# Timmerdorp PI Camera 2022

This is an iteration on the 1st version from 2015 (opens new window)

This year I added contentful to host the latest image for the Timmerdorp.com (opens new window) site. The header fetches the latest image from contentful every minute, so its a live updating background image.

# Requirements

AWS account
Contentful account
raspberry pi 3b
pi camera module

# Setup

install nvm
nvm i 16
sudo raspi-config (to setup camera)
libcamera-jpeg -o test.jpg (test camera)
sudo apt-get install python3-pip (install python pip)
pip3 install awscli --upgrade --user (install aws cli)
aws configure
create package.json
create image.sh
create index.js

# image script (image.sh)

#!/bin/bash

DATE=$(date +"%Y-%m-%d_%H%M")
DAY=$(date +"%Y-%m-%d")


libcamera-jpeg -o /home/pi/images/$DATE.jpg --vflip --hflip

/home/pi/.local/bin/aws s3 cp /home/pi/images/$DATE.jpg s3://timmerdorp-media/2022/$DAY/ --acl public-read

/home/pi/.nvm/versions/node/v16.16.0/bin/node index.js $DATE.jpg

if [ $? -eq 0 ]; then
   rm /home/pi/images/$DATE.jpg
else
   echo FAIL
fi

# package.json

{
  "dependencies": {
    "contentful-management": "^9.0.0"
  }
}

# Contentful script (index.js)

const contentful = require('contentful-management')

const client = contentful.createClient({
	accessToken: '[accesstoken]'
})

const fs = require('fs')

async function uploadFile(name) {
	let space = await client.getSpace('[space-id]')
	let environment = await space.getEnvironment('master')
	let asset = await environment.createAssetFromFiles({
		fields: {
			title: {
				'nl': name
			},
			description: {
				'nl': name
			},
			file: {
				'nl': {
					contentType: 'image/jpg',
					fileName: name,
					file: fs.createReadStream('images/' + name)
				}
			}
		},
		metadata: {
			tags: [
				{
					sys: {
						type: "Link",
						linkType: "Tag",
						id: "headerPhotos"
					}
				}
			]
		}
	})
	asset = await asset.processForAllLocales()
	asset = await asset.publish()

	let assets = await environment.getAssets({
		'metadata.tags.sys.id[in]': 'headerPhotos',
		order: 'sys.createdAt'
	})

	if (assets.items.length > 10) {
		let deleteAmount = assets.items.length - 10;
		for (let i = 0; i < assets.items.length; i++) {
			const asset = assets.items[i];
			if (i < deleteAmount) {
				await asset.unpublish()
				await asset.delete()
			}
		}
	}

}

uploadFile(process.argv[2]);

# Crontab

Change/update the cron file with crontab -e

* * * * * /bin/bash /home/pi/image.sh >> /home/pi/images/log 2>&1

The end