HubblePi

This software turns a Raspeberry Pi camera in a remote controlled camera for astrophotography. The typical application is to have a Raspberry Pi with HQ camera mounted on a telescope while the user controls the camera over the network. All controlls of the camera are available but the main focus is on long term exposures with full control of low level parameters (analog gain, shutter time) and getting raw image data. Other applications could be:

low light photography (for instance light emission microscopy),
time laps photography,
...

The software package consists of:

A server script running on a Raspberry Pi (which has a camera). This script receives commands to control the camera. The Raspberry Pi can run headless.
A client software with GUI allowing the user to control the camera over TCP/IP.
A preview GUI for the captured raw images.
A command line tool to convert the raw images to FITS.

Raspberry Pi cameras V1 and HQ are supported, but the HQ camera is highly recommended because of its much better performance (higher sensitivity, lower noise, larger dynamic range, longer exposure times, higher resolution).

ATTENTION:

The camera server script does not use any authentication to protect against intruders. Use the server script behind a firewall or in an isolated network!

Installation

On Raspberry Pi

enable camera interface sudo raspi-config goto "Interface Options" and enable "Legacy Camera", reboot
install python3, python3-numpy and python3-pip on your Raspberry Pi:
```
sudo apt-get install python3 python3-numpy python3-pip
```
copy folder HubblePi_Camera to your raspberry Pi
install required Python libraries on your Raspberry Pi:
```
cd HubblePi_Camera
pip install -r requirements.txt
```

On Client Computer

Development Environment

You will need this setup when you want to

change the source code or
compile the code by yourself or
execute the latest Python source code.

I use the Miniconda distribution on 64bit Windows (https://docs.conda.io/en/latest/miniconda.html) because it makes less trouble with incompatible packages. Any other Python3 installation will likely also work but needs installation commands to be modified.

Do the following steps:

Install Miniconda.
Setup an isolated environment HubblePi and install required libraries:
```
conda env create -f environment.yml
```
(Conda will ask if you want to proceed installation. Answer with "y".)
Change to HubblePi environment (if not already done) with conda activate HubblePi and install HubblePi library:
```
pip install -e .
```

After that you have will have the HubblePi_Capture, HubblePi_Viewer and HubblePi_RPi2Fits commands available in the HubblePi environment.

Precompiled Software

TODO

Usage

Remote login on your Raspberry Pi and start the camera server:

cd HubblePi
python3 HubblePi_Camera.py -v debug

Start HubblePi_Capture on your client computer, connect to your Raspberry Pi (you will need its network name for that), adjust camera settings and take pictures.

Please see Wiki for further documentation.