README.md

Zenohex On Nerves

This is the sample repository of Zenohex on Nerves.

Getting Started

To start your Nerves app:

• export MIX_TARGET=my_target or prefix every command with MIX_TARGET=my_target. For example, MIX_TARGET=rpi4
• Install dependencies with mix deps.get
• Create firmware with mix firmware
• Burn to an SD card with mix burn

Let's try Zenohex to communicate between Nerves(target) & PC(host)

Zenohex itself doesn't include Zenohex.Examples.
We copied the examples from Zenohex to demonstrate.

On Nerves iex shell,

iex> RingLogger.attach
iex> Zenohex.Examples.Subscriber.start_link
{:ok, #PID<>}

Nerves project can also run on PC(host), make sure MIX_TARGET is unset before starting iex

On PC iex shell,

iex> Zenohex.Examples.Publisher.start_link
{:ok, #PID<>}
iex(2)> Zenohex.Examples.Publisher.put("hello")
:ok

Back to Nerves iex shell to confirm receiving.

23:11:34.054 [debug] %Zenohex.Sample{key_expr: "zenohex/examples/pub", value: "hello", kind: :put, reference: #Reference<0.2097591244.707657743.258773>}

Yay!!

Of course, we can do the opposite, starting Subscriber on your PC and Publisher on Nerves. Please try it!
(RingLogger.attach is not necessary on this case.)

Learn more

About Zenohex

• https://github.com/b5g-ex/zenohex
• https://hex.pm/packages/zenohex
• https://hexdocs.pm/zenohex

About Nerves

• Official docs: https://hexdocs.pm/nerves/getting-started.html
• Official website: https://nerves-project.org/
• Forum: https://elixirforum.com/c/nerves-forum
• Discussion Slack elixir-lang #nerves (Invite)
• Source: https://github.com/nerves-project/nerves