klotz: esp32* + arduino* + github* + display*

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  1. 2021-07-12 Tags: , , , , , , , by klotz
  2. 2020-12-20 Tags: , , , , , , , by klotz
  3. frittna 2 months ago @op8 @op8 sorry for the late reply, thank you very much, i still love it to watch the price on it. The M5 core is the regular black framed M5-core and the bottom is the M5GO/FIRE Battery Bottom Charging Base SKU:A014 from this M5-Stack-Shop (do not forget to buy the chargning base plate as i did, these are 2 seperate items to buy) It has the rgb-led strip built-in but it is only barely used in my code.. My Intention was to show major price movements with red/green flashing lights (and sounds) for example. Unfortunately i did not implement more functions since then. A little problem i have experienced is the wake-up behavour on usb-cable because with the battery base it behaves different as it is with standart battery back. But this can be solved in the code if you change the settings at //Power Settings

    2020-12-20 Tags: , , , , , , , by klotz
  4. Works with GxEPD library using GxGDEW0213Z16 display type. Not GxEPD2 :-(

  5. By now you know this repository is crap. This is what worked for me on a 1.54 e-ink display. It should work on other sizes as well.

    NOTE: This display requires 3.3 data lines. It works on 5v data lines, but just barely. The display is not crisp. I've read it's possible to use a 10k/4k7 resistor divider for 5v data lines, but it didn't work for me.

    Download this library https://github.com/ZinggJM/GxEPD

    From Arduino IDE, open the example

    Select this display #include <GxGDEH0154D67/GxGDEH0154D67.h> // 1.54" b/w

    Use these pins GxIO_Class io(SPI, /CS=/ 10, /DC=/ 9, /RST=/ 8); GxEPD_Class display(io, /RST=/ 8, /BUSY=/ 7);

    Connect as follows (display / arduino): VCC / VCC GND / GND D/C / D9 SDI / D11 CS / D10 CLK / D13 BUSY / D7

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