• 15
      Jun - 2017

      MicroPython
      1 min | 2237

      #MicroPython: Vu meter using WS2812B and SPW2430

      MicroPython | 1 min | 2237


      esp32
      micropython
      SPW2430
      wipy
      ws2812b

      Hi everyone!

      As soon as I saw the WS2812B led strip, I thought: doing a vu-meter with these LEDs would be a nice thing!.

      I was looking for economical MEMS microphones with board (I didn't want to solder a board). I found two options: SPH0645LM4H and SPW2430.

      The SPH0645LM4H uses an I2S interface and the SPW2430 has an analog output. The second board (SPW2430) has two outputs: AC pin which has a capacitor in series to eliminate the DC output of the IC, and the output of the IC (DC pin).

      Preview

      Hardware

      I bought the MEMS mics from exp-tech, here some links (from adapfruit too):

      WIPY2.0WiPy 2.0 x...
    • 02
      Apr - 2017

      MicroPython
      1 min | 2687

      #MicroPython: Weather Report using NEO-M8N

      MicroPython | 1 min | 2687


      esp32
      gps
      micropython
      report
      st7735
      weather
      wipy

      Hi!

      I had two busy months, I've been writting my PhD-Thesis, and another publication and yeap... sorry! I forgot to update the blog!

      Python Code: https://goo.gl/v7NCkj

      Three weeks ago, I received a Ublox NEO-M8N GPS and I tested it with the code that I had. I said it should work, but as you know it always needs some modifications! The NEO-M8N supports GLONASS and GPS, so the $GP changes to $GN, e.g. $GPGGA (GPS) > $GNGGA (GPS+GLONASS).

      The following changes were added:

      # lines 604-606:
      if self.gps_segments[0][2:] in self.supported_sentences:
          # parse the Sentence Based on the message...
    • 29
      Jan - 2017

      MicroPython
      2 min | 3255

      #MicroPython: Weather Report Box

      MicroPython | 2 min | 3255


      esp32
      gps
      micropython
      st7735
      weather
      weather report
      wipy

      Hi again!... First of all:

      Happy Chinese New Year!!!

      I've just uploaded some code for the Wipy 2.0. I wanted to write some python code. That was why I took the Wipy 2.0 and programmed something like a weather report box. In this project the Wipy 2.0 reads the GPS coordinates via UART, then makes a web get request using the API of openweathermap, and after that the results are displayed on a LCD.

      If you like this, please leave a comment, share and/or like! It would be very much appreciated!

      Python Code: https://goo.gl/v7NCkj

      Things used in this project

      Hardware components

      Wipy 2.0Wipy 2.0 x 1
      NEO-6MUblox NEO-6...
    • 15
      Jan - 2017

      Android Things
      6 min | 1681

      #ProjectDIVA: Sensor mesh based on nrf24l01+ connected to Android Things (Update 1.0)

      Android Things | 6 min | 1681


      android studio
      android things
      dhcp
      nrf24l01
      raspberry pi
      sensor mesh
      ui

      I've just uploaded the Java codes for the rf24, rf24Network and rf24Mesh that work with Android Things. This time I didn't write a library because I thought it was better to upload an Android project that can be opened with Android Studio (>2.2.3) and directly started on the Raspberry Pi. I think this can also work with NXP Pico i.MX6UL and Intel® Edison with minor modifications (especially in the BoardDefaults file).

      In this post you will find some explanations about Android Things (installing, connecting, debugging, speed, etc.), the wiring of the complete 'thing' , the Java code, the mod...

    • 08
      Jan - 2017

      General
      1 min | 725

      #Blog: New Style v0.2!

      General | 1 min | 725


      css3
      html5
      new style
      pagekit
      website

      Hi!

      CSSHTML5 I've just updated the website style! I was using theme-brick (Pagekit) without any modification, but I added some today!

      I hope you find it cool! Leave a comment and tell me what you think about it! Stay tuned, I am loading some new codes!

    • 08
      Jan - 2017

      PCB/Board designs
      2 min | 1936

      #TI: Happy New Year 2017!!!

      PCB/Board designs | 2 min | 1936


      android things
      nrf24
      raspberry pi
      sensors

      Out with the old, in with the new: may you be happy the whole year through!!!

      Happy New Year!

      This week has been a very busy one for me. But 2017 starts, and I have some new codes to publish!

      How I start? Ok, I've been working (may be playing) with Android Things using a Raspberry Pi v3, and I've been rewriting some of my libraries!.

      First, I thought, let's try SWIG and wrap the C/C++ codes to use them with Java. But, then I realized, that I needed a wrapper in wrapper, which I think is not possible (I am not an expert with these things, so if I am wrong, please leave a comment, I would appr...

    • 24
      Dec - 2016

      MicroPython
      1 min | 1140

      #MicroPython: Christmas lights!

      MicroPython | 1 min | 1140


      esp32
      leds
      merry christimas
      micropython
      wipy
      ws2812b

      I wish you a Merry Christmas!!! and to celebrate this evening I've just uploaded a new repository for the Wipy 2.0. Some Christmas lights using the WS2812B!

      Things used in this project

      Hardware components

      Wipy 2.0Wipy 2.0 x 1
      WS2812BWS2812B LED strip x 1

      Video


      Config

      boot.py: add your ssid, wlan password, and configure the ip address. You need this file if you want to connect the Wipy 2.0 to your router, otherwise you can avoid copying it and the Wipy remains as an wlan access point.

      main.py: you find some options here. The most important option is ledNumber. Set this value correctly.

      Options:

      • dimm...
    • 19
      Dec - 2016

      PCB/Board designs
      2 min | 909

      #TI: Launchpads and rf24l01+

      PCB/Board designs | 2 min | 909


      rf24
      rf24network
      sensor mesh
      ti-launchpads

      Hi everybody,

      I am back again! After almost a-two whole week(s) of code cleaning and updating I've just uploaded two 'new' libraries:

      CC++ RF24: https://goo.gl/3fTmlJ
      RF24Network: https://goo.gl/KONmkU

      These libraries are an extension to the great nrf24 libraries provided by TMRh20 and allow to connect the nRF24L01+ to the following TI-Launchpads:

      In the following days I am updating some example codes for CCS (Code Composer Studio) and EAGLE files.

      Stay tuned!!!

      I am calling this project DIVA (#ProjectDIVA), a...

    • 07
      Dec - 2016

      PCB/Board designs
      2 min | 1304

      #TI: Connecting the tm4c1294xl to a ov7670

      PCB/Board designs | 2 min | 1304


      launchpad
      photos
      streaming video
      texas instruments
      TM4C1294XL
      web server

      Hi everybody!

      I have just uploaded two repositories related to the EK-TM4C1294XL!

      You can:

      C Take photos over serial interface: https://goo.gl/8PlS7y
      Stream (slow) video via webserver: https://goo.gl/gQDFTO

      Connect the OmniVision ov7670 -old but everywhere- (version with FIFO AL422B) to the LaunchPad Tiva™ C Series EK-TM4C1294XL and take photos over serial interface, or use the http webserver to get a (slow) video streaming.

      Things used in this project

      Hardware components

      EK-TM4C1294XEK-TM4C1294X x 1
      ov7670 with AL422Bov7670 with AL422B x 1
      CP2102 USB to TTL CP2102 USB to TTL x 1
      CP2102 USB TTL EK-TM4C1294XL Ov7670 AL422B
      CP2102 USB to TTL Launc...
    • 06
      Dec - 2016

      General
      2 min | 733

      #Blog: Starting this thing!

      General | 2 min | 733


      blog
      pagekit
      programming languages
      starting this thing
      website

      Hi everyone, my name is Mauro Riva and I have been working in Hannover, Germany since 2010. I am originally from Argentina (Capitán Bermúdez).  My programming languages are C, C++, C#, qt, python, VB.NET, html, javascript, node.js, php, mysql, matlab and some structured text for PLC and some java. Of course, I am constantly improving my skills for each language.

      C C++ C# qt Python vb.net html5 javascript nodejs php mysql Java Matlab

      I work at the Institute of Mechatronic Systems (Leibniz University Hannover) where I am finishing my PhD thesis on the field of identification and control (working title “Online Parameter and Covar...