Raspberry Pi from MacOS via SD Card

Posted on: 10th April 2021

get the image: https://www.raspberrypi.org/software/operating-systems/
install the image: https://www.raspberrypi.org/documentation/installation/installing-images/mac.md
diskutil list to find out the rdisk that your SD is associated with
diskutil unmountDisk /dev/diskN replacing the rdiskN with the number of the disk your SD card is associated with
sudo dd bs=1m if=path_of_your_image.img of=/dev/rdiskN; sync replacing the rdiskN with the number of the disk your SD card is associated with. In my case this is sudo dd bs=1m if=/Users/andrew/Downloads/2021-03-04-raspios-buster-armhf-lite.img of=/dev/rdisk3; sync (you can see the progress by pressing ctrl+t)
this will put the image on /Volumes/boot which will be accessible from the command line
sudo diskutil eject /dev/rdiskN to eject the SD card.

Set up Wifi on the card

https://www.raspberrypi.org/documentation/configuration/wireless/headless.md
cd /Volumes/boot
vim wpa_suplicant.conf

enter wifi and country code in the file but that note that this will need to be the 2.4GHz network if you have a Raspberry Pi that does not support 5GHz.

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=GB<Insert 2 letter ISO 3166-1 country code here>

network={
ssid="<Name of your wireless LAN>"
psk="<Password for your wireless LAN>"
}

enable ssh https://www.raspberrypi.org/documentation/remote-access/ssh/README.md easiest is to place a ssh file in the sd card during setup
eject the SD card and put in the raspberry pi and turn it on

Format the SD Card

sudo diskutil eraseDisk FAT32 RASPBIAN MBRFormat /dev/diskN replacing diskN with your disk number found by running diskutil list. Note that this gives the name RASBIAN to the SD Card so now you can cd into /Volumes/RASPBIAN. I followed this site: https://www.michaelcrump.net/the-magical-command-to-get-sdcard-formatted-for-fat32/

Install Nodejs on the raspberry pi

Need to SSH into the PI first then you can do the command line work.
Follow this as it worked for me: https://www.instructables.com/Install-Nodejs-and-Npm-on-Raspberry-Pi/
wget https://nodejs.org/dist/v14.16.1/node-v14.16.1-linux-armv7l.tar.gz
tar -xzf node-v14.16.1-linux-armv7l.tar.gz
cd node-v14.16.1-linux-armv7l/
sudo cp -R * /usr/local/
Check if node is installed node -v
Check if npm is installed npm -v

Install Apache

https://www.raspberrypi.org/documentation/remote-access/web-server/apache.md
Should be able to navigate to http://raspberrypi.lan/
Files should be kept in /var/www/html/ directory
Folder and file permissions for the var/www folder : https://www.raspberrypi.org/forums/viewtopic.php?t=155067

Johnny Five Button on Pi

npm install johnny-five raspi-io
create index.js
=======

Install Dependencies

sudo apt install vim nginx git
install rustup: curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
install openssl and direnv: sudo apt install openssl direnv
cargo build --release
install more deps sudo apt install libprotobuf-dev protobuf-compiler
try again cargo build --release

Install the 64 bit version of the Raspberry Pi OS

https://illegalexception.schlichtherle.de/raspbian/2019/09/21/how-to-upgrade-raspbian-to-a-64-bit-kernel/

Run Next with pm2

https://trinitytuts.com/tips/deploying-a-nextjs-app-in-production-with-pm2/
Create the build first npm run build
pm2 start npm --name "Next App" -- start
Save pm2 settings pm2 save
With nginx make sure the correct permissions: sudo chown -R pi:www-data /var/www

Code to run the button on raspberry pi with johnny-five

const five = require('johnny-five');
const Raspi = require('raspi-io').RaspiIO;
const board = new five.Board({
	io: new Raspi(),
});

board.on('ready', function () {
	const button1 = new five.Button('P1-7');

	button1.on('press', async () => {
		console.log('button1 pressed');
	});
});

Needs to be run with sudo privileges e.g. sudo node index.js

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