Mars Rover Camera for Homebridge

readme.md

Mars Rover Camera for Homebridge

1. Get an API key from from https://api.nasa.gov
2. Download roverpics.sh, fill in the API key.
3. Run the script once to download the latest pictures.
4. Schedule the script to run via cron (or any utility that can run scripts on schedule).
5. Install the Homebridge Camera FFmpeg plugin on Homebridge
6. Add configuration to stream the latest photos (see config.json)

config.json

"platforms": [
     {
        "platform": "Camera-ffmpeg",
        "name": "Camera FFmpeg",
        "cameras": [
            {
                "name": "Curiosity NAVCAM",
                "videoConfig": {
                    "source": "-f image2 -loop 1 -s 720x480 -pix_fmt yuvj422p -i /homebridge/cams/curiosity-NAVCAM-curr.jpg"
                }
            },
            {
                "name": "Curiosity FHAZ",
                "videoConfig": {
                    "source": "-f image2 -loop 1 -s 720x480 -pix_fmt yuvj422p -i /homebridge/cams/curiosity-FHAZ-curr.jpg"
                }
            },
            {
                "name": "Curiosity RHAZ",
                "videoConfig": {
                    "source": "-f image2 -loop 1 -s 720x480 -pix_fmt yuvj422p -i /homebridge/cams/curiosity-RHAZ-curr.jpg"
                }
            }
        ]
        
    }
]

roverpics.sh

#!/bin/bash

# get your API key from https://api.nasa.gov
API_KEY=nasa-api-key
ROVER=curiosity

sol=$(curl -s "https://api.nasa.gov/mars-photos/api/v1/manifests/$ROVER?api_key=$API_KEY" | jq -r '.photo_manifest.max_sol')

function download_rover_pic() {

  rover=$1
  sol=$2
  cam=$3
  dir=$4
  
  data=$(curl -s "https://api.nasa.gov/mars-photos/api/v1/rovers/$rover/photos?sol=$sol&api_key=$API_KEY&camera=$cam")

  pic_curr=$(echo $data | jq -r '.photos[-1].img_src')
  curl -s $pic_curr -o "$dir/$rover-$cam-curr.jpg"
  
}

download_rover_pic $ROVER $sol NAVCAM /homebridge/cams
download_rover_pic $ROVER $sol FHAZ /homebridge/cams
download_rover_pic $ROVER $sol RHAZ /homebridge/cams