• 14
      Nov - 2019

      Raspberry Pi, Single-board Computers | 4 min | 696

      #Raspberry Pi: Encrypt (and save) Docker credentials

      Raspberry Pi, Single-board Computers | 4 min | 696


      credentials
      docker enviroments
      docker hub
      docker registry
      embedded systems
      encryption
      go
      raspberry pi

      Usually, I login to different Docker registries (local, Docker Hub, etc.) with a computer running Ubuntu. I execute once docker login, then I enter the username and password, and after restarting the system, the access data is still available. That means, I write the credentials only once. But, on the Raspberry Pi, it was different until today: I needed to write the login credentials every time I booted the board.

      This article helps you to install the needed tools to save Docker login credentials on the Raspberry Pi, but not as plain text, so that the next time that you reboot the Raspberry t...

    • 16
      Oct - 2019

      Product Reviews, Single-board Computers | 5 min | 6264

      #Orange Pi Zero LTS: An 'upgraded' alternative to the old Raspberry Pis

      Product Reviews, Single-board Computers | 5 min | 6264


      armbian buster
      benchmark
      development boards
      n-queens problem
      performance
      raspberry pi

      The Allwinner H2+, which integrates four ARM-Cortex A7 cores that can clock up to 1.2GHz, is powering the Orange Pi Zero LTS. The tiny board, which measures just 52 x 46 mm, features 802.11 b/g/n Wi-Fi, Ethernet, up to 512 MB of RAM, USB 2.0 Type-A and a microSD card slot. There is also a 26-pin unpopulated GPIO header along with a 13-pin header for a headphone, USB 2.0, TV-out, microphone and IR signals.

      This board is the next generation of the Orange Pi Zero that was first launched in November 2016 for $7 and up. It should solve various issues with the Allwinner XR819 WiFi module that many ...

    • 23
      Sep - 2019

      Product Reviews, Single-board Computers | 6 min | 3523

      #Rock Pi S: a tinier version of the Raspberry Pi with Alexa functionalities

      Product Reviews, Single-board Computers | 6 min | 3523


      Alexa functionalities
      debian stretch
      development boards
      OS image
      performance
      Radxy
      Rock Pi S

      Radxy, the company behind the Rock Pi 4 is back! A couple of days ago, I've received the Rock Pi S (see Fig. 1), a miniature developer board that measures just 38 x 38 mm. The board is powered by the Rockchip RK3308 SoC, which integrates four 64-bit ARM Cortex-A35 cores (Ultra-High-Efficiency). Each of the cores reaches up to 1.3 GHz. The SoC also has a built-in voice activity detector (VAD) for use with IoT and smart voice applications.

      Despite its tiny size, the Rock Pi S includes a 26-pin GPIO header along with a 26-pin audio/voice header and a microSD card reader. Additionally, the Rock P...