• 06
      Oct - 2019

      Product Reviews, Single-board Computers | 5 min | 4691

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

      Product Reviews, Single-board Computers | 5 min | 4691


      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 | 2903

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

      Product Reviews, Single-board Computers | 6 min | 2903


      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...

    • 17
      Sep - 2019

      Deals, Product Reviews | 1 min | 6596

      #Deal: The AMAZFIT GTR Smart Watch is on discount!

      Deals, Product Reviews | 1 min | 6596


      amazfit
      banggood
      deals
      gearbest
      smart watch
      zigbee

      The new Huami's Amazfit GTR has not only inspired me but also you. Now it has just been introduced, but can now be ordered in the China shops. You get a very good price for $144.99 at Banggood for the bigger 47 mm version in the International Version. This supports English and Chinese language. The price is valid for the 47mm variation (42mm variants are currently not available) and will be adjusted as soon as you put the watch into the shopping cart (see figure at the end).

      ...
      Huami's Amazfit GTR 42 mm Huami's Amazfit GTR 47 mm
    • 17
      Sep - 2019

      Deals, Product Reviews | 1 min | 3262

      #Deal: Xiaomi Mi Band 4 has just got a big discount!

      Deals, Product Reviews | 1 min | 3262


      banggood
      bluetooth
      flash sale
      international version
      nfc
      smart watch
      xiaomi mi band 4

      One of the most coveted fitness trackers of 2019 is the new Xiaomi Mi Band 4. Unfortunately, due to its limited availability, Xiaomi does not directly sell the Mi Band 4 in Europe or North America, but it can now be ordered in the China shops. You can get a very good price for:

      Are the Xiaomi Mi Band 4 Chinese Version and NFC version suitable for non-Chinese speaking users?

      Yes, they are!... Check these videos here!. You can change the language!

      The device features a 0.95 inch AM...

    • 14
      Jul - 2019

      General, Product Reviews | 5 min | 1477

      #Timeular: Tracking your time using an Octahedron

      General, Product Reviews | 5 min | 1477


      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 | 2602

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

      Home Automation, Product Reviews, Raspberry Pi | 2 min | 2602


      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:

      1. Aqara Cube
      2. Aqara humidity, temperature and air pressure

      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 | 4951

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

      MicroPython, Product Reviews | 5 min | 4951


      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 | 2870

      #Review: Meet the M5Stack FIRE

      MicroPython, Product Reviews | 3 min | 2870


      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 | 429

      #Review: InkDrop.tech

      Product Reviews | 1 min | 429


      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 | 835

      #Review: SeeedStudio.com Fusion

      PCB/Board designs, Product Reviews | 5 min | 835


      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...