adafruit tft lcd raspberry pi made in china

Yes, in the meantime I"ve also noticed that the IC is mentioned on ALI too and I assume the missing last number is a mistake (or because it"s a replica) so its interface should be identical to the Adafruit original.

Oh mostly by coincidence I found a very similar display: http://www.wide.hk/index.php?route=prod ... duct_id=66 Here it makes associations between the pin descriptions:

Required a bit of measuring to find out what pins are connected on the bonnet and also a bit of guessing, but the first display worked instantly and the second soon after.

TheAdafruit Mini PiTFT - 1.3" 240x240 Color TFT Add-on for Raspberry Pi is your little TFT pal, ready to snap onto any and all Raspberry Pi computers, to give you a little display. The Mini PiTFT comes with a full color 240x240 pixel IPS display with great visibility at all angles. The TFT uses only the SPI port so its very fast, and leaves plenty of pins remaining available for buttons, LEDs, sensors, etc. It"s also nice and compact so it will fit into any case.

This display is super small, only about 1.3" diagonal, but since it is an IPS display, it"s very readable with high contrast and visibility. There was a little space on the top-left so Adafruit give you two tactile buttons on GPIO pins so you can create a simple user interface. On the bottom we have a Qwiic/STEMMA QT connector for I2C sensors and device so you can plug and play any of our STEMMA QT devices.

Using the display is very easy, we have a kernel driver and Python library for the ST7789 chipset. You can set it up as a console output so you can have text and user interface through the Raspberry Pi OS or you draw images, text, whatever you like, using the Python imaging library. Adafruits tests showed ~15 FPS update rates so you can do animations or simple video.

Comes completely pre-assembled and tested so you don"t need to do anything but plug it in and install our Python code!Works with any Raspberry Pi computer.

TheAdafruit Mini PiTFT - 1.3" 240x240 Color TFT Add-on for Raspberry Pi is your little TFT pal, ready to snap onto any and all Raspberry Pi computers, to give you a little display. The Mini PiTFT comes with a full color 240x240 pixel IPS display with great visibility at all angles. The TFT uses only the SPI port so its very fast, and leaves plenty of pins remaining available for buttons, LEDs, sensors, etc. It"s also nice and compact so it will fit into any case.

This display is super small, only about 1.3" diagonal, but since it is an IPS display, it"s very readable with high contrast and visibility. There was a little space on the top-left so Adafruit give you two tactile buttons on GPIO pins so you can create a simple user interface. On the bottom we have a Qwiic/STEMMA QT connector for I2C sensors and device so you can plug and play any of our STEMMA QT devices.

Using the display is very easy, we have a kernel driver and Python library for the ST7789 chipset. You can set it up as a console output so you can have text and user interface through the Raspberry Pi OS or you draw images, text, whatever you like, using the Python imaging library. Adafruits tests showed ~15 FPS update rates so you can do animations or simple video.

Comes completely pre-assembled and tested so you don"t need to do anything but plug it in and install our Python code!Works with any Raspberry Pi computer.

One thing I’ve learned over and over from working on the Raspberry Pi is that it’s most likely going to take a chunk of time to get things set up just the way you want.  And this display is no different.

I’ve written in the past about How to Play HD Video on a Raspberry Pi — so this is a continuation from a Raspbian Linux distribution image already in that state.  I was feeling lazy and didn’t want to write this post, but if I ever have to do this again I don’t want to have to google so many steps again.  So hopefully you’ll find this useful as well.

First I tried the instructions from here: Adafruit: Detailed Installation before realizing the available manual has an auto-configure option.  But I couldn’t get these working at first because the Debian package mirrors wouldn’t work so I had to modify my apt sources list to use some working mirrors. The download of the adafruit-pitft-helper package was still unavailable to me via apt but you can get it from Github.

You need to run this script adafruit-pitft-helper specifically to enable the console on your display.  The manual instructions on their website do not tell you how to do this, only for enabling the display for the graphical interface X11.  This script does the heavy lifting.

At this point the terminal is all set for your display.  Following this I will show you how to enable high definition video playback on your TFT display from the command line.  I won’t go into setting up the touchscreen for the X11 desktop, you can refer to the manual for that.  Personally I don’t think the Raspberry Pi makes a good desktop system as it’s slow, I much prefer the console.

If you try the omxplayer from the previous blog post you’ll find the video doesn’t show up on the display.  The reason is that it’s rendering on frame buffer 0 when the TFT is using frame buffer 1.  To get around this you need to use frame buffer copying with the fbcp program.  The instructions they provide are close but don’t follow the second modprobe command (as it messed up my display).

I changed the Adafruit libraries for TFT: GFX , TFTLCD and TouchScreen. I join all in this one library, the library SPFD5408, to avoid problems with duplicate libraries and enables also have the original library Adafruit ready for use in other projects with another TFT hardware.

LCD, or Liquid Crystal Displays, are great choices for many applications. They aren’t that power-hungry, they are available in monochrome or full-color models, and they are available in all shapes and sizes.

Waveshare actually has several round LCD modules, I chose the 1.28-inch model as it was readily available on Amazon. You could probably perform the same experiments using a different module, although you may require a different driver.

Another difference is simply with the labeling on the display. There are two pins, one labeled SDA and the other labeled SCL. At a glance, you would assume that this is an I2C device, but it isn’t, it’s SPI just like the Waveshare device.

The Waveshare device comes with a cable for use with the display. Unfortunately, it only has female ends, which would be excellent for a Raspberry Pi (which is also supported) but not too handy for an Arduino Uno. I used short breadboard jumper wires to convert the ends into male ones suitable for the Arduino.

The Waveshare Wiki does provide some information about the display and a bit of sample code for a few common controllers. It’s a reasonable support page, unfortunately, it is the only support that Waveshare provides(I would have liked to see more examples and a tutorial, but I guess I’m spoiled by Adafruit and Sparkfun LOL).

Open the Arduino folder. Inside you’ll find quite a few folders, one for each display size that Waveshare supports. As I’m using the 1.28-inch model, I selected theLCD_1inch28folder.

Once you do that, you can open your Arduino IDE and then navigate to that folder. Inside the folder, there is a sketch file namedLCD_1inch28.inowhich you will want to open.

The error just seems to be with a couple of the Chinese characters used in the comments of the sketch. You can just ignore the error, the sketch will compile correctly in spite of it.

You can see from the code that after loading some libraries we initialize the display, set its backlight level (you can use PWM on the BL pin to set the level), and paint a new image. We then proceed to draw lines and strings onto the display.

Unfortunately, Waveshare doesn’t offer documentation for this, but you can gather quite a bit of information by reading theLCD_Driver.cppfile, where the functions are somewhat documented.

This library is an extension of the Adafruit GFX library, which itself is one of the most popular display libraries around. Because of this, there isextensive documentation for this libraryavailable from Adafruit.  This makes the library an excellent choice for those who want to write their own applications.

As with the Waveshare sample, this file just prints shapes and text to the display. It is quite an easy sketch to understand, especially with the Adafruit documentation.

Here is the hookup for the ESP32 and the GC9A01 display.  As with most ESP32 hookup diagrams, it is important to use the correct GPIO numbers instead of physical pins. The diagram shows the WROVER, so if you are using a different module you’ll need to consult its documentation to ensure that you hook it up properly.

The TFT_eSPI library is ideal for this, and several other, displays. You can install it through your Arduino IDE Library Manager, just search for “TFT_eSPI”.

In order to run this sketch, you’ll need to install another library. Install theTjpeg_DecoderLibrary from Library Manager. Once you do, the sketch will compile, and you can upload it to your ESP32.

The Animated Eyes sketch can be found within the sample files for the TFT_eSPI library, under the “generic” folder.  Assuming that you have wired up the second GC9A01 display, you’ll want to use theAnimated_Eyes_2sketch.

The GC9A01 LCD module is a 1.28-inch round display that is useful for instrumentation and other similar projects. Today we will learn how to use this display with an Arduino Uno and an ESP32.

A parallel RGB interface up to 24 bits is available on all Raspberry Pi boards with the 40-way header (A+, B+, Pi2, Pi3, Zero) and the compute module. This interface allows to connect parallel RGB displays to the Raspberry Pi GPIO either in RGB24 (8 bits for red, green and blue) or RGB666 (6 bits per color) or RGB565 (5 bits red, 6 green and 5 blue).

This mode is accompanied by new overlays, which allow to produce an RGB signal thanks to the VGA666 (get the 666 passive VGA adapter for Raspberry-Pi B+ : code and hardware).

To be clear, I"m speaking of the mainstream SBC Raspberry Pis, like the Pi 4 model B, the Compute Module 4, the Pi Zero 2 W, and even in many cases the Pi 400. The Pico and Pico W are both readily available, at least in most markets where I"ve looked (local shortages always exist, but typically not for months or years like with full-size Pis).

A service has even been set up since early this year just to scan different vendors to find when Pis are in stock, and alert people via Twitter and other means. Long-time followers of rpilocator.com know how short-lived Raspberry Pis are at official retailers like Adafruit and Pi-Shop, even with purchasing limitations in place.

Sadly, the only reliable way to buy a Pi immediately is to pay scalping prices on eBay or buy bundles that include often-unneeded components to pad out the price of a normally-$35 Pi to $100 and beyond.

Raspberry Pi is one of the few SBC vendors (maybe the only one) to tackle the most important feature for adoption and ongoing end-user happiness: support.

Instead of throwing hardware at the wall, seeing what sticks, and relying on developer communities to support their hardware with distributions like Armbian, Raspberry Pi actively supports their boards, all the way back to the original Pi model B. They ship Raspberry Pi OS. They continually improve their documentation and focus on a great end-user experience for beginners and advanced users.

And because of the second point, Raspberry Pi can produce a limited number of Pi models based on the Broadcom BCM2711 SoC. This is the same issue plaguing car manufacturers. Even behemoths like Nvidia, Intel, AMD, and Apple are still being affected.

Because of the shortages, Raspberry Pi have not been able to increase production to meet demand, therefore they have to prioritize where the Pis they make go... and right now they are still prioritizing OEM partners over end-user retailers like Adafruit, PiShop.us, Micro Center, and other retailers selling individual units.

This is far from ideal, and many in the maker/hacker community (myself included) feel betrayed by an organization that grew quickly based on the grassroots adoption of the Raspberry Pi since 2012.

How many of the commercial and industrial users of the Pi would be incorporating it into their products (thus depending on Pi stock for their own survival) without the huge community of individual developers, makers, hobbyists, and educators who made the Raspberry Pi as popular as it is today?

With all this in mind, and since there hasn"t been an official update since Eben Upton"s post on the Raspberry Pi blog in April, I asked directly about the shortage. Eben said, basically:

We value our approach to software support, maintenance and quality over and above everything else. You can be confident that our software will run on all Raspberry Pis even those now over ten years old, and it is still being updated!

Indeed, that"s why people pay double, or even triple, the MSRP for a used Raspberry Pi. For some projects, getting things running on the Pi (and knowing they"ll have software updates for years) is still much easier than doing the same on another SBC.

And though the Pi 4"s BCM2711 is getting long in the tooth—most competing boards are already far surpassing it in CPU, memory, and IO performance—it is still a great option for energy-efficient computing and certain edge use cases.

If you want a slightly faster and more generic computer, buying a used "one liter" PC (one of those little PCs you see strapped to a monitor at a doctor"s office) can get you something on par with—or faster than—a Pi 4 for less than $80, or cheaper if you get lucky. But these PCs lack some features like GPIO or any kind of HAT compatibility, so are only an option if you use the Pi as a generic computer.

If you want a comparable SBC with features like GPIO and a faster CPU and GPU, with native SATA ports or other more exotic features, Khadas, Radxa, OrangePi, and other vendors have made some great hardware over the past two years, with many options under $100.

But getting started with a Pi clone can be daunting—unlike the first-time experience with a Pi, where you have helpful Getting Started Guide and a plethora of blog posts, videos, and books available, you may encounter a sparse documentation page (if anything) pointing you to an ISO download and telling you to flash an image to a microSD card.

Where Raspberry Pi assumes nothing and guides you along every step, most other manufacturers assume you"re familiar with SBCs, flashing ISOs, and quite possibly debugging problems over a USB serial connection!

But the CB1 is an outlier in my experience. Almost every non-Pi board I test requires more work than just "download ISO, flash it, and the SBC boots and works". Some images don"t have basic functionality like HDMI or networking, and sometimes you can"t even find an image with a modern and secure Linux OS, only Android images (which is unhelpful for general use).