Tri-Color 4.2inch E-Ink Display Module Resolution 400x300 3.3v E-Paper Electronic Screen Panel SPI Interface for Raspberry Pi/STM32/Arduino/Jetson Nano

Der Bildschirm kam wirklich sehr schnell - Respekt vor Coolwell, gerne wieder.Der Waveshare Tri-Color 4.2 Inch ist sehr wertig und solide. Mit einem Wort: Kasse! Durch den Anschluss für die Verdrahtung kann man ohne Löten sofort beginnen.Wenn das mal so einfach wäre. Die Dokumentation ist schlecht, die Library so aufgebaut, dass sämtliche e-Paper Bildschirme von in einem Projekt zusammengefasst sind. Wenn die (c/c++ SDK Pi Pico) Library für den gekauften Bildschirm isoliert werden soll, sollte man schon wissen, was man tut. Der Tricolor kann vom Hause Waveshare aus nur als ganzer Bildschirm aktualisiert werden. Das Flackern (von Waveshare als unabänderbar hingestellt) nervt schon gewaltig. Mein Kindle e-Reader hat das Problem nicht.Einen partial Refresh ist bei mehrfarbigen Bildschirmen nicht vorgesehen. Insgesamt wird die Software der Hardware nicht gerecht. Das ist sehr schade.

Very good for the price. Read the key specs before buying though! It has a nearly 1-minute refresh time and doesn't really work with many Arduino models due to memory constraints and the 3.3 V pin (but no 5 V) - and the Pi has 3.3 V GPIO pins and Arduino 5 V I think.I'd recommend their 2-colour 2.9 inch ePaper module (I also bought that one) if you want a much smoother framerate (ish). That one is just about suitable for animations. It has the exact same pinout which is nice.Documentation is very good compared to most accessories like this from other brands. Also very well built, it does flex but not anywhere near as much as most imported components I've used, and I'm not worried about this breaking.I can't compare this to the e-ink displays on some Kindle devices, but I do own an e-ink style Pebble Time smartwatch and it's pretty noticeable how much easier this panel is to read in darker lighting conditions. This doesn't have a backlight though, although a light-dependent resistor and a few LEDs do the trick.Bought this for a coursework project as part of my computer science degree, it impressed my friends, worked well, and I look forward to using it in some personal projects in the future.

Good but the first one I had died within days without reason. Second still working almost a year later

Es will leider nicht Laufen unter raspberry