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
1 answer
45 views

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 ...
user avatar
  • 439
2 votes
0 answers
61 views

How to wire one switch that can turn on/off two independent switches [closed]

In my car I wired in a Front View Camera (Camera-A) that has it's own toggle switch (S-A) to manually turn it on/off, and has it's video displays on my Head Units Display. I also wired a Backup Camera ...
user avatar
1 vote
0 answers
26 views

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 ...
user avatar
  • 769
1 vote
0 answers
28 views

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 ...
user avatar
0 votes
1 answer
26 views

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. ...
user avatar
0 votes
0 answers
23 views

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. ...
user avatar
  • 769
0 votes
0 answers
28 views

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 ...
user avatar
  • 769
0 votes
0 answers
51 views

Running a thermal camera (AMG8833) with an orange/raspberry pi but i2cdetect cannot detect any of the 2 cameras

I have bought 2 AMG8833 thermal cameras from different sellers. I tested both first with an orange pi zero and later with a raspberry pi zero. On the orange pi, I used the following GPIO pins and ...
user avatar
0 votes
0 answers
49 views

Ov2640 pinout on board

Hi guys I’m trying to find out which pins for ov2640 should connect to stm32F401RCT6 Specifically HRFF-PWDN -DCLK must insert in to board pinheader?can you help me?
user avatar
0 votes
1 answer
52 views

Help identifying blown power supply line

I have a "330v200" CCTV camera that died some while ago and now that I disassembled it, I discovered that the S4 diode blew up and another component is shorting out. However, I can't find a ...
user avatar
0 votes
0 answers
54 views

FPV interfacing with Arduino boards

I have been trying to interface a Run Cam Nano 3 with Arduino Nano to read the video data. There are 3 pins to the camera, a 5V pin, a GND pin and a video pin. I have been trying to analogRead from ...
user avatar
2 votes
1 answer
74 views

What is this port, 4 holes, 2x1.8v pairs

I am trying to reverse engineer a cheap Chinese Hi3518ev200 based camera for quite some time now. I have successfully located the UART used for the serial console (3 pins lower left on the picture), ...
user avatar
  • 121
0 votes
1 answer
24 views

Where can I find the data sheet for the SPI&I2C interface chip used in the 8-pin versions of the OV5642 ArduCAM?

I have an OV5642 ArduCam with the 8-pin interface. This module has a RAM buffer and a chip to translate from SPI & I2C into the MIPI/DVP used by the camera module. I have found https://www....
user avatar
0 votes
1 answer
56 views

How do you wire a 16-pin OV5640 camera module for use with an Arduino Uno and the ArduCAM library?

I have an Arduino Uno an OV5640 camera module with 18 pins 3.3V, GND, SIOC, SIOD, VSYNC, HREF, PCLK, XCLK, D9..D2, RST, PWDN Looking at the example source code at https://github.com/ArduCAM/Arduino/...
user avatar
0 votes
2 answers
66 views

Can I set a pin high when it is connected to the SDA line?

I have an STM32 development board. I want use DCMI (camera interface) with this board. Unfortunately there is an AT24C02 E2PROM mounted on board with its SDA pin connected to the same pin used in the ...
user avatar
  • 1
-1 votes
1 answer
62 views

Translating 5-wire camera output to composite signal

An existing OEM rearview camera has 5 wires (V+, LVDS+, LVDS-, LIN, ground). Is there a way to translate (hook up) this to a standard composite cable that goes into back of a aftermarket head unit? ...
user avatar
  • 1
-1 votes
1 answer
134 views

Which connector is this on my camera?

I'm currently investigating an Azure Percept vision device which apparently has 2x MIPI ports as described here. The back of the module looks like this. One of the connectors to which a camera is ...
user avatar
0 votes
1 answer
67 views

How does this scan camera send data to a computer?

I am reading the data sheet of this scan camera (mono version.) My aim is to process the data coming from this camera by programming a simple software (using either CPU or GPU.) I see that it uses a ...
user avatar
  • 1,514
0 votes
1 answer
60 views

Drive NPN from Voltage Regulator?

I am trying to get two disparate camera systems to talk to one another, specifically an Arri camera with a Preston system, and specifically to transmit a tally signal when the camera is recording. ...
user avatar
2 votes
4 answers
246 views

Can I use my old Sony Camera's Night Shot to detect shorts? [closed]

I have an old Sony TRV-14 with a built-in night shot mode for shooting videos in the dark. It is my understanding it works by using sensing infrared radiation which is also how thermal imaging cameras ...
user avatar
  • 1,967
-1 votes
1 answer
72 views

Can I divide a MIPI Clock between two MIPI CSI Cameras?

So, I'm facing this problem I have encountered while building a pcb. I need to mount two MIPI CSI cameras (2 data lanes each) onto a chip that has 4 MIPI data lanes. The thing is, the chip only has 1 ...
user avatar
0 votes
0 answers
55 views

UVC FIFO master interface

I have to interface OV7670 camera module (without an external memory like AL422 for now) to a UVC USB chip FT602Q in 245 synchronous FIFO mode for my webcam project prototype. I followed some ...
user avatar
  • 1
0 votes
0 answers
86 views

About the I2C interface circuit of the Raspberry Pi Camera V2.1

Today, I get the schematic of the Raspberry Pi Camera V2.1. A snippet: The I2C interface on J1 is routed to the camera through Q1. You see, both the gate and the source are pulled up to 1V8. For SCL, ...
user avatar
  • 5,608
0 votes
1 answer
55 views

Has anyone seen how to use mt9v022/mt9v034 cams with microcontrollers? [closed]

I'd like to use Arducam's MT9V022/34 cameras for my project. However, the API they provide is quite limited, and also makes me buy their USB shield module(s). Important part of my project is to change ...
user avatar
  • 41
1 vote
2 answers
77 views

Options for tracking upsets in very fine movements

I'm working on a small engraving device that sometimes hits a tougher part of the target material. Since the tip is very small and spins at a high speed, the engraver sometimes involuntarily slides ...
user avatar
  • 149
0 votes
1 answer
30 views

Infrared Sensor + sCMOS sensor / Why do they have a voltage offset?

I have worked with a number of different, high end, image sensors. Several of them have a pedestal or offset voltage. When you cover the camera so no light gets in, you get 600 cts (out of 16384). ...
user avatar
1 vote
0 answers
166 views

Help in adding camera into Proteus 8

I wish to make an Arduino model in Proteus 8 for simulating it before purchasing the components. I wish to include an OV7670 camera. But I can't find any library for it anywhere. So, my questions are: ...
user avatar
0 votes
1 answer
46 views

Converting Radiant Energy to ADC Voltage

I am working on a camera sensor and was trying to get a rough estimate on if a given camera module has enough dynamic range. Fortunately I know the target and illumination source. The dynamic range I ...
user avatar
0 votes
1 answer
38 views

Minimum Detectable Signal of Camera and Improvements to Minimum Detectable Signal through pulsing

My goal is to determine for specific signal measSig, what is the largest background signal backSig I could receive and still be able to detect my measurement Signal? I know that camera modules ...
user avatar
0 votes
1 answer
65 views

Types of signals being sent through different types of cameras

I'm very much a beginner in electronics, so I apologize if the concepts I'm trying to understand are very basic. I've been looking into making a simple camera setup with my Arduino and an Adafruit ...
user avatar
  • 105
1 vote
1 answer
109 views

How to interface to more CSI-2 devices than available CSI-2 modules on MPU?

the problem is: I have a MPU which has only 2x CSI-2 modules (each with 4 data lanes), however I want connect to 4 other devices over CSI-2 interface (each device has one CSI-2 module). So the ...
user avatar
  • 205
0 votes
0 answers
38 views

Adapting NP-F 7.4-7.2v to 6-6.3v for old camcorder power (JVC GR-AX280)

So my first time posting I have a JVC GR-AX280 that has a 6v to 6.3v DC input range at 1.8A. The goal is to adapt future proof NPF style 7.4-7.2v batteries via a mount adapter as its format of ...
user avatar
0 votes
0 answers
52 views

Connecting multiple CSI cameras ideas

This company uses a CPLD solution for syncing 4 cameras on Raspberry Pi. What I plan is to use an NXP RT1050 I would like to use it to generate the clock signals for 4 cameras and use an I2C ...
user avatar
  • 3
3 votes
0 answers
111 views

Need help identifying the 4 microphone wires in my laptop webcam

I am trying to adapt my laptop's webcam into a USB webcam. Although I couldn't find any schematics online, the manufacturer did print (I assume) labels to identify the 8 wires coming out of the webcam....
user avatar
  • 31
0 votes
1 answer
312 views

Connecting multiple MIPI CSI Cameras

I need to synchronize 4 multiple MIPI CSI Cameras. I'm using the following MCU https://www.nxp.com/products/processors-and-microcontrollers/arm-microcontrollers/i-mx-rt-crossover-mcus/i-mx-rt1050-...
user avatar
  • 3
2 votes
1 answer
101 views

Security device for camera sensor?

I am currently designing a raspberry pi interface board and while I was looking at the documentation for MIPI CSI camera ports I bumped into this sentence: Camera sensors supported by the official ...
user avatar
  • 345
1 vote
0 answers
95 views

How to design "DC iris control" circuitry for CCTV camera applications?

Problem Statement: How to design "DC iris control" circuitry for CCTV camera applications? I have a proprietary and old 'Tamron' lens with me, I wish to control its IRIS. The iris control ...
user avatar
  • 680
1 vote
1 answer
246 views

Camera external trigger; What is the shutter signal?

There is a Sony RX10 III camera which also has a external trigger for it. The goal is to send a signal from a micro-controller (Arduino & optocoupler in between) to release the shutter. I thought ...
user avatar
  • 205
1 vote
1 answer
143 views

How to use a transistor to externally trigger a Canon EOS camera?

I need to trigger a Cannon EOS 650D camera externally, this is done by shorting 2 wires, leading out from a standard 2.5mm jack: The camera provides 3.3V. I want to complete the circuit and ...
user avatar
0 votes
1 answer
85 views

Floating node in 4T CMOS camera pixel

I know how a 3 Transistor CMOS camera pixel works. As I understand, 4T CMOS pixels have one additional transistor that connects the photodiode to a so-called floating node. What is that floating node ...
user avatar
2 votes
0 answers
24 views

Is it possible to connect CSI-2 camera to CSI-1 port? [closed]

I'm not hardware engineer and I have no idea if it would possible connect CSI-2 4k camera to CSI-1 port in snapdragon board? Do I need any adapter or it will work straightaway? Is any other pitfalls I ...
user avatar
  • 121
3 votes
3 answers
210 views

Why does Camera Serial Interface (CSI-2) have multiple data lanes?

I have been reading through the CSI-2 spec and some controller documentation and I see that it has up to 4 data lanes. If data is transferred on 4 lines at a time then how is it a serial interface ...
user avatar
0 votes
3 answers
233 views

Black bar and red/green swap in OV7670 image

I´m working on my OV7670 camera interface and I have some issues with the color/image settings. I use the color bar settings of the sensor to check my logic and the color bar looks good: But I´m ...
user avatar
  • 378
0 votes
0 answers
32 views

DSLR Hotshoe wiring to Arduino revisited one more time - When powering off the circuit, the flash always fires!

After correcting the false triggering I was getting in my last question: DSLR Hotshoe revisited It was related to debouncing the pulse sent from the camera to the flash, I noticed one more problem. I ...
user avatar
  • 381
1 vote
1 answer
118 views

DSLR Hotshoe wiring to Arduino revisited - I'm getting false triggering. How can I overcome that?

I read this post of 7 years ago:DLSR Hotshoe wiring to Arduino I built the exact circuit described in the answer, shown below, to detect when my canon DLSR hotshoe would send a "trigger" ...
user avatar
  • 381
0 votes
1 answer
148 views

What kind of electronic component is this?

I am trying to repair the flash of a P900 camera, since it gives a burning smell after being used. After disassembling the flash unit, I came across this part for which I need some professional eyes ...
user avatar
1 vote
1 answer
151 views

How can I sync an LED with a camera shutter? [closed]

For an academic research project I need to visualise a fast movement. To do so, I need to sync a small (< 6 cm on the longest side) LED light source with the shutter of a high-FPS camera. The FPS ...
user avatar
  • 359
1 vote
1 answer
52 views

Camera sensor to accept or reject the position in which a component is kept on a machine

The factory where I work has a hole punching and labeling machine, that basically needs to punch holes and stick labels onto a plastic container. The most important aspect is that the container needs ...
user avatar
0 votes
2 answers
150 views

Can we program our smartphone camera to detect the frequency and time period of IR light?

My use case is this: I am emitting morse code using a sole IR light source, and I intend to detect the frequency and the time period of the light source using my smartphone camera. Can this be done?
user avatar
0 votes
0 answers
47 views

Cannot find datasheet for CMOS sensor

can anyone please help me identify a datasheet for that CCD/CMOS sensor ? on the camera it says CCD but i highly doubt it since it's 4 dollars. it's a reverse camera and i want to remove the overlay, ...
user avatar

1
2 3 4 5
8