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Car Keys Micro Camera Review
hope it can help your life safe and happiness
The #5 is one version of the 808 car keys micro camera.
|Table of Contents|
● #5 (#2 variant) - 720x480
● #5 Instruction Manual (for reference only)
● #5 - Upside Down Image - Button Press Smokes Camera
● #5 Camera, Video Undistorted, Images Distorted
● #5 Font Blanking
● #5 Variant, Fake Upscaled 1280x960
|110214 - #5 Variant, Fake Upscaled 1280x960 video|
#5 HD variant, button side, photo by Jin'
#5 HD variant, battery side, variant photo by Jin', Syntek STK1262 CPU
manufacturer Syntek, webcam driver STK02N, hardware id
of mass storage devie 05E1 0B02, video
time is in the lower right corner and white text. |
Set time: time.txt: YYYY MM DD HH MM SS
Set resolution ( must place the file in the root, keep the rec button pressed, and connect the usb until led light switches off)
Originally it was at 640x480, after setting any of these, the video is flipped upside down. Reset has no effect.
N=1280x960 R=1980x960 Y=640x480
20090 909090909 N
20090 909090909 R
20090 909090909 Y
It seems that all the command strings are just switching between 1280x960 and 640x480 modes.
It is always upside down (so buttons have to face downwards to make a good video).
I can not reproduce the 1980x960 resolution. (Maybe I made a misreading before?)
I bought it on an auction site (www.vatera.hu) from a person.
I did not get the original user manual, only (a crappy) one made in hungarian by the person who sold it.
As a webcam it sends video 320x240 (USB 1.1 speed)
Audio is always PCM 8000Hz mono 64Kbps
Mode 1: Image size: 3264 x 2448 Video size: 1280 x 960
Mode 2: Image size: 1600 x 1200 Video size: 640 x 480
|101217 - #5 Font Blanking|
received a #5 camera. The camera firmware is in the 8-pin SPI
flash memory chip. Using an
eprom programmer he was able to read the camera firmware,
blank the font, and re-write the firmware. Now his camera
has no video date time stamp. At this time the
eprom programmer is required and there is no way to do this
with software tools through the USB cable.
Here is the 1 megabyte (0x100000) original firmware and the blanked font firmware. The original CRC32 is 290F9E41.
101219 RM 290F9E41 syntek_rom_original.bin
101219 RM 290F9E41 syntek_rom_datetime_removed.bin
#5 camera, Roger M. Button side
#5 camera, Roger M., Battery side
|2010 June 16 - #5 Camera, Video Undistorted, Images Distorted|
|William sent me
a sample 720x480 AVI from a #5 camera that
is undistorted. By contrast the #3 camera
produces an aspect ratio (AR) distorted 720x480 video.
In another bizarre twist, the photos from his #5 camera are AR distorted! The 1280x1024 images display a circle as a tall oval. They would be undistorted if rescaled to 1280x960.
The video needs to be played at an AR of 1.5 to be undistorted. This is puzzling because most players do not normally playback at this AR.
Most NTSC DVDs are encoded 720x480 with AR distortion, but rescaled and played at 4x3 or 16x9 without distortion.
Could the native resolution be 720x480?
Could the native resolution be 720x540 and cropped to 720x480?
Could the native resolution be 640x480 and cropped to 640x427 and scaled to 720x480?
|#5 Camera, 720x480 with no aspect ratio distortion|
Some #5 cameras use the LLH-7670 camera module. Is the 640x480 OmniVision OV7670 sensor used in the #5?
Does anyone in China know what they are doing? Imagine how great this camera could be if it was being produced by someone who cared about photography. Creating a camera that takes undistorted video and distorted photos makes no sense. Some idiot in China is probably tweaking the software from a stolen cell phone design.
The 1.5 AR would be dead, except for the fact that all 35mm film image area (36x24 mm) is 1.5 AR. The very high end Canon D5 digital camera has a 36x24 mm sensor, only to be film accurate.
At this time, I consider any Syntek processor camera with 64Kbps audio that takes 720x480 video to be a #5.
Questions waiting to be answered about the #5:
Does every camera offer the option to remove the date time stamp?
Does every camera take undistorted video?
How many different variation are there?
|2010 June 09 - #5 Flood|
People are reporting that they are receiving a #5
cameras when they think they are ordering a #3 camera.
The #5 is 720x480, 30.000 fps, and has the video date time stamp in the lower right, but the color is white or orange. The processor is Syntek not SunPlus.
The video quality of the #5 is not as good as the #3, probably because the data rate from the internal camera module is half that of the #3.
The audio quality is worse. The #5 audio data rate is 64Kbps, vs 353Kbps for the #3.
All of the #5 sample AVI files sent to me have at least one error in the AVI encoding that might make the file hard to play on some players. This can be fixed by opening the file with VirtualDub, and saving it without re-encoding it.
|2010 Mar 25 - Camera #5 - Upside Down Image - Button Press Smokes Camera|
Camera #5, top side, smoked diode in red oval.
hold the reset button while pressing the power button, you can
smoke the camera.
Nigel wrote me to say that his #5 camera (similar to a #2 camera) takes an upside down image. Also, the Y N thing in the date time file will not disable the date time stamp.
"I discovered I had let the smoke out of the electronics! Whilst pressing buttons to try to discover some hidden mode, I had held in the reset button whist powering it up. This caused a diode to short circuit (not open circuit) hence being able to turn it on but not off. If the diode goes open circuit (or is removed) then it is not possible to turn the camera on. I replaced the diode and can now turn it on and off. The diode is at upper left leg of the chip CO-TOC near upper middle here: up.JPG
I let the smoke out for a second time so know exactly what created my 'fault' !
Also, if you look at the upper right side of the above image,
there are 2 LED's - on mine, one is visible through the pinhole
in the casing (Yellow/Orange in mine) the 2nd one is a Red LED
and flickers when attached to a PC via USB cable as it
read/deletes images. Maybe there is yet a way to 'talk' to the
The image is still upside down and timestamp is lower right. If I turn the camera upside down, take a pic or video, the image is now right side up and timestamp is still lower right ?!
I have no idea how to get the image the right way up again and can imagine that there is still a possible electronic fault or maybe a hidden mode I need to discover.
|2010 Mar 02 - #5 camera (#2 variant) 720x480|
|I am getting reports of a "new"
camera that is 720x480. I would call this #5 camera
variant of the #2 camera, they use the Syntek processor). This will make it difficult to
distinguish the 720x480 #3 camera from the #5 camera. Comparisons:
Camera variant, 720x480, Blue LED
Camera variant, 720x480, internal bottom view, micro SD slot, click for full size
#5 camera bottom
#5 camera top
This work by Charles E Lohr is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
IIS 6.0 There is no politically correct content on this web site. I have never owned an SUV.