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Code BEAM Berlin feat. Nerves
There are multiple satellite events for Code BEAM in Berlin. If you are attending or just live in/near Berlin you should come.
Nerves workshop, 3rd of November
Most importantly Gus Workman stepped up to pull together a Nerves session . A workshop at BitCrowd's offices, like last year, thanks to Chris Beck. Dan Janowski helping make things happen. A fun, low-pressure way to get started with or push forward with Nerves!
Nerves training, 4th of November
As part of Code BEAM Gus stays busy running a training. Sign up for this if you want 8 hours of focused Nerves using the hardware Gus developed for Goatmire Elixir, an eInk display with wifi.
Personally I am incredibly bummed to miss both of these. I'll be spreading the gospel about Nerves at Sweden's largest developer conference and that has to count for something. The FOMO is real. Massive kudos to Gus for carrying the Nerves banner in Berlin.
NervesConf US talks released
Redwire Labs keeps shipping those NervesConf US talks. We get a triple set of straight bangers!
Taun Chapman shares how Fellowes products in the Array series use Nerves. A real production deployment of Nerves. Good to hear Taun share this stuff.
Abelino Romo shares his procedure for porting Yocto board support to use in Nerves instead. This is a really useful path for figuring out how to run Nerves on a lot of serious industry boards since Yocto has become quite the standard.
Ben Murphy shares the intricacies of scheduling and time from his experiences in building GridPoints Energy Management Controller.
Nerves Meetup EU
Get on the list . And see the upcoming events !
Next up is Alvise Susmel covering Elixir, RPi5 & the Hailo/AI Kit for real-time detection.
Nerves Meetup (the US one)
The only reason to still have a Meetup account ;)
Sign up for the meetup to not miss these.
Project updates
Judging by my email a storm of system packages is inbound. It has not shipped yet though so things are fairly calm.
First look: nerves_burner
https://github.com/nerves-project/nerves_burner
A user-friendly tool for downloading and writing pre-built Nerves firmware images to MicroSD cards.
This is a very quick way of getting started with Nerves on a supported device. It'll flash Nerves Livebook och Circuits Quickstart on a device in the fastest way possible.
Give it a whirl :)
Current version: nerves_burner, v0.2.1
Preview: Nerves device discovery
I have had issues with mDNS off and on and I was suggesting we should ship MNDP support with Nerves since it had this awesome task for discovering devices, getting IPs and didn't get tangled up in the OS mDNS support. Frank took this personally. In a constructive way.
This script will be improved and make it's way into a Mix Task at some point but it is already useful to me. It currently shows me this:
Read the gist to enrich the discovery with those product, model and firmware pieces.
You should try it:
https://gist.github.com/fhunleth/0521d77132105961a89728cc0f265d39
Feedback is ideally through Discord, Slack or Elixir Forum as there isn't a repo to report on yet.
Regular updates
This is a security and bug fix update to 1.32.2.
Changes
- No longer require rng-tools to be installed to prevent the boot process from hanging due to low entropy. This is no longer needed and can be
removed from most Nerves systems and can be removed from erlinit.conf scripts. In order to prevent surprises, Nerves system maintainers will need to acknowledge its removal via their nerves_defconfig. Instructions included with the compilation error.
- No longer require rng-tools to be installed to prevent the boot process from hanging due to low entropy. This is no longer needed and can be
removed from most Nerves systems and can be removed from erlinit.conf scripts. In order to prevent surprises, Nerves system maintainers will need to acknowledge its removal via their nerves_defconfig. Instructions included with the compilation error.
Package updates
New project generator updates
- In vm.args.eex, use interactive mode rather than embedded mode as a default. Interactive mode boot performance has improved and it’s generally a more user friendly default for those who don’t know about it.
- Replaced rpi3a target with rpi0_2 to encourage
Raspberry Pi Zero 2W users to prefer it.
Changes
- Disable Elixir 1.19 parallel compilation. This is intended to be a temporary fix until the Nerves build issue can be fixed.
- Add REUSE compliance for licensing and copyright info
Nerves and Elixir shirts can be bought at
oswag.org
. Stickers with every purchase.
-Lars
Got questions?
Trouble-shooting is best done on the Nerves Forum over at Elixir's Forum. But if you have big-picture questions you would like to ask around Nerves, feel free to send them in and we might just have ourselves a column here.
Participating in the community
The Nerves community is found wherever Elixirists gather. Try any of the following:
Questions are best asked on the Elixir Forum .
Social conversation and banter:
- Elixir Slack , #nerves channel
- Elixir Discord , #nerves channel
How you can help Nerves
Contribute in the way that works for you:
- Send corrections or improvements for documentation wherever it fails to help you.
- Write about Nerves, give talks about Nerves. Make videos about Nerves. It is all good.
- Write or port a new hardware library and include it in the Elixir Circuits collection .
- Get in touch about taking over maintenance duties for some libraries, we might be able to provide you hardware.
- Apply for an EEF stipend on something Nerves-related and build it. We can help if you have questions about this.
Finally, if you have questions about the newsletter or want to suggest something you can simply respond to this email.
- Lars
