Basically, The-Technology is all about hardware hacking tasks. Sometimes, however, the real trick in a task is rarely to build hardware, but to build a network around the hardware.
Case in point: [Brian Lough’s] newest project, which he nicknames “CYD,” after the “cheap yellow screen” on which it is based; which is much easier to forget than its official designation, ESP32-2432S028R. Whatever you call it, this card is bigger than it looks, with an ESP32 with WiFi, Bluetooth, a 320 × 480 resistive touchscreen, and niceties like USB and an SD card socket, all in the most sensitive part of the aforementioned yellow PCB. The good news is that you can get this product for around $15 on Ali Express. The bad news is, as is the case with Big Rock Candy Mountain hardware. , the only documentation we have comes from an online page that we wouldn’t touch even for a three-meter pole.
To solve this problem, [Brian] has what he hopes will be a collaborative effort to create a foundation of wisdom for CYD, to inspire other people to put those little gems to intelligent use. He already started this with a ton of quality documentation. adding installation and configuration instructions, tips and tricks, as well as some project examples that put the CYD features to the test. Everything is on GitHub and there is already at least one pull request; Hopefully that will increase once the word gets out.
Honestly, they seem like little forums that are a real bargain. We plan to gather some of them while the materials last, and maybe even get in on the action in this fledgling community. And kudos to [Brian] for starting this effort.
I searched for your Discord channel but couldn’t locate it. Discover doesn’t show anything called a reasonable yellow screen. It’s not a Discord pro, but I gave up after a few minutes of trying.
So, I’m going to ask the question here: Does CYD have an I2C interface? I think this could be an attractive tool for a family of devices I work with.
The Discord server you need is BrianLough. I also have this GitHub repository here: https://github. com/witnessmenow/ESP32-Cheap-Yellow-Display
To answer your query directly, yes, there are pins for I2C; here’s how Brian connects the nunchuck controller.
Click on the link to your assignment that leads to a YouTube video. Click on it to go to their YouTube page. Click on the About link and scroll down to the Discord link.
Did you know I was looking for a screen to place in rooms near lights, demonstrate temperatures, etc. A wonderful 3D published case for this and it solves it all?I threw one in my basket before. It’s wonderful to hear here too some other Irish voice for a change!
These look pretty! I just ordered one to build a helper driver for a Bamboo Lab printer that employs xtouch: https://github. com/xperiments-in/xtouch
I’ve got one of mine doing exactly that, works nicely.
How daylight visible is that display? Would it work in s car?
Ugh, also mdr
If you’re into CYD devices, it might be worth looking at https://github. com/rzeldent/esp32-smartdisplay which supports around 8 variants of Sunton’s ESP32 boards, covering 2. 4″ to 7″ displays, as well as no contact. , resistive and capacitive variants.
For me, this made it very easy to access the forums and saved me a lot of time.
They are worth (more than double) the value of the “CYDs” indexed here (at least for me).
You can use the bigger, more expensive displays, but it also supports the same 10€ display as the repo in the article.
GreatScott unearthed almost precisely the same board (minus R designation, plus USB C) a few weeks ago in his Aliexpress traul and test series: https://www.youtube.com/watch?v=IhnJra0XD4E
£10 UK shipping.
Needless to say, I have one in front of me. Needless to say, it’s not open yet. . .
It’s the same thing, but it uses another type of demo that doesn’t work as well. It also requires another setup for the demo.
https://github. com/harbaum/galagino/discussions/18#discussioncomment-6377292
The ESP3-d developer is running an all-in-one driver for 3D printers and Grbl for this family circle of https://github. com/luc-github/ESP3-d-TFT
I got a few of these during lockdown to have a play with and the main problem is trying to connect anything external as most of the sockets have various shared pins either between sockets or other parts of the board
As for downloads to those screens, there are quite a few, I just removed the directory with all the executables, I’ll have to check rzeldent/esp32-smartdisplay connected above, I checked the LVGL code the other week to allow the use of the newer versions of the LVGL libraries and Arduino_GFX instead of employing the older versions that come in the zip, which seem to be a bit faster and smoother.
(I hope the format doesn’t get too damaged when I post this!)
Merci. Je was looking for what the Chinese had ruined with this one. Their modules have bugs or weird design decisions. In particular, its weak point sometimes turns out to be a lack of attention to energy consumption. Spindle asinin tasks are also not uncommon.
Could you use them as an SSH terminal with a Bluetooth (or even USB) keyboard?
Thanks a lot. This turns out to be a very useful building block. As with the most popular DIY items, it’s the efforts of a few, then others, and finally a community, that have the biggest impact.
They gave it to me in yellow. I picked one that will be there until Thanksgiving. I can’t wait to see what it can do and how I can make a contribution to the community.
The 5-inch (ESP32-8048S050) and 7-inch versions of “cheap yellow display” have 800×480 resolution and ST7262 RGB displays that are driven using ESP32-S3 builtin LCD peripheral. This is delightful for emulation. I’m currently porting my Vector-06c-mini emulator to the 5-inch panel. 50 Hz updates are important for PAL computers and it’s nearly impossible to properly emulate on predominantly 60Hz desktops. With this panel I’m getting proper 50Hz screen refresh.
Documentation is rarely so terrible. There is a file that can be downloaded without any hassle and that includes the schematic and the list of parts used. You can refer to the knowledge sheets. Sample software based on some older versions of Arduino libraries is incredibly useful, but it can still be useful for pin definition references, for example.
Speaking of projects. . . Dear La-Tecnologia, what happened to La-Tecnologia. io?I can’t upload pictures anymore. The Feedback Project reported uploading photo disturbances since mid-October. I hope everything goes well.
Be kind and respectful to make the feedback segment great. (Comment Policy)
This site uses Akismet to reduce spam. Learn how your comment data is processed.