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.
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What Communications Technology is used in Car Reverse Cameras?
What communications technology is typically used in car reverse cameras? Analogue or digital, and what protocol? How is the data typically read into the MCU/MPU - via CSI or some other protocol?
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Can a transistor replace a switch that closes ground to an input?
I've been browsing on Google for quite a bit now but couldn't find an answer.
I have a remote that triggers the shutter of a digital camera.
According to the schematics that I've found, the ...
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How to connect a mini camera to four 3.5-5 inch TFT/LCD screens? [closed]
I have an ambitious project, given my limited circuitry knowledge.
To simplify my project's potential, I want:
One mini camera
Four TFT/LCD displays (anywhere between 3.5 and 5 inches)
As long as the ...
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Are there any microcontroller's that support MIPI-CSI2?
As the title states; are there any microcontrollers that support MIPI-CSI2 on the market?
I know product recommendations are not allowed as part of the stack exchange so I will clarify a little ...
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How/where can we use/have camera modules similar to those of smart phones [closed]
Many laboratory or embedded systems projects can leverage cameras similar to those of smartphones because of their size and geometry in general.
But the problem is we cannot just take out the camera ...
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Issues combining SIM7600 and OV2640 camera on ESP32 dev board
I'm working on a project involving an ESP32 dev board with OV2640 connected to it over a custom designed PCB. A SIM7600 module is used to send the pictures over 4G to an external server. The camera ...
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CSI differential pairs differential impedance : follow Jetson design guide or standard 100R value?
I'm designing a PCB based on the Jetson Orin NX system on module, using a camera (MIPI CSI PHY-D).
The problem is that the design guide of the Jetson is giving me a differential impedance of 90-...
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Trying to fix a mess with DC Power supply
I am not even close to know what I am doing with the electricity, but I have a power supply of my 8 cameras that is gone bad and I think I can manage to replace it myself, but there is a big BUT here. ...
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Battery got spicy pillow on a doorbell device, can I replace it with a capacitor?
I have Amcrest AD410 doorbell camera, I noticed the bottom of the device is open/cracked, when I investigated inside, I noticed the battery is swollen/spicy pillow, I couldn't find replacement for the ...
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Connecting and charging 2 gopro cameras to a raspberry pi further away than 3 meters
I want to connect 2 gopro cameras via usb to a raspberry pi, and charge them as well.
Because the raspberry pi can't provide enough current via its usb ports, I'm injecting 12v from the same power ...
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How to perform image windowing on the OV5647 CMOS sensor?
I have an Arducam 5MP OV5647 Motorized Focus CMOS camera module (which is the same as a regular 5MP Raspberry Pi Camera, but with a motorized lens for manual focusing).
https://www.arducam.com/...
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Detecting data traffic into a SD card
I'm designing an automated camera system. A time-lapse camera for very slow-moving objects. I'm interested in glaciers.
The system has very small standby power (~160 uA), and in medium size battery ...
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Are there monochrome camera sensors with more than 16 bit depth per pixel?
Some camera use cases (like exoplanet transit photometry) require measuring smaller variations in brightness across an image and over time than the bit depth resolution in 16 bit monochrome cameras ...
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Are there microcontrollers for 4K resolution image capture? [closed]
My question is quite simply as the title states: Is there any microcontroller for 4K resolution image capture, or even 1080P for that matter?
I've spent time doing research trying to research a ...
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Why color filter mosaic is still fixed for each camera model?
Color filter mosaic (color filter array) is fixed pieces of material that change input ray into another one and built over each pixel of camera matrix.
Why it is still fixed? Is it possible to build ...
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Do camera batteries require a seperate protection circuit (lithium accu 1s)
I have a lot of old camera batteries lithium 3.7 V rechargeable accus (1s), because such handheld cameras keep dying due to lens failures (lots of sand and wind here).
I want to be able to reuse those ...
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RPi Pico and OV2640 using C/C++ SDK
I am trying to connect an OV2640 with RPi Pico using the C++ SDK to get images over UART.
I found this library but I have been on this for days but cant figure out the PIN connection. I tried reading ...
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Can I use a standard flex cable to extend the sensor module cable in a GoPro 11 Mini?
I would like to heavily modify a GoPro 11 Mini, one aspect of the modifications I have in mind is to relocate the sensor module. The issue with this is that it's flex cable is very short so I would ...
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Building an MRI safe video camera (e.g. webcam)
I would like to use a small camera inside an MRI. The eye-tracking cameras that are commercially available are both too expensive and also not suitable for my purposes.
How would one go about making a ...
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Get a motor to move my camera based on a point in an image [closed]
Let's say that I have this image:
Obviously, the camera is pointing to the center of the image, but I need it to point to the center of the bbox. I need to calculate how to get my motor to move so ...
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Power Distribution
I work on a project that need a power distribution method. I thought some schematic bellow that you can see. I don't try that connections because I am not sure. If anyone can warn me about my mistakes ...
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Are semiconductors (specifically silicon) the only materials that can be used for making image sensors in digital cameras?
Could no other type of materials be used even if it means an entirely different sensor design or layout?
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RockPi (okdo rock 4c plus) camera setup
This alternative to raspberry pi showed up and since all the Pi's are sold out I thought I would try it. https://www.okdo.com/p/okdo-rock-4-model-c-4gb-single-board-computer-rockchip-rk3399-t-arm-...
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Making an automated chessboard [duplicate]
I want to create an automated chessboard. At the moment, I'm making the project and deciding what technology to use to detect which piece is at what position and how to move them. I'm not so skilled ...
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Trigger feedback from camera hot shoe to embedded controller
I am trying to build a circuit using the signal from a Fuji XT-20 camera hot shoe to drive an interrupt input pin on a Teknic ClearCore controller.
My understanding is that all the hot shoe does is ...
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What provides the clock signal in CSI2 interface?
What provides the clock signal for the CSI2 interface used for many cameras? Does the camera provide it or is it the processor the camera is interfacing to?
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Could I power a corded device with batteries? [closed]
I have a camera which requires a power supply of 12 V. I want to use it away from a power point, so I thought I could hook up an 8-battery AA holder to it. Would this be possible? See images attached.
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How can I get these pins description?
How can I get these pins' descriptions? I researched on the internet a lot but I couldn't find anything. Here is the datasheet PDF download link and website.
I specially need camera control pins. I ...
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Read Hikvision camera on PC over RS485 [closed]
I have a Hikvision IP camera. I can login onto the camera and stream live video through hikvision website.
However, the connection of the ip camera to the PC is via ethernet, which is limited to only ...
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What's the name of this video door eye wire connector? (port and connector)
I bought a video eye on Aliexpress. A wire with a connector comes from the peephole, and there is a port on the back of the screen.
What are their names? Is it some kind of USB or what is it?
UPD: I ...
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Does OV2640 apply flip/mirror operation before or after windowing?
The datasheet of the OV2640 camera mentions the possibility to mirror or flip the image (see "REG04"). For my application it is, however, crucial to know the location of each pixel. Since ...
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Splitting images from camera to 3 different host MCUs simultaneously
We're building a project to capture images from a Sony camera that outputs images over USB-C or Ethernet. For redundancy, we're feeding the images at high speeds to multiple MCUs running Linux, and ...
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Sony NP-FW50 battery hack/upgrade
I've been searching for ways to expand the battery life of my old Sony A7s II DSLR and the best I can think of would be to build a custom battery using bigger LiPo cells. There are two 3.7V small ...
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What is this component next to the IR LEDs on an Amcrest Camera?
I recently disassembled an Amcrest IP Camera and found this sensor next to the IR LEDs. It doesn't look like a photosensitive resistor which has a zig-zag pattern.
Can someone explain what it is?
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Connect the camera module to the PC [closed]
I have several camera modules as shown below, but I don't know how to connect them to my PC.
I searched for similar modules and found the camera module CMT-2MP-IMX291-C014 Using Sensor 1/2.8'' SONY ...
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Streaming image data to SD card using 8-bit data width SDRAM and DCMI peripheral on STM32F446ZCH6
I am currently working on an application involving streaming 480p/720p video from an OV5640 camera to an SD card (using SDIO) but I am afraid that the 128Kb of available SRAM are not enough.
Given the ...
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"Load balancing" a powerbank to power small wireless camera
I'm doing a very small project to power an off-grid wireless camera. I have a 20 Ah powerbank that supports pass-through and I hooked it to a small 5 W solar panel (which looking at this question ...
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Can I attach a micro USB adapter at the end of Cat 6 cable?
I am installing underground Cat 6 cable everywhere in my house - for internet, CCTV and telephone.
I want to keep the option of replacing my CCTVs with a WiFi-based camera (like Mi camera) at a later ...
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Pinout of the 24 pin connector of the P5V0A?
Where can I get the pinout for the P5V04A SUNNY camera 24 pin flex connector used in the raspberry camera module v1.3??
(the pinout of the tiny yellow part on the camera)
I need to know the function ...
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Can I solder camera cables to a breakout board?
I've got an NVIDIA Jetson with 4 cameras connected to it via USB 3.0. The GPU does not have enough ports so I am relying on a USB hub to connect everything. I've experimented with several hubs and ...
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CSI Transmitter does not change to HS mode
I don't have deep knowledge about the CSI protocol, but I have brought up several cameras with that interface connected to my host. Now I am facing a problem with a camera module and I want to ...
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Why does pixel binning remove colors and provide monochrome image only with CMOS color cameras?
Some industrial cameras (astrophotography or microscopy) offer a hardware digital "binning" feature. Indeed, sending uncompressed 10 megapixels x 3 RGB bytes per pixel x 30 frames per second ...
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Do I need a diode in my circuit when using a USB-powered DC power supply to power a laptop camera?
I have made a USB webcam from an old laptop camera, a 5 V/3.3 V DC power supply powered by USB, and an old USB cord. When I looked at similar setups, however, I found they tended to have one or two ...
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Hacking a trail camera [closed]
A quick warning, I have no prior knowledge in electronics. I don't even know if what I'm asking is doable.
Here is the idea. I was given an old refurbished Reconnyx Hyperfire 2 camera trap. The flash ...
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Simplest solution to automatically turning off dash cam when ignition is off, but turn it on with button?
I recently purchased and installed a dash cam in my vehicle (large truck). It requires three connections: ground, constant ~12V, and ignition/accessory ~12V. I have connected the dash cam to ...
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What DMA settings should I use for DCMI for STM32?
OV7670 is a camera with 8-bit bus communication. It's possible to connect that to a STM32 who has a DCMI communication bus.
There are two types of OV7670. One with FIFO chip behind the camera and one ...
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TVP5150 output 0x80,0x10 and input video signal not locked
This is my first question, I hope everything is ok :)
I have been struggling with a problem for a while now. I have a PAL camera (from which I barely have any information) connected to a TVP5150AM1 IC ...
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How to connect to camera interface on OVM7251-EAAR-AA0A?
There's a weird connector on the OVM7251-EAAR-AA0A board from Omnivision:
It seems to be 40 pin and 2 cm wide, and from the sensor documentation it's supposed to be a 1-lane mipi / lvds interface.
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Serial Camera Control Bus (SCCB) - Why are my Serial Input Output Data line always high?
I'm looking for a SCCB library for the camera OV7670 and I have been looking everywere for C code that fits OV7670. But the problem is that my SIO_D (Data line) is always 1 when I read the data line.
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Which registers for OV7670 for returing unsigned 8 byte data instead of 16 bytes data
In OV7670 you can specify CIF(352x288), QVGA(320x240), QCIF(176x144) and VGA(640x480).
But I'm looking for a minimal resolution. For example QVGA would or QCIF would be a good choie. But here is the ...
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