# E Ink display tested


## Bought E-Ink display
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![E Ink display and Driver](/uploads/2024-10-e-ink/IMG_7098_resized.jpg)

![Connect display and driver](/uploads/2024-10-e-ink/IMG_7100_resized.jpg)

First of all, I tried to search the reference with `despi c097 esp8266` to see the cabling between esp8266 and the driver board.

![despi c097 esp8266 google search result](/uploads/2024-10-e-ink/Screenshot%20from%202024-10-21%2020-58-14.png)

Ahhh... there is no reference.

What should I do? I visit, the [product page](https://www.good-display.com/product/519.html) but the page only provides technical specification and schematics.
I just want to run a `MicroPython` code to display. (I found, after a successful result, this is not that kind of simple, like turning on the led)

I re-visited the product page of Aliexpress. there is! a product demo code.

![demo code of the product page](/uploads/2024-10-e-ink/Screenshot%20from%202024-10-21%2021-27-13.png)

I have `wemos d1 mini` so, I downloaded `blabla-ESP8266 sample code`.

It is a arduino code. not a micopython code..
![opened sample code in arduino ide](/uploads/2024-10-e-ink/Screenshot%20from%202024-10-21%2021-31-31.png)

Connect the cables that found in the arduino code,
![Connect cables found in arduino code](/uploads/2024-10-e-ink/IMG_7102_resized.jpg)

There is two more connector that is not specified in the code (SCK and SDI).
What I can do is to ask GPT.

![Ask gpt about how to connect remaining connectors](/uploads/2024-10-e-ink/Screenshot%20from%202024-10-21%2021-40-57.png)
(first, i mistakenly connected mosi? or miso? to SDI, after changing it, it finally worked.)

**FINALLY**

the display shows the demo screen!

![Finally the display shows sample](/uploads/2024-10-e-ink/IMG_7104_resized.jpg)

## Reference

- Product Link : [Aliexpress](https://www.aliexpress.com/item/1005006669884360.html?spm=a2g0o.order_list.order_list_main.11.712d18024MSoRs)
- Demo code for ESP8266 : [Demo code](https://www.good-display.com/comp/xcompanyFile/downloadNew.do?spm=a2g0o.detail.1000023.8.6b6cuRUDuRUDXQ&appId=24&fid=1937&id=1376)