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We are ready for NervesConf EU .
This conference is co-located with Goatmire Elixir and the Elixir part is essentially sold out. There are 4 tickets at the time of writing.
Biggest NervesConf ever :)
139 ticket holders for NervesConf EU.
- Hardware development
- A Nerves Car
- Hydro power plants
- Alarms
- Modems
- Drones
- eInk hacking
Nerves Car
Marc Lainez and his gang of marauders have finally posted a thorough thing about all the work they've done on their Nerves-based EV conversion of a car.
Watch it go!
ElixirConf EU 2024 talk
FOSDEM 25 talk
qemu & u
I've been doing .. research .. development. Something experimental. In preparation for my talk at Goatmire Elixir I have collaborated with one of the sponsors. Ampere. We all know and love ARM right. Well, they do it on the server and I get to play with one of their server chips. The Ampere One 192 core.
Frank Hunleth and I have gone on an adventure because I wanted to run many, many Nerves devices on this hardware. I have shared the story so far in two blog posts. One from last week and one from today:
There is a lot of assorted technical stuff found and covered in those posts and the code I reference. Around qemu, emulation, virtualization and also performance tuning Erlang and the BEAM.
I should also drag Peer Stritzinger's group into this. They've been doing much heavier memory constraints recently.
The useful project coming out of this is nerves_system_qemu_aarch64 . It is not quite prime time yet but quite close. Essentially this will be a pretty useful tool for making tests for Nerves but also doing developer experience things around developing on virtual hardware and so on.
-Lars
Hardware at Goatmire Elixir & NervesConf EU
We are planning something a bit special for the conference and if all goes well you'll see people share more about this. Gus Workman of Protolux Electronics is putting together something special and if you are attending you'll both hear a ton about it and also get some active hands-on time to explore the device. Hardware built for Nerves. I love eInk. We couldn't be more excited!
And don't worry, not really trying to sell more tickets. Seems like we're about at capacity. Just trying to ensure that people coming have the appropriate level of excitement and that the people missing it are asking curious questions after.
This is made possible by our object-storage-slinging friends over at Tigris who are funding the production of these as special sponsorship of the conference.
-Lars
Project updates
System updates!
This is a bug fix update for 1.31.3.
Changes
- Add Erlang patch to use Linux’s available memory stat rather than computing it from used memory for setting the system_memory_high_watermark alarm. This gets rid of the alarm when Linux is caching a lot.
- Add Erlang patch to use Linux’s available memory stat rather than computing it from used memory for setting the system_memory_high_watermark alarm. This gets rid of the alarm when Linux is caching a lot.
Package updates
General system updates
- Updates
- Update Nerves systems to nerves_system_br v1.31.3 (Erlang/OTP 27.3.4.1, Buildroot 2025.02.3)
- Pull in fixes for Elixir 1.19 (not used yet)
nerves_system_mangopi_mq_pro, v0.13.1
Turn off RISC-V vector instructions due to compilation errors
nerves_system_osd32mp1, v0.22.1
Raspberry Pi system updates
- Erlang/OTP 27.3.4.1
- Buildroot 2025.02.3 (fixed 2025.02.2)
- Raspberry Pi WiFi firmware 1:20240709-2~bpo12+1+rpt3
- rpi-libcamera v0.5.0+rpt20250429
- rpicam-apps 1.7.0
- erlinit 1.14.3
- fwup 1.13.0
kiosk_system_rpi5, v0.4.1
kiosk_system_rpi4, v0.4.1
nerves_system_rpi4, v1.31.1
Raspberry Pi, 32-bit systems only
- Disabled PREEMPT_RT due to reports of instability on 32-bit Raspberry Pis.
nerves_system_rpi3, v1.31.1
nerves_system_rpi3a, v1.31.1
nerves_system_rpi2, v1.31.1
nerves_system_rpi, v1.31.1
nerves_system_rpi0, v1.31.1
Other updates
- Fixes
- Increase max transfer size from slightly under 16 KB to 32 KB. Thanks to @ewildgoose for this fix.
Fixes
- Fix continue_in_progress_write() pointer error that when hit would likely include random bursts of 0s in the data stream. Thanks to @ewildgoose for this fix.
Updates
- Update copyright and license info for REUSE compliance
Nerves Meetup
August (US), meetup details
Go check out the meetup, generally arranged by Alex at Redwire Labs. They pull a good crowd consistently.
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.
Nerves and Elixir shirts can be bought at
oswag.org
. Stickers with every purchase.
-Lars
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
