raspberry pi 1.8 tft display price

TFT TFT screens are a type of LCD screens that provide an even sharper and brighter image and are even flatter. The big difference with an LCD screen is that in the TFT screen for each sub-pixel a very small transistor is built into the glass plate that can contain the information of each sub-pixel.

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In a recent Raspberry Pi Geek article [1], I showed how to make short videos for small, portable Raspberry Pi-powered devices, such as my fourth-generation Steampunk conference badge (Figure 1).

This time, I"ll explain how to get that little 1.8-inch TFT color display [2] working on a Raspberry Pi, so you can show your own movies. Maybe you"d like to build your own conference badge, a video picture frame, or a small animated sign. The Rasp Pi is definitely fast enough to run videos at 30 frames per second on the little screen.

My conference badge runs on a Raspberry Pi 2 (RPi2) Model B [3]. Fortunately, you can successfully use small TFT displays with the earlier Raspberry Pi 1 (RPi1) model B+, as well, by simply moving the microSD card, keyboard, mouse, and cables over to the RPi1 and then restarting everything. There"s no lag or problems running videos with either model.

You might want to consider not moving up to the latest Raspbian Jessie release, because the application that plays a movie – MPlayer [5] – has been swapped out for the now unsupported MPlayer2. At the time of writing, the required FBDev modules for MPlayer2 were not installed in the release, so the application refused to play a movie on a tiny display using the framebuffer. It works fine for an HDMI-attached big screen in an X window-based desktop, just not on a small LCD running as a framebuffer.

I spent considerable time trying to troubleshoot the problem and was unable to find a way to get MPlayer2 to work. Even worse, the regular MPlayer application isn"t offered as an option in Jessie. As a result, when working with the small LCD displays connected to the GPIO pins, you should stick with Wheezy until the problem has been sorted out. Using Wheezy is a practical solution, and it"s absolutely capable of providing a great wearable-device experience, especially on the quad-core, 1GB RAM-equipped RPi2.

I built my cable from an old 40-pin PC IDE hard drive ribbon connector, some repurposed 22-gauge wire from a Category 5 (CAT5) cable, and a 10-pin female connector. Take the retainer off the ribbon connector and gently remove the ribbon cable from the pins. I then soldered the CAT5 wires to the tiny pins using a 25-watt soldering iron. A "helping hand" device was instrumental in lining the tiny wires up to the tiny connector pins.

The plastic around the pins and wire insulation melt quickly, so use as little heat as possible when making the connections. A traditional magnifying work light is also invaluable for getting the right wire on the right connector. Figure 2 shows a close-up view of the connector that attaches to the Pi.

Being able to swap parts around quickly is important, because I have a number of different projects in the works at any one time, and I usually don"t have boxes of extra TFT displays and other components just lying around. Using parts in multiple projects is a fact of my technology writing life. Happily, connectors are cheap, and I go to the little extra effort of using them on everything to facilitate rapid prototyping of my mix-and-match tech project schemes.

You"ll need 10 wires going from the Pi 40-pin connector to the TFT display"s 10-pin terminator (Figures 3 and 4). I split a couple of CAT5 cables and extracted the pairs, covered one end with tape, and snaked them through a length of 3/8-inch thick woven paracord, with the inner core removed. The covering gives an antique Steampunk look to the cord on my conference badge. I lightly melted the ends of the cover, to keep it from unraveling. Some tightly wound wire kept the ends from bunching toward the center of the cable.

Copying the image onto the card should take about three to five minutes. When completed remove the card from the Linux notebook and insert it into the Raspberry Pi"s card slot. Apply power, and you"ll immediately go into the raspi-config app.

Table 2 shows the settings I changed while in raspi-config. Pay particular attention to expanding the filesystem, enabling SSH, and enabling/loading the SPI drivers. If you forget to expand the filesystem, installing the display drivers from the rpi-update process will fail with an out-of-disk-space error.

Enabling SSH lets you log into and control the RPi2 remotely without a monitor, such as in a wearable conference badge situation. Once the Rasp Pi reboots, log in to the command line in a terminal.

The kernel drivers included in Raspbian Wheezy must be installed before they"ll work, which is accomplished with an rpi-update to the firmware. Make sure you have connectivity to the Internet; otherwise, the update will fail here, as well. Fortunately, Raspbian uses the wired Ethernet connection, out of the box, so this shouldn"t be a problem if you can connect a cable to the Rasp Pi and the router. Alternately, you"ll have to log in to the Pi while hooked up to a monitor to set your access point and WiFi passcode.

Keep an eye on the LCD screen, and you should see the backlight come on after a short period. If you have a 2.2-inch display, use adafruit22 as the device name. Other displays have similar designations.

You"ll also need a short video file to display on the color LCD. I had some on my Linux notebook, in my drtorq directory and copied them over to the Raspberry Pi:

The SmartiPi Touch Pro is a case for the Official Raspberry Pi display and Raspberry Pi 2, 3, and 4. There is also a mounting point below the display for the Official Raspberry Pi camera. The camera hole can be completely hidden with the included...

The SmartiPi Touch Pro is a case for the Official Raspberry Pi display and Raspberry Pi 2,3, and 4. There is also a mounting point below the display for the Official Raspberry Pi camera. The camera hole can be completely hidden with the included...

The SmartiPi Touch Pro is a case for the Official Raspberry Pi display and Raspberry Pi 2,3, and 4. There is also a mounting point below the display for the Official Raspberry Pi camera. The camera hole can be completely hidden with the included...

The SmartiPi Touch Pro is a case for the Official Raspberry Pi display and Raspberry Pi 2,3, and 4. There is also a mounting point below the display for the Official Raspberry Pi camera. The camera hole can be completely hidden with the included...

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Raspberry Pi 4 Touchscreen 7″ Case – Black. This is the OneNiceDesign Touch Screen Case for the Official Raspberry Pi 7" touchscreen display and the Raspberry Pi 4.

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The back for the cover for SmartiPi Touch 2 allows you to cover HAT boards or other additional electronics on the back of the SmartiPi Touch 2 . The covers include four M4 mounting screws that attach the cover to the 75mm VESA mount holes on...