Questions tagged [camera]

A camera is an optical or opto-electronic device that records a 2D image of a 3D scene. Cameras can be still cameras (photography) or video cameras for moving images.

Filter by
Sorted by
Tagged with
0
votes
2answers
53 views

Project with smart phone like camera

I have an idea for a DIY electronics project which involves a camera where I want the camera to be small. I thought may be to get a camera component similar to the ones used in smart phones. But my ...
0
votes
3answers
55 views

Is it possible to wire up a simple camera module with a separate wifi module to create a live UDP stream without full fledged OS?

Could be any simple camera module, like for example that: https://www.arducam.com/product/arducam-5mp-plus-spi-cam-arduino-ov5642/ Wifi module could be also any available. I imagine I would also ...
0
votes
1answer
30 views

Monitoring SD/TF Card status while interfacing with separate host

I'm working on project that requires taking several terabytes worth of RAW photos on DSLR controlled by a microcontroller. Initially the plan was to use a small Linux SBC running some kind of control ...
0
votes
0answers
17 views

Making a DC coupler for my panasonic camera DMC-TS5

I have thought about making a DC coupler sort of by: just using the insulated copper wires inside coils, connect each to the nodes of my camera battery (working battery) - will need soldering, ...
2
votes
1answer
61 views

Transparent Screen Selection

We are as a team with four members intending to design an augmented reality oriented smart glass which shall contain a CMOS camera, wireless communication and transparent screen. The algorithm below ...
0
votes
1answer
37 views

Is there such a thing as analog and digital compatible cmos or ccd sensors?

I'm way over my head with this one but I am trying to learn about cmos/ccd(preferred) sensors in order to build my own camera. Looking to get analog video from a sensor in a very small package size &...
0
votes
0answers
26 views

Converting camcorder internal microphone to external pluggable via jack

I am trying to convert excellent microphone from sony vx1000 camcorder to external one pluggable via jack. I removed the microphone and was able to find schematics I tried connecting jack directly ...
0
votes
0answers
20 views

Converting camcorder internal microphone to external pluggable via jack

I am trying to convert excellent microphone from sony vx1000 camcorder to external one pluggable via jack. I removed the microphone and was able to find schematics I tried connecting jack directly ...
0
votes
0answers
29 views

ESP32S: More than two SPI channels possible?

In a test with an ESP32-CAM, I was successfully able to use SPI with pins 2, 12, 14, and 15: ...
0
votes
0answers
23 views

STM32F746 - FramEvent coming once in 10sec with ADV7180

ADV7180 Video decoder is connected to STM32F746. I am running ADV7180 in Free run mode with blue screen. In STM32 I have initialized Camera and Started with CONTINUES Mode. I am getting Line ...
0
votes
1answer
83 views

Bit Bang SCCB Issue

I am trying to bit bang an SCCB communication between an OV7670 camera module and an STM32F407 Discovery Board. In the datasheet, it is stated that the slave write and read addresses for the OV7670 ...
0
votes
1answer
47 views

STM32F407 Discovery Board DCMI to SPI Output [closed]

I am currently attempting to use a STM32F407 Discovery board to display images captured with a OV2640 CMOS detector on a ILI9341 2.2" TFT SPI LCD. My goal right now is to take a single snapshot and ...
1
vote
0answers
41 views

Composite video signal detection problem?

I have an android headunit and I installed a reversing camera to it. The problem is that the headunit does not seem to detect the camera signal if the environment is too bright. It just shows black ...
2
votes
0answers
77 views

Filtering out everything below 12v on a car reverse light circuit

First of all I've like to mention that I'm by no means an electrical engineer. I'll try to explain what I mean with the title. I have installed a headunit which has an option for a reverse camera. ...
1
vote
2answers
100 views

Infrared LEDs with minimal RED glow

I'm trying to find a 940nm SMD infrared led with minimal red glow at night. The TSAL6400 gets close to it, but it's still not completely invisible and not SMD. I've noticed IR leds have different ...
0
votes
0answers
107 views

USB 3.0 VS MIPI CSI-2 camera interface on Embedded Linux system. Which one is better from both hardware and software perspective?

I have a Sony FCB series camera (1920x1080) and looking for a better interface protocol to connect it with processors like NXP, TI or any similar embedded processor. The camera has a LVDS out port ...
0
votes
1answer
69 views

Bosch security camera pinout

I have a Bosch NDC-274-PT security camera that had the wiring cut off at the base. It's a POE security camera (though it also supports regular 12 or 24V power), so I was hoping to find typical ...
1
vote
0answers
62 views

How to run raspberry pi compatible mipi csi camera on rock pi 4 b

I am trying to run a mipi csi camera on a rock pi 4 but I can't figure out how to get it working. I have the rock pi 4b running on Debian (Linux) and the camera is plugged in and the power led is lit. ...
0
votes
0answers
54 views

Identification of camera component including probable metal composition

I realize this is probably off topic but am curious as to what electronic component might be shown in the following picture, and what metal it likely is made off. It is presumably part of the ...
0
votes
1answer
293 views

Shortenest focus distance of ov2640 camera modules with fixed focus

Is it possible to decrease focus distance to 3-4 centimeters on fixed-focus ov2640 camera modules which sell with chineese ESP-32 CAM or M5Stack ESP32 CAM? Actually they setted up to infinity focus ...
-3
votes
1answer
79 views

How to make arduino with OV2640 2MP Camera Module

How does the OV2640 Camera Module communicate with arduino and through what pins? My goal is to add one to an arduino esp 32.
1
vote
1answer
181 views

Can I add more RAM to the stm32f103c8t6? [closed]

I am currently working on my project using the "super blue pill" which uses the stm32f103c8t6. This board has about 20kb of RAM so there is not too much to work with here. So far I have managed to ...
2
votes
1answer
138 views

Extending PCB switches and LEDs

I have a project where for the prototype, I'm using some off-the-shelf components, namely drone cameras and DVR boards installed in a car. The DVR board has a status LED and a momentary switch which ...
0
votes
0answers
50 views

Can I use Highspeed Opamp as differential clock driver?

I want to use high speed Opamp LT1364 as +/- 15V clock driver of same voltage instead of typical CMOS / CCD clock drivers with lower voltage and slew rate. CMRR : 90dB PSRR : 100dB Slew rate : 1kV/uS ...
0
votes
0answers
91 views

Interfacing DCMI with SDIO and FMC on STM32F446VE

I am attempting to implement a system which involves capturing 1080p images via a camera connected over 8 bit parallel DCMI and saving them to an SD card via SDIO. If I understand correctly I cannot ...
0
votes
0answers
184 views

Interfacing OV7670 camera with STM32F4 (no FIFO)

I have to interface my STM32F401RE with an OV7670 camera module without external AL422. I followed some of the many tutorials for Arduino, and I was able to capture images using Arduino UNO. ...
0
votes
0answers
54 views

Unable to find data sheet for MAX8918ITM

I am quite new to electronics, so I apologise for the inevitable mass of stupidity in this question. I am trying to find the data sheet for the LCD driver MAX8918ITM, from a Nikon COOLPIX L110, and it ...
-1
votes
2answers
134 views

Is only a firmware limitation the fact that some camera can't store photo in RAW format? [closed]

I was interested in understanding if from the point of electrical engineering storing the RAW data of the sensor directly into the memory of the camera require special hardware. Could be more ...
1
vote
2answers
91 views

Camera pixel size limit reached?

Just read here that Samsung has produced a camera sensor with a pixel size of 0.8 micron ie 800nm. Is it possible, or useful, for the pixel size to go below the wavelength of the light being imaged? ...
0
votes
3answers
157 views

IP Camera and USB data transmission over Ethernet Cable

Currently I am working on a project that requires connection of the Arduino and IP Camera over single Ethernet cable to a laptop and additionally supply power to a robot. The goal is to stream Video ...
0
votes
1answer
543 views

Wiring a 7 pin laptop webcam? [closed]

I'm trying to connect an old laptop webcam I bought for $0.93 on eBay to an Arduino Uno microcontroller. Since I currently don't know what all the pins on the webcam are used for, I'm trying to ...
0
votes
0answers
26 views

Can the scanning speed of an electronic rolling shutter CMOS sensor be controlled?

I'm not certain I'm asking this correctly as I don't entirely understand how such a camera sensor works, so help me out with a couple of areas please! I want to program something that makes use of ...
0
votes
1answer
197 views

VHS(C) tape speed issues - how does the speed change for different modes?

I have a VHS-C camcorder that has a lot of trouble keeping constant speed for the main tape motor (even with the battery fully charged). Most of the time it's way too fast (similar to fast forwarding),...
0
votes
1answer
35 views

Camera LED in phones - PWM or analog current controlled?

The LED illuminator/flash that is used on cellphones with cameras is also controlled by flashlight apps. Is the light level controlled by pulse width modulation or is it analog current controlled? In ...
0
votes
1answer
69 views

Can I connect an Android smartphone to an Arduino Uno? [closed]

I'd like to connect my main Android smartphone (it's a ZTE Blade X) to my Arduino Uno. My main reason is I'd like to use the camera on my phone as a sensor for the Arduino, for various projects. Is ...
1
vote
1answer
38 views

Switching 3.3V with a Raspberry Pi gpio pin

I recently bought an IR Camera for my Raspberry Pi, something like this: https://www.amazon.com/kuman-Raspberry-Camera-Module-Supports/dp/B01ICLLOZ8/ref=mp_s_a_1_17?crid=M3FSU2COLT5W&keywords=ir+...
0
votes
1answer
71 views

How does a camera pixel accumulate charge (colour)?

I refer to the Wikipedia entry for a CMOS camera sensor's individual pixel. There is a schematic like so:- and a statement that:- The read-out transistor, Msf, acts as a buffer (specifically, a ...
-2
votes
1answer
87 views

How to emit infrared radiation online without configuring the monitor/hardware?

I wish to make a video streaming application where infrared radiations are emitted out of the display so that if someone tries to record the video through a camera, all they see is a white light and ...
0
votes
1answer
103 views

Where can I get a display screen with 30 Hz or less refresh rate? [closed]

I am experimenting with a camera recording a display screen. Based on what I have read - camera recording a screen will have flicker if the refresh rate and frame rates are not synced. My mobile ...
0
votes
1answer
37 views

Does Camera Power Consumption Lower Without Output?

I have a camera with power consumption listed at 24 VDC +10% @ 1.5 A max. That same camera has a built-in output for an external light, 24VDC @ 750 mA max. Without the external light output, will my ...
4
votes
1answer
753 views

Electric shock from outdoor security cameras

I just bought this outdoor security camera kit from Amazon. (Amazon product link) When wiring it up, I noticed that I got a small sharp shock when touching the small screws on the metal casing ...
1
vote
1answer
35 views

Can high audio input level cause video loss or video distortion in camcorder?

Today I met with a vendor regarding the installation of a PA system at our facility. We currently record meetings with a handheld camcorder mounted on a tripod, and we're looking to add microphones in ...
-8
votes
1answer
263 views

Arduino MKR Vidor 4000 [closed]

Can it capture the image in full Rpi camera resolution and save it somewhere? Thank you for your time.
1
vote
2answers
159 views

What is the response curve of a CMOS sensor cell to the amount of light?

Using my Nikon D5100, shooting RAW pictures and using Darktable to disable absolutely all contrast curves, white balancing, sharpening and even the debayering, I've measured the average value of the ...
1
vote
2answers
75 views

Powering a wireless camera

I'm trying to design a camera system for use in my bike shed. The bikeshed is in range of wifi but has no power. First I thought I could use a Raspberry Pi with a Picam, and have video streamed to an ...
1
vote
1answer
57 views

What to do with internally unused pins on a non-programmable device?

I'm designing a board for using the FLIR Lepton 2.0 LWIF camera (datasheet at https://www.flir.com/globalassets/imported-assets/document/lepton-engineering-datasheet---without-radiometry.pdf), and ...
0
votes
1answer
360 views

Can we use ethernet cable instead of coaxial cable without adaptors.?

I am a mechanical engineer. Trying to build a computer vision system using endoscopic camera. I have a camera with 4 pin input, 2 input pins for power supply of 5 volt and 2 input pins for video ...
1
vote
0answers
83 views

(Arduino) When turning TIP120 on again, sometimes the slave flashes trigger without being told to. Why?

I have two mini slave flashes, that have no stand-by modes by themselves. So, even when charged and ready to flash, current keep flowing from the two AAA batteries each, and, if I forget to turn them ...
1
vote
0answers
55 views

novice user needs assistance for three peltiers being connected to a single power source

I am a novice user, and I am not very familier with Peltier setups, for my old CCD astonomy camera. The Peltier that was broken in the camera is not supplied by the manufacturer anymore, nor will they ...
0
votes
2answers
147 views

What do smartphone manufacturers do differently with their cameras than the Raspberry Pi module camera

There is a huge difference in quality between the image/video taken by the latest iPhone or Samsung smartphone compared to that taken by the Raspberry Pi camera module. What is different about the ...

1 2 3 4 5 7