|Screen Size||3.5 inches|
|Screen Resolution||480 x 320|
|Max Screen Resolution||960 x 640|
Tontec 3.5 Inches Touch Screen for Raspberry Pi Display TFT Monitor 480x320 LCD Touchscreen Kit with Transparent Case for Raspberry Pi 2 Model B and Raspberry Pi B+
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- Display Size: 3.5 inch,for Raspberry Pi 2 model B and Raspberry Pi B+
- Resolution: 480*320, 65K color, 16 bit
- Interface: SIP16, 8-pin 2.54mm single row
- Transmits data through SPI (clock maximum speed: 128 Mhz)
- Package Contents: 1*Tontec Touchscreen Display, 1*Tontec case for Raspberry Pi 2 and Pi B+
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Tontec 3.5 inch touch screen module is designed especially for Raspberry Pi 2 and Raspberry Pi B+. It transmits data though GPIO, SPI (Serial Peripheral Interface) on the P1 interface at maximum speed 128MHz. The CPLD on the display module controls display content according to the data transmitted from the SPI interface.
Notice: Raspberry Pi unit NOT included!
Notice 2: This touchscreen only support Raspbian but not Win 10
Easy to set up
Physical Resolution: 480x320 pixels, 16bit, 65K color
3.5 inch resistive touch screen
LCD Display transmits data through SPI (clock maximum speed: 128 MHz)
Touch panel transmits data through SPI (clock maximum speed: 16 Mhz)
No external power supply needed
Built-in EEPROM storage unit
Open source Linux driver
Tontec display module is built with a high speed CPLD chip (EPM3032), a SPI interfaced 4-wire resistive touch screen control chip (XPT2046), and an I2C interfaced EEPROM memory storage unit (AT24C02).
1*Tontec 3.5 inch Touch Screen
1*Tontec Case for Raspberry Pi 2 Model B and Raspberry Pi B+
User Guide: https://s3.amazonaws.com/ttbox/35screen.zip
Here is a video of case installation,please don't press or pull the piece too hard.
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It will help to get brushed up on your linux changing directories and listing files. Here are the directions if anybody looses their directions paper:
1. Initial Config of New Raspberry Pi Install
sudo apt-get update
sudo apt-get upgrade
2. Update Firmware
//We now need to update the dbt file to the newest version to support Tontec Screen
sudo rm mz61581-overlay.dtb
sudo wget http://www.itontec.com/mz61581-overlay.dtb
3. Enable SPI and set overlay for Tontec MZ61581 Screen
//Open boot config
sudo nano /boot/config.txt
//Add these lines to the botton of the config.txt file
//un comment #disable_overscan=1
//this makes it so the desktop will be visible when started
//save and quit
4. Set Tontec 3.5 as the default output display from HDMI to Tontec Screen
sudo nano /urs/share/X11/xorg.conf.d/99-fbturbo.com
//in this file, change "fbdev" "/dev/fb0" to "fbdev" "/dev/fb1"
//save and quit file
//make the screen work on startup
sudo nano /boot/cmdline.txt
//Add fbbcon=map:10 at the end of the file. (no need to start a new line)
//save and quit file
For starters, the case is simply chic geek. With easy to peel-off, scratch-resistant coverings that protect the case, it is shipped compactly and securely. Once removed, the pieces fit together like a simple puzzle. All the ports are clearly marked and the parts are thick, but not cumbersome.
Innovation is apparent in how the case fits together. Most cases like this require you to have either a very gentle touch, to avoid breakage, or an insane amount of strength to get the ends “clipped” into the walls. The ends of the Tontec case are held together by compression clips cut into the walls, so that they fit firmly but do not have to be forced. And this is a good thing, because once you start building the case, you will most likely realize that you forgot the lid.
This happens because we are so used to the copy-cat cases that have you build the entire case, then put the lid on at the end. They probably do this because it takes less engineering to incorporate the lid into the case, and those lids seem to be added almost as an after-thought. The Tontec case intelligently incorporates the lid into the design. Held in place by to small holes at one end, the lid can be opened, allowing access to the GPIO pins, but it remains attached to the case, so you won’t be searching under the piles of wires and PCBs to find it when you want to close the case back up.
Another area where innovation is apparent is in how the Raspberry Pi is secured to the base. The designers at Tontec decided to use a rarely seen method of multi-part risers that make the Pi appear to be floating weightlessly inside the acrylic case. As with most cases, these are made from plastic, but they are well made, none of the bolts or risers were bent or warped, and none of the threads were uncut, both of which I have experienced with other cases.
In addition, there are optional break-away cuts on the case, which allow you to feed a full-sized ribbon cable through the side, or a smaller one through the lid. Being a prototype builder at Hackathons, I can really appreciate these. On many occasions, I have found myself pinching wires, or taping down lids at the last minute, trying desperately to keep the prototype together long enough to make it through the demos. These slots eliminate the need for me to do those things ever again.
The only problem I found with the case is on the end where the ribbon cable passes through. The compression clip on that side actually lacks the clip that protrudes through the end, making that end less secure that the other three if the ribbon cable is being used. It appears to be a design decision, however, and not a flaw, as that allows the ribbon cable to be removed without having to take the entire case apart. Since I rarely use a ribbon cable when developing prototypes, I don’t think this will be an issue, but I would still like there to be a clip on that end regardless.
If you think this is all great innovations, you are in for another one, because, it gets even better with the Tontec 3.5” Touchscreen, as it replaces the lid, but functions exactly the same as the lid; opening to allow access to the GPIO pins. This means that you do not have to plug/unplug the touchscreen when you need to add another wire to a pin, or fix a wire that has fallen off because you tripped on your way to the stage for the demo.
And it is HUGE, I have used other touchscreens from respected manufacturers, and they are all about the same size, but not the Tontec one. It measures approximately 3/4th of an inch wider and ¼ of an inch taller than my Adafruit one and performs the same, if not better. The touch response it very accurate even without calibration, and the image is crisp, clear, and bright.
Installation is a breeze. There is a small plug that can only be connected one way (since it needs power, obviously it starts at PIN 1). So, if you have seen any of the forum posts where people are complaining about the difficulty of getting it to work, they are not talking about this version or they might need more experience with Raspbian. Following the instructions provided, I installed, configured, and began using this screen in about 3 minutes. Most of that time was waiting for the Raspberry Pi to reboot after editing configuration files. If you are a novice at Raspberry Pi or Raspian, I could see how one part of the instructions might throw you off course, but if you ignore the X11 step (since it is not needed due to modifications in the boot/config and cmdline files), you should have it working in about the same amount of time.
I am definitely looking forward to using this case and touchscreen in my next Hackathon.
Great support, the first one I had was clearly defective when I installed it so I reached out:
Glad your message came.
We will send a replacement for you today and it will be delivered on Tuesday, July 28, 2015
There is no need to return it back. If you meet any technicial problem, please don't hesitate to contact me for help.
Thank you so much for your time in advance.
Works great, exactly (almost) as intended, I will explain why its not exact in the cons, which really isn't a con of the screen. Whats there to say, it works as intended, please make sure to download the UPDATED instructions (there is a link to it at the top of the paper instructions that came with the screen).
The case is great, has standoffs, nice acrylic finish, easy to put together. The only thing that can be somewhat confusing is the orientation of the RPI screen plug. If you are looking at the Pi with the pins in bottom right corner (landscape if you will) the Pi logo is upside down above the pins, you must install the module lip up (as to not hang over the edge of the main board) and as far right as possible. Also note there are 14 pins that will be to the left (if you have the device oriented the same way I do)
This is not a con of the screen itself, more the RPI in general, Raspberry Pi, apparently does not use screen buffers or OpenGL, SO if you are planning on building a mini Emulation Station type machine, and using this screen for primary, you are out of luck. Look for something mini that utilizes the HDMI port. This is a Raspberry Pi limitation NOT a device limitation, FYI, that is why I am not dropping a star, also, yes I am giving a 5 Star rating even when the first one I received was faulty (was shorting out, I actually think it might have been the cheap, fragile ribbon that it uses to connect the module with the screen) because of the great support I received. Just be VERY careful with that thin ribbon.
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