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Hardware/Modding: Arduino Nano, Raspberry Pi CM3 and Linux-ready UP Xtreme Lite

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Linux
Hardware

  • Dave Darko designs a 16-button keep-alive switch with a Nano Every

    It’s generally not advisable to leave equipment running when unattended. As a safeguard against this possibility at hackerspaces and elsewhere, element14 Presents’ Dave Darko built a custom switch that requires users to intermittently push a button in order to produce additional ‘on’ time.

    The trick here is that instead of having one keep-alive button, the unit has a matrix of 16 buttons that light up randomly to be pressed. The idea is to prevent someone from setting up a second device to simply poke the same key over and over.

    The ‘unhackable’ switch, which resembles a MIDI sequencer input, runs on an Arduino Nano Every and uses a relay to directly control the power state. It’s demonstrated toward the end of the video below, where Darko plays a sort of simple button-based game to keep an LED fixture on.

  • 15-inch touch panel PC builds on Raspberry Pi CM3

    Comfile’s 15-inch “ComfilePi CPi-A150WR” touch-panel computer is built around a Raspberry Pi Compute Module 3 and offers an IP65 protected, 1024 x 768 resistive touchscreen pus USB, LAN, serial, and 22x GPIO.

    Comfile Technology has added to its line of ComfilePi touch panel computers built around the Raspberry Pi Compute Module 3 (CM3). The new 15-inch ComfilePi CPi-A150WR follows its earlier, 7-inch ComfilePi CPi-A070WR and 10.2-inch CPi-A102WR.

  • UP Xtreme Lite SBC offers more affordable Whiskey Lake option

    Aaeon announced a slightly scaled down “UP Xtreme Lite” variant of its 8th Gen U-series based UP Xtreme SBC that provides up to 16GB DDR4, 2x GbE, 4x USB 3.2, and 3x M.2 plus SATA, HDMI, DP, and 40-pin GPIO.

    Aaeon announced a Linux-ready UP Xtreme Lite version of its Kickstarter-backed UP Xtreme SBC, which has also been featured as the mainboard for Aaeon’s UPX Edge embedded system. Aaeon claims the UP Xtreme Lite will be more affordable than the original. Yet, this is the first UP board announced without individual pricing or any promises of community support from its UP project. It is possible that both will be forthcoming.

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today's howtos

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    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

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