Tux Machines
Posted by Roy Schestowitz on Jul 01, 2023
=> OpenBSD and FreeBSD Leftovers | Free, Libre, and Open Source Software Leftovers
I2C is a multi-master, low-speed, bidirectional bus specified in NXP UM10204. There are only two signals: SCL (the clock) and SDA (the data). Each of the signals is open-drain, with resistors pulling the signals high. This property is used throughout the protocol. For example, by defining an acknowledgement (ack) as holding SDA low, there is an implicit negative acknowledgement (nack) when no device responds to a transaction.
=> ↺ Pi-like SBC taps Rockchip RK3588S SoC
The Indiedroid Nova is a single board computer with the same form factor as the popular Raspberry Pi 4B and powered by the Rockchip RK3588S SoC. This SBC supports up to 16GB of RAM and offers 8K video capability.
=> ↺ Silicon Labs kit comes with 2.4GHz antenna and environment sensors
The xG27-DK2602A development kit is a tiny board featuring a Silicon Labs Wireless Gecko SoC for portable IoT applications. This kit offers a range of features including four environment sensors, onboard debugger and up to 20 I/Os.
=> ↺ Introducing the Liberty Phone
Introducing the Liberty Phone with more RAM and more drive space, starting at $2199.
The Liberty Phone is the upgraded version of our popular Librem 5 USA phone with Made in USA Electronics. The Liberty Phone integrates 4GB of RAM and 128GB of internal storage.
All the electronics of the Liberty Phone are made in our USA facility, and the entire phone is assembled at that same facility, using the same manufacturing process we used for the Librem 5 devkits in 2018 and Librem Key that has the Made in the USA label started in 2019. By doing all electronics fabrication, assembly, and fulfillment within the same facility Purism can oversee each stage of the production.
=> ↺ Review: Watchy - an eInk watch full of interesting compromises
It is an Arduino powered, open source, eInk display, with no data guzzling tendancies. And is only £60 including delivery. It's gorgeous to look at without being distracting, has a massive battery life, and allows for a bunch of tinkering.
=> ↺ Watch this mesmerizing machine roll a ball into eternity
This project is a real life representation of the those simulation GIFs that show virtual machines moving balls in endless cycles. A simulation like that is easy to make when you don’t have to adhere to physics, but it takes some doing to accomplish the same thing in real life. Perpetual motion is, of course, impossible. So this machine utilizes motor-driven mechanisms to keep a ball moving around a vertical track. That track is clear laser-cut acrylic, while the rest of the custom parts are 3D-printed.
=> ↺ Name that Ware, June 2023
I tested the image against Google Image search and this particular crop of the ware seems to foil any exact matches. However, if you do manage to find an exact hit with a simple image search engine query, I’d be curious to know what you’re using, so I can use this to test against future wares.
Let's briefly recap the architecture of a typical intrusion alarm. An intrusion alarm system (and essentially the same goes for fire alarms as well) consists of a controller that monitors sensor zones. When the controller detects that a sensor has been violated while the system is alarmed, it enters the alarm state. Once this happens, it reports the alarm to a Central Alarm Receiver (CAR) at a Central Alarm Station (CAS). The CAS is then responsible for dispatching emergency services (or private security) to respond to the alarm.
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