2022-01-31 16:00:00 +0200 +0200
As previously reported, we have
successfully completed and tested the switch to a
pure Debian 11 based ARMv8 (arm64,
aarch64) operating system.
Compared to the Raspberry Pi OS, which relies on an outdated ARMv6 build for compatibility reasons, the performance has increased by 30% on average.
Furthermore, we can now use special CPU
ARM NEON SIMD, which have great
performance advantages especially when
processing streams (compression, encryption).
Hardware virtualization support is now also
By the way, we could not determine a higher RAM consumption, as often assumed.
The ARMv8 update for the Github projects has not been released yet, but will follow soon.
In the process of the operating system
change we have also changed the basic file
system to BTRFS.
This change enables full live snapshot support, this means that you can save, backup and reset the state of the current system at any time.
Another interesting BTRFS feature we enabled is
transparent LZO compression.
Since the I/O controller of the Raspberry Pi is comparatively slow compared to the CPU, using it increases the sequential R/W speed by up to 400% and the random R/W by up to 200%. The prerequisite for this is that the data can be compressed, already compressed data and particularly small files are automatically optimized.
Furthermore we have started to
adapt and finalize our openHAB addons to the latest
openHAB 3.2 release.
These will be published as soon as we have finalized our RESTful APIs to avoid unnecessary rework.
Another positive news we can
give regarding our prototypes, with the receipt and
verification of the last mainboard revision, the
hardware development phase is considered
From now on only minor production relevant corrections are planned and of course future module extensions.
As soon as the pre-series production is completed, there will be nothing standing in the way of a beta.
One of the next steps is the testing of the platform according to the CE/FCC standards. Since the radio components are already certified and we have developed according to EMC guidelines from the beginning, we hope for a smooth process.
Last there is a rather bad news
regarding the expected availability of the
Like all manufacturers in the electronics industry, we are struggling with major problems in component availability, especially as a small manufacturer, the prices, which have increased tenfold in some cases, are unmanageable.
Unfortunately, the situation has become even worse since last year and series production (the pre-series has already been completed) will probably not be possible until the second half of the year.
2021-11-09 16:00:00 +0200 +0200
We are currently working hard to advance the
software for the delivery of our products.
In the last days we have published the source code for the different projects of our
Serial Device Bus Protocol (SDBP) driver stack on Github (under (L)GPL/v2/v3).
The documentation for the Module RESTful API is also published.
This represents only a small but important part of the over 100 projects (git repos) that are included in the NEXUS UNITY OS.
Currently, the focus is on completing the NUOS migration to Debian 11 “Bullseye” and simultaneously switching to a true ARMv8 (64-bit) system.
The performance gain over the
Raspian/Raspberry Pi OS, which still relies on
is 30-50% on average according to our benchmarks, and even 60-300% in the Java benchmarks.
This allows us to fully utilize the hardware of
the Raspberry Pi CM3+ and provide an excellent user
More information about this will be found in a following article.
The next step is the final integration and customization of the newest openHAB release for our platform.
Unfortunately, like all other hardware
manufacturers, we are currently struggling with
component delivery issues.
This delays the provision of final prototypes for beta testing.
2021-08-01 23:55:45 +0200 CEST
We are proud to announce the release of our project website for the NEXUS UNITY Smart Home platform.
The website currently offers a lot of information, but is still under construction.