round lcd display raspberry pi quotation

You could argue that the project to add a round screen to a Raspberry Pi from [YamS1] isn’t strictly necessary. After all, you could use a square display with a mask around it, giving up some screen real estate for aesthetics. However, you’d still have a square shape around the screen and there’s something eye-catching about a small round screen for a watch, an indicator, or — as in this project — a talking head.

The inspiration for the project was a quote from a Google quote about teaching a monkey to recite Shakespeare. A 3D printed monkey with a video head would be hard to do well with a rectangular screen, you have to admit. Possible with a little artistry, we are sure, but the round head effect is hard to beat. Honestly, it looks more like an ape to us, but we aren’t primate experts and we think most people would get the idea.

The IPS screen is tiny at only 1.28 inches and has a 240×240 resolution. Interfacing is simple with an SPI interface. You’d think video playback might be tough, but the flexfb library knows how to drive these. The only problem is the library isn’t compatible on Linux kernel 5.4 and beyond.

To solve that problem, [YamS1] used a Raspberry Pi 3 with a specific software load. For a dedicated device like this, that shouldn’t be a problem and gives you a good excuse to recycle those older Pi boards you have sitting around.

We’ll be honest. You probably don’t want a talking monkey sculpture on your desk. But if you do, this is your lucky day. However, the possibilities for a round screen are numerous and one that can play video has even more usefulness. Maybe the thing for your next robot or cosplay mask eyes or why not 3D print a tiny replica of a vintage oscilloscope and use this display for the CRT? Of course, a smartwatch is too easy but would work, too. You could also make some very cool replacements for magic eye tubes.

Thanks for the reply, were just looking at testing some different screen. how hard would it be to upload three different photos on the raspberry pico and display them on to the waveshare round 240×240, LCD Display Module

When you first posted this morning, I didn"t think there were any drivers for GC9A01-based displays. But then Tod Kurt comes through with this demo/example in CircuitPython: https://github.com/todbot/CircuitPython_GC9A01_demos

Thanks for the reply, were just looking at testing some different screen. how hard would it be to upload three different photos on the raspberry pico and display them on to the waveshare round 240×240, LCD Display Module

As I said, it depends on how much existing software can be re-used in your application, and whether it is licensed appropriately. Writing code to interface these displays isn"t trivially easy, and having stuff already available makes a big difference to how long the job takes. But if there is open-source software available and it"s licensed, say, GPL, then that will control the way you can distribute your own code. That may, or may not, be relevant in your application.

There are other uncertainties as well -- more technical ones. You say you want to display photos -- what format are they? Are they already scaled to fit the screen, or will the software have to do that? How important is colour accuracy? Do the switch contacts need to be debounced? Most importantly, perhaps -- if it all went horribly wrong, how big a deal would that be? I assume it"s not air traffic control but, if something went wrong, does your business end up losing sales?

If I were doing a job like this just for my own satisfaction, for use only on my workbench, I might throw something together in a few hours -- assuming I could re-use somebody else"s low-level display driver. If I had to write the low-level code myself, I suspect I"d need ten times that long -- longer if the commercial conditions meant that I needed to be really careful to avoid infringing anybody"s IP rights indirectly. If it all had to be fully tested to commercial standards, multiply by ten again. If I was expected to assign copyright in the final software to somebody else, multiply by ten again (because I"d be unable to re-use my own code in other applications).

When you first posted this morning, I didn"t think there were any drivers for GC9A01-based displays. But then Tod Kurt comes through with this demo/example in CircuitPython: https://github.com/todbot/CircuitPython_GC9A01_demos

When you first posted this morning, I didn"t think there were any drivers for GC9A01-based displays. But then Tod Kurt comes through with this demo/example in CircuitPython: https://github.com/todbot/CircuitPython_GC9A01_demos

Quickly looking at the datasheet the GC9A01 seems to be a standard MIPI DCS chip. I do not have this specific driver at hand but you should be able to use it with the HAGL + Pico MIPI DCS HAL combination.

There is a general misunderstanding that all display drivers need a separate driver. Luckily this is not the case. Ilitek, Sitronix and Galaxycore seem to follow an agreed standard. Although also they do have some older drivers with a non-standard command set. Solomon uses it"s own command set which also differs between the chips.

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some jokes (dark jokes preferably, because I"m a horrible human being) displayed from JokeApi. I basically copied the example script and started from there.

This is a 1.28” LCD Display Module with an input voltage of 3.3V ~ 5.5V, which is used to display colorful patterns and characters. The driver used in this LCD is GC9A01, with a resolution of 240RGB×240 dots and 129600 bytes of GRAM inside. This LCD supports 12-bits/16-bits/18-bits data bus by MCU interface, which are RGB444, RGB565, RGB666. This LCD uses a 4-line SPI interface for reducing the GPIOs used. If you are wondering which point is the first pixel of the screen (because the screen is round), you can understand it as a square screen with an inscribed circle drawn in it, and it only displays the content in this inscribed circle. The pixels in other locations are simply discarded (just like most round smartwatches on the market).

RP2040-LCD-1.28 is a high-performance MCU board designed by Waveshare which incorporates a 1.28inch LCD round display, Li-ion battery charger, 6-axis sensor (3-axis accelerometer and 3-axis gyroscope) and so on, adapting all GPIO and Debug headers, which makes it easy for you to develop and integrate it into products quickly.

All GPIOs are adapted through 1.27 pitch female headers (There are 30 pins in total, but some pins have been connected to the internal circuit, you need to pay attention when multiplexing, please refer to the wiki for details)

For instance, a Raspberry Pi 3 Model B has a higher power requirement (2.5A) and, thus, necessitates a specific power brick. It will definitely still work, but a Raspberry Pi 2 Model B

The ideal board for the job is the £9.30 or AU$14.96) for the board. To set up and connect the Raspberry Pi, you will need a short HDMI cable and a microSD card of at least 8GB.

Finally, you will need supplies to mount the Raspberry Pi, the monitor"s power supply, all the cables and the female end of the extension cord on the back of the monitor. I used two-sided mounting tape. And I used duct tape to keep the excess cord attached as tightly to the back of the monitor as possible.

Typically, there isn"t enough room to install a Raspberry Pi inside the original backplate -- unless you"re using a Pi Zero W. Even then, the excess cords and the power supply for the monitor won"t fit. The monitor will sit closer to the wall without the back cover, so it"s best to discard it.

Connect the Raspberry Pi to the HDMI port on the monitor and -- without plugging in the extension cord -- connect the power cables to both the Raspberry Pi and the monitor. Use this to figure out the best layout of all the parts to keep everything as slim as possible.

As for the picture-hanging wire, there were no decent places to connect on the Dell monitor I used, so I drilled one hole on either side of the rear bezel that held the back cover on. This is where you might have to get creative, since no two monitors are the same.

Surprisingly, this project doesn"t require any special code for the Raspberry Pi. In fact, it will be running on Raspbian OS, a Linux distribution specifically for the Raspberry Pi.

DAKboard is the web interface used to display all the information on the monitor. It can be set up from the Raspberry Pi or from a computer, phone or tablet.

For background options, you can choose between a host of different sources, such as Instagram, Google Photos, Dropbox, OneDrive, Bing, Flickr, etc. After that, you can connect up to two ICAL calendars for free, select between Yahoo and AccuWeather for the forecast source, add a single RSS feed for rotating headlines, and connect Todoist, Wunderlist or Microsoft To-Do as a task manager to display and add a custom message to the DAKboard.

By upgrading to DAKboard Premium, which starts at $4.95 per month (no specific info about international pricing and availability), you can unlock the ability to add additional calendars, set a Vimeo, YouTube video or website as the background, select

The idea is that, when powered on, the Raspberry Pi will automatically boot to your DAKboard. If you want to hang the monitor vertically instead of horizontally, you will also need to rotate the display.

First, power on the Raspberry Pi, open Terminal and type in sudo raspi-config. Once in the configuration tool:Go to Boot Options > Desktop Autologin Desktop GUI and press Enter.

Next, you will want to edit the config.txt file to rotate the screen 90 degrees. In Terminal, type sudo nano /boot/config.txt and press Enter. This opens the config file in the nano text editor. Add these lines to the end of the file (without the bullet points):# Display orientation. Landscape = 0, Portrait = 1

Finally, to force the screen to stay on and automatically boot with dakboard.com loaded in Chromium, type sudo nano ~/.config/lxsession/LXDE-pi/autostart and press Enter. Inside nano, add these four lines (without the bullet points):@xset s off

Once the Raspberry Pi has fully rebooted, use a connected mouse and keyboard to log in to DAKboard. Click Login and enter your credentials. Your DAKboard should load with your previously configured settings. If you want to change anything, click the settings cog in the upper right corner of the display (move the cursor to make it appear).

Hang the monitor on the wall and you"ll have yourself a digital clock and calendar, the week"s forecast, important headlines and beautiful pictures on display all day.

DAKboard is a great way to set up a Raspberry Pi display in a hurry. It"s easy and user-friendly and it looks great. However, it has its limitations and encourages users to upgrade to Premium to unlock the best features.

ow … ound … round … ground - this unconventional round display is ideally shaped for things like watch faces, speedometers and displaying data in interesting circular ways like pie charts and polar area graphs. You could also use it to add animated eyes to cosplay masks, build a moon phase tracker or just for displaying all the best round GIFs of pizzas, hypnotic spirals and chonky animals.

This IPS display so it has great viewing angles and it"s super-crisp and bright. It"s driven by SPI and you should be able to run it at up to ~60FPS, although we"ve found that anywhere from 10FPS looks good for most uses.

This breakout uses the same ST7789 library as the square version. The library makes it straightforward to display images, text or graphics, and even display animated GIFs! If you"re using a Raspberry Pi, you can install it with:

Our Python library is set up to use SPI 0 by default on the Pi (BCM 7 for CS, BCM 11 for SCK, and BCM 10 for MOSI), BCM 9 for DC, and BCM 19 for the backlight.

The HyperPixel 2.1 Round has all the features just like the other HyperPixels - very bright, IPS display, touchscreen and high-speed DPI interface. You can use it with any Raspberry Pi with a 40-pin header but it fits particularly well on the Raspberry Pi Zero - Pimoroni has designed it so that you can mount a Zero neatly behind it so that it is no longer visible from the front.

This version of the HyperPixel is ideal for custom interfaces and control panels; mounted on a wall, for example, it can be used as a smart home controller, or as a control panel for your sound system. Everything is pre-soldered and ready to use, all that needs to be done is to install the right software(see the links under Features).