAM-Video-Recorder is licensed under the
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GNU General Public License v3.0
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jameszah/ESP32-CAM-Video-Recorder-junior is licensed under the
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GNU General Public License v3.0
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The is Arduino code, with standard setup for ESP32-CAM
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- Board ESP32 Wrover Module
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- Partition Scheme Huge APP (3MB No OTA)
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Compiled with Arduino 1.8.12, which used these libraries:
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Using library SD_MMC at version 1.0 in folder: C:\Users\James\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.4\libraries\SD_MMC
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Using library FS at version 1.0 in folder: C:\Users\James\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.4\libraries\FS
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Using library EEPROM at version 1.0.3 in folder: C:\Users\James\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.4\libraries\EEPROM
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2020-09-13 06:20:25 +00:00
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It is the junior version of https://github.com/jameszah/ESP32-CAM-Video-Recorder
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which has 100 other features of wifi, streaming video, http control, telegram updates, pir control,
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touch control, ftp downloads, .... and other things that make it very big and complex.
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This one is written in simple arduino code without any semaphores, tasks, priorities, RTOS stuff ....
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Just set 4 parameters, compile and download, and it will record on power-on, until sd is full, or power-off.
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Then pull out the sd and move it to your computer, and you will see all but the last file avi which died during the unplug.
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Update: I added some complexity.
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Connect Pin 12 to GND to stop a video -- no dead videos -- and prevent recording.
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Release Pin 12 and it will record forever.
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Compile Time Parameters
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1. framesize 10,9,7,6,5 for 10 - UXGA (1600x1200 @ 6 fps), 9 - SXGA (1280x1024 @ 6 fps), 7 - SVGA(800x600 @ 24 fps), 6 - VGA(640x480 @ 24 fps), 5 - CIF(400x296 @ 50 fps)
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2. quality - 1 to 63 - 10 is a good start, increase to 20 to get more frames per second - must be higher than jpeg_quality below
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3. avi_length - seconds for each avi - it closes files, and starts another file after this time - like 60 or 1800
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4. devname - a text name for your camera when the files are on your computer
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Note that framesize and high quality will produce lots of bytes which have to written to the sd. Those frame rates above are
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for the OV2640 camera, and your sd card will have to be able to swallow all that data before the next frame. If the
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sd card cannot take all that data, then the camera will be idle waiting for the sd. Lower the framesize (UXGA -> SVGA),
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and lower the quality (10 -> 15 -> 20, higher number is lower quality) to improve framerate to the camera limits.
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If you have a fast enough sd card, it will record at the full speed of the camera.
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Using a Lexar 633x circle10, U3, V30 SD card, with quality set at 20, it will record at full speed of the camera -- in dull indoor light.
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In bright outdoor light - looking at the sun - it will slow down by half - to about 12 fps SVGA. You could lower quality to keep that
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at a higher fps, if you insist on looking at the sun.
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Using a dollarstore SD card - EAGET circle10, U1 - it will record at about half of the camera capacity.
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You can look at the blinking red led on the back of the chip to see the recording rate -- sd chips for video are made to be more predictable.
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The files will have the name such as:
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desklens 10.3 + 120s.avi
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"desklens" is your devname
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10 - is a number stored in eprom that will increase everytime your device boots
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3 - is the 3rd file created during the current boot
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+120s - is an indictation of how long since we started recording on this boot
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- this is the 3rd file, and started 120 seconds after the boot, so the files must be 60 seconds long
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Small red led on the back blinks with every frame.
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