Installing docker-machine on Raspberry PI

One of the nicest things about docker is reproducibility and containerisation. It is possible to run multiple applications which requires different environment on the same computer and make them live happily altogether. Although Raspberry Pi has ARMv7 instructions set, we still can run docker on it - we just need different images. One would be surprised there are some official images available on docker hub.

The configuration can be very simple - literally two commands in terminal, thanks to widely available devops tools such as docker-machine and ansible. Having this setup there won't be need to login to the RPi and perform any manual configuration per service anymore. Instead, services can be configured and deployed right from your computer.

If you don't have your Rasbperry configured yet refer to previous article for the initial setup.

Read more

Setting up Raspberry Pi without Monitor

In this post we will setup and configure Rasbian for your RPi to be instantly available via local network and without screen on the linux or mac system. Those steps should be appliable to any Raspberry PI version

To start with we need a few things:

  • Raspberry PI itself
  • 8Gb+ SD Card, class 10 at least
  • Ethernet cable to connect RPi to the router
  • Downloaded Raspbian Lite zipped image

Read more

RPI Zero scan button

While I was finishing wireless scanner and printer server I realised that traditional document scanning approach is not so nice from UX point of view.

I really like the way office scanners in multi-functional devices work. Normally if you want to scan you just load stack of paper into and put your email address. Scanner does the rest and in minute you'll get ready-to-use pdf file in your inbox.

I was thinking about having button attached to RPI Zero which initiates scanning and document upload.

Read more

RPI Zero: print & scan servers

I had to make old printer and scanner wirelessly available over local network. It can be done using wireless printer USB adapter but it's not that cheap and still doesn't support scanner

Obvious choose is using Raspberry PI with linux installed. Before I heard a lot about RPI Zero but could never believe that it costs just £5. Actually it is just £5 and +£2.5 delivery fee. Surprisingly there are no other options except of first class delivery!

Long story short, I put here main steps how to setup print and scan servers on small Raspberry PI Zero:

General configuration

Upgrade RPI software
To access most recent features and freshly created bugs make sure you use most recent version of RPI firmware. To do so run sudo apt-get dist-upgrade.

Static IP
Assign static IP for your raspberry. The easiest way is configure your router DHCP server. Just bind mac address to nice IP in your network, like 192.168.100.100, later in this post I

Reduce graphic memory fraction
If you aren't going to use video how to

Read more