• 05
      Nov - 2019

      Product Reviews | 5 min | 1426

      #Xiaomi CMSXJ11A: an IP-Camera with built-in battery

      Product Reviews | 5 min | 1426


      camera
      ip camera
      product review
      security
      xiaomi
      xiaomi ecosystem

      This article evaluates three low budget Wi-Fi cameras that I buy from e.g. banggood.com and aliexpress.com but I will focus most of the analysis on my last acquisition the XIAOMI Mijia CMSXJ11A.

      All cameras in this review are Xiaomi (not exactly built by Xiaomi) and can be connected to the application Mi Home (apple/android). Moreover, you need to select the region to China (Mainland) in the application, otherwise you are not going to find the devices. This has a main disadvantage: the servers are in China Mainland. The documentation is also still in Chinese, and sometimes the cameras talk to ...

    • 16
      Oct - 2019

      Product Reviews, Single-board Computers | 5 min | 7481

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

      Product Reviews, Single-board Computers | 5 min | 7481


      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 | 3964

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

      Product Reviews, Single-board Computers | 6 min | 3964


      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...

    • 14
      Jul - 2019

      General, Product Reviews | 5 min | 1895

      #Timeular: Tracking your time using an Octahedron

      General, Product Reviews | 5 min | 1895


      access to data
      bluetooth
      getting things done
      octahedron
      product review
      time tracker
      time tracking system
      timeular

      First of all, this article is a product review which was/is not supported by Timeular GmbH or similar. I bought the product two weeks ago, because I wanted to test it. I missed out the Kickstarter campaign (2016) and the regular price for the octahedron was too expensive for me.

      Timeular application: Analytics Dashboard
      Fig. 1: Timeular application

      This summer, the tracker is on sale with up to 50% discount and I bought the basic plan. I got an octahedron -called tracker- which connects to the Timeular application (Mac, Win...

    • 09
      Jul - 2019

      Home Automation, Product Reviews, Raspberry Pi | 2 min | 4304

      #Zigbee: Reading Xiaomi Sensors with a Raspberry Pi (no Xiaomi gateway needed!)

      Home Automation, Product Reviews, Raspberry Pi | 2 min | 4304


      aqara
      docker
      hass.io
      home assistant
      home automation
      product review
      raspberry pi 3 B plus
      xiaomi gateway
      xiaomi sensors

      I've been very busy the last weeks. I moved to a new apartment and I was living between moving boxes. Four days ago, I managed to put my desk together and now I have some time (not a lot) to write a new article.

      Last month I've received from GearBest two Aqara sensors:

      These sensors use Zigbee and I connected them to a Raspberry Pi running Raspbian OS and a dockerized version of Home Assistant (DIY tutorial). This connection was made without using any Xiaomi gateway (DIY tutorial).

      Hardware and Software

      ...
    • 12
      Apr - 2019

      MicroPython, Product Reviews | 5 min | 6288

      #MAiX Dock & MicroPython: Hands-On with low power AI at the edge

      MicroPython, Product Reviews | 5 min | 6288


      edge device
      low port ai
      low power ai
      maix dock
      micropython
      object classifier
      sipeed

      This week, I received from Seeed Studio a MAiX Dock to review it. The main board of the kit includes a Sipeed M1w which is a compact module like the ESP32 but based on the Kendryte K210 dual core RISC-V processor. It is designed for low power artificial intelligence workloads, such as face detection, object recognition, or audio processing. There are two type of modules: the Sipeed M1 and M1w, the last one includes WIFI connectivity.

      The main features of the MAiX Dock boards are:

      1. Display I/F – An FPC24P socket for 8-bit MCU LCD
      2. Camera I/F- An FPC24P socket for DVP camera
      3. Storage – micro SD s...
    • 20
      Mar - 2019

      MicroPython, Product Reviews | 3 min | 3553

      #Review: Meet the M5Stack FIRE

      MicroPython, Product Reviews | 3 min | 3553


      esp32
      m5stack
      m5stack fire
      micropython
      prototyping
      psram
      review

      This month, I received the M5Stack FIRE development kit with a PLC base kit from Banggood to review (see Fig. 1). After using it, I can affirm that the M5Stack takes an alternative approach to ESP32 prototyping, because the resulting projects are almost simultaneously finished products. This is possible because the board is housed in a stylish and robust hosing with graphics display, buttons, microSD card slot, USB-C port and speakers. I tested the M5Stack FIRE development kit, and the board includes also a MPU6050, MAG63110 (MPU9250 on the new versions), BSE3729 and a PSRAM to extend the ESP3...

    • 18
      Dec - 2018

      Product Reviews | 1 min | 555

      #Review: InkDrop.tech

      Product Reviews | 1 min | 555


      blockchain
      ether
      product review
      uncensorable social network

      Hi there! the guys at InkDrop need some stars on GitHub! Follow the project and stayed tune! What? You don't know about InkDrop.tech?! Ok, no problem: Here you got a description!

      GitHub Repository: inkdrop-app

      InkDrop

      InkDrop is an open, easy-to-use and uncensorable social network. It is an open source project and can be considered the blockchain community’s answer to the major, privacy invading platforms we depend on today.

      Today’s social networks are centrally controlled & moderated and they don’t pass back the proceeds to the creators. They rely on business models that are irreconcila...

    • 09
      Dec - 2018

      PCB/Board designs, Product Reviews | 5 min | 1109

      #Review: SeeedStudio.com Fusion

      PCB/Board designs, Product Reviews | 5 min | 1109


      hobbyist
      pcb boards
      pcb designs
      product review
      seeed fusion studio

      On August I was contacted by Ben from Seeed Studio to review the Fusion service. I received a coupon, which could be used only to order PCB.

      To define the Fusion service, I take this text from its website:

      Seeed Fusion Service offers one-stop prototyping services for PCB manufacture,PCB assembly and other electronic and mechanical customized services such as CNC Milling, 3D printing and PCB layout services.

      I didn't have at that time a design but I had something in mind that uses communication technology. I was experimenting using LoRa technology and I thought, I could managed to design a b...

    • 18
      Sep - 2018

      Product Reviews, Raspberry Pi | 4 min | 1216

      #Review: RasPad - a tablet for open-source platforms like Raspberry Pi

      Product Reviews, Raspberry Pi | 4 min | 1216


      battery
      raspad
      raspberry pi
      table for raspberry pi
      touch screen

      This is my first review on a product that I bought. I hope you enjoy it! Advices and tips are welcome. Please leave me them in the comment section.

      Update: I changed the title of the article from "#Reviews: RasPad - an open source tablet for Raspberry Pi" to "#Reviews: RasPad - a tablet for open-source platforms like Raspberry Pi". The table is a close-source solution for open-source platforms like Raspberry Pi, Beaglebone, etc. (thanks Zykino for your advice!)

      Introduction

      At the beginning of March I supported the Kickstarter campaign called RasPad. I pledged for the Super Early Bird - RasPad...