camera_toolkit

This package is designed to capture images from two different kinds of camera sources (webcams compatible with opencv and DSLRs compatible with gphoto2) while simultaneously recording the value of a voltage captured using the ADC channels of an Arduino Uno. The packages uses threading to try as much as possible to grab data from all sources at the same time.

Install

First, start by installing the necessary system dependencies.

Dependencies

Dependencies necessary to run the package (tested on Debian and Ubuntu):

sudo apt install build-essential pkg-config git python3-dev python3-venv gnuplot libgphoto2-dev

Clone the repo

Then clone the repo:

git clone https://github.com/ilyasst/camera_toolkit.git

Enter the cloned folder:

cd camera_toolkit

Python package dependencies

Then install the necessary python packages, we'd recommend that you do that in a virtual environment.

Virtual environment

Create your virtual environment:

python3 -m venv .env

Then load it:

source .env/bin/activate

Then install the python dependecies using:

pip install -r requirements.txt

Run the code

You should be ready to run the code, but before doing do, you might want to edit the content of the config.py file:

import os

status = "experiment" # Can be 'experiment' or 'calibration'
serial = False # Will you be using an Arduino for ADC acquisition ?
serial_port = "/dev/ttyACM0"
serial_baudrate = 115200
opencv = True # Will you be using a webcam ?
DSLR = False # Will you be using a gphoto2 compatible camera ?
timestep = 2 # Must be higher than 1 at least
experiment_path = os.getcwd()+"/Dummy_experiment/"


# No need to change these variables
run = True
preview = False
trigger = False
framebuffer = None
devices = {}
count = 0

And finally, use python3 camcontroller.py to run the code.

Arduino for ADC measurements

This is an example of the kind of code that can be used on the Arduino Uno to measure the voltage (between 0 and 5V) using the A0 channel of the ADC.

void setup() {
        Serial.begin(115200); // use the same baud-rate as the python side
}
void loop() {

  // read value from analog pin
  int sensorValue0 = analogRead(A0);
  float voltage0 = sensorValue0 * ( 5.0 / 1023.0 );

  Serial.println("1:"); // This is using as a marker to recognize the channel
  Serial.println(voltage0);
}