• Digital Camera FS2

    3d Render Materials list Days after publishing this post about ArduCam and ESP8266 I got some good feedback and 2 friends asked me to get one Camera. At the same time my new 3D Printer “Prusa MK3” has arrived so I decided to make a case remake and release a new small Low-Resolution, instant WiFi…

  • Chasing sunsets

    Chasing sunsets in Mallorca till 3 September.  Coming back to the usual topics after holidays. Till then is only important to swim naked and chase sunsets. Enjoy the ride

  • ArduCAM plus Espressif equals WiFiCAM

    I’ve been having some fun taking pictures last weekend with a self built camera. It costs about 15 € in Ebay and summing up the 6 of the ESP8266 Wemos D1 it makes a total hardware cost of 21 euros. Let’s say 35 if you add a Lion battery and an USB charger to it.…

  • Postman self documenting tests and runner import

    Postman self documenting tests and runner import

    I’ve been working on the last days doing extensive API testing and needed to find an easy way to document my tests. Postman offers already something very useful that uploads your tests documentation to their website. But sometimes we need just a simple HTML that can be privately delivered to the client. That’s where this…

  • 3D Printer upgrade

    Since last year, when I started 3D-printing, I bought my first printer just to see if I find my way into it. Since then I found out that I could remember my days in the university studing graphic design and that I can actually design pretty well. But from that to product design there is…

  • Reading an image bitmap file from the web using ESP8266 and C++

    There are a couple of different ways to do it, but I wanted to do it after a simple image example, to understand a bit better how reading a stream from the web to get as far as the pixel information and send it to a display. As a reference then I started with ZinggJM/GxEPD…

  • E-Paper driver to make your electronics smaller

    Got from Waveshare some of this E-Paper ESP8266 driver boards: I’m trying to make the electronics of my displays as small as possible and to avoid the wire-chaos inside the case with the goal of having more space for the battery. This will basically spare the need of the driver HAT and additional cables, something…

  • IoT E-ink display first prototype

    It’s of course a bit rough on the edges. But is the first working prototype and the case plus electronics need an update. Thanks to Rayner for his case modification plus 3D print effort. Credits: Anthony Virtuoso for his Waveshare 7.5 display case. (New York, http://anthonyvirtuoso.com) Display

  • Parse website to monochrome image and send to display

  • Installing web screenshot programs in Amazon AWS AMI servers

    Installing in my Amazon instance some image manipulation tools, I want to share the two command-lines that saved me a lot of time in this post: (credits given) Go to https://wkhtmltopdf.org/downloads.html and depending on your version download the CentOS, for me the right was CentOS 7 x86_64 Then you can simple take screenshots of the…