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Analysis of the YouHodler user interface and their default risk assessment
Since about 4 months I’ve been using this site to keep my Crypto assets and I really like the User experience (UX) and also the design, both of the website and their Android / Iphone application. YouHodler is a DeFi platform where you can store your Crypto assets and get a yearly percentage interest, just…
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Repurposing the MIDI protocol to control Led Matrixes
Meet Remora-matrix a project that started with the idea to sniff MIDI messages and make simple visuals on a LED-Matrix. Our previous Firmware Remora was intended to receive short commands from ORCΛ and make very simple Neopixels animations on addressable LEDs stripes (WS2812B like)With this one I decided to go a step further and make…
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Understanding how to make good decisions when betting on Crypo Multi HODL bets
Multi HODL is an innovative tool to bet on price changes on Crypto assets invented by YouHodler.com . YouHodler is a Swiss based company that is innovating in the field of Crypto financials.I enjoyed a lot using Multi HODL but I was not well informed when I started with it and I make a lot…
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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…
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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…
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New epaper component for ESP-IDF
E-paper component driver for the ESP-IDF framework and compatible with ESP32 / ESP32S2 can be found in this repository: https://github.com/martinberlin/CalEPD Codenamed Cal e-pe-de for the initials of E-Paper Display this is basically all what I’ve been doing the last weeks. Learning more about C++ object oriented coding and preparing a class that can be used…
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Testing the new ESP32-S2
I got one ESP32-S2 Saola board and I will be making some tests on this repository: https://github.com/martinberlin/ESP32-S2 ESP32-S2 integrates a rich set of peripherals, with 43 programmable GPIOs which can be flexibly configured to provide USB OTG, LCD interface, camera interface, SPI, I2S, UART, ADC, DAC and other common functionality. ESP32-S2 provides the optimal HMI…
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Arduino-esp32 course – Espressif is on the www WebServer vs HttpClient – Chapter 4
Chapter 4 introduces code examples to make a server in ESP32
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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…
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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]…