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  • Design UX on epaper with ESP32. Add touch!

    When I first bought one Good Display 2.7 inch epaper with a FocalTech touch panel, it was a curiosity that I never though it will call my attention, and will end up in one of the wood boxes under my desk. This is the short story of how this small piece of technology really caught…

  • Using WiFi epapers to showcase digital art

    Recently I stepped upon superrare.co that is a marketplace to collect and trade unique digital artworks. This and the fact that I follow Josh Katzenmeyer that is a member of this network made more aware of the fact I enjoy watching this artworks very much and got me interested about it. My idea is very…

  • Arduino-esp32 course – Espressif is on the www WebServer vs HttpClient – Chapter 4

    Arduino-esp32 course – Espressif is on the www WebServer vs HttpClient – Chapter 4

    Chapter 4 introduces code examples to make a server in ESP32

  • Arduino-esp32 course – General-purpose input/output (GPIO) – Chapter 3

    I want to state here that I’m not an electronics engineer and I know the basics only after years of tinkering and because I use to soldier PCBs for my father since I’m 8 or so. So if there is anything that is not correctly explained just comment and I will try to document it…

  • Arduino-esp32 course – Event driven WiFi and build_flags configuration – Chapter 2

    Arduino-esp32 course – Event driven WiFi and build_flags configuration – Chapter 2

    On this new release we will focus on connecting our Espressif board to WiFi and will also the powerful build_flags to inject the defines directly on compilation time. This will make our WiFi configuration easier and leave it in a place where it can be easily configured, again in our platformio.ini project configuration file: [env:espressif8266]…

  • Arduino-esp32 Basic course – Getting started – Chapter 1

    First of all, this small series of blog posts, assume you have installed and are familiar with Platformio IDE to edit and upload code to your Espressif chips. We ‘ve covered in another post the installation and getting started part with this nice IoT editor. Please refer to this section of Platformio to get the…

  • Hackaday projects update: CALE Eink Calendar and udpx

    I must say although I’m not proud of all the projects I tried to document in Hackaday I do like a lot udpx and Remora, that are made initially to control Addressable LEDs, but they could be expanded and used for another uses. CALE This is actually an old project for the agency I work…

  • PHP Symfony versioning and composer

    Lately I’ve been switching to new versions and upgrading Symfony for client projects that I cannot reveal, but what I would like to share in this simple and short post is what combinations worked for me after many hours switching versions and dependancies. Symfony 4 This is the easiest one since is the last version…

  • Cordova cross platform mobile applications

    After the small Chrome App experience that resulted in a very compact app that reads Video and sends an UDP binary stream to ESP32 Led controllers I decided to start learning how to program a real mobile app. Real because I find that the way to do it must end in the App Store and…

  • Building Visual Code in a Raspberry Pi

    When I’m on the road without laptop I miss having something to compile Espressif boards. So I decided to document this a little bit.Visual Code is the base for Platformio that is my IDE of choice when coding in C / C++ It turns out that for ARM like many other software you need to…