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Tontec 3.5 Inches Touch Screen for Raspberry Pi Display Monitor 480x320 LCD Touchscreen Kit with Transparent Case for Raspberry Pi 2 Model B and Raspberry Pi B+
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- Screen size: With 3.5 Inch Resistive touch screen, for Raspberry Pi 2B or B+
- Resolution: 480 * 320, 65K colors, 16-bit SIP 16.8-pin 2.54mm
- Transmits data via SPI (clock maximum speed: 128 MHz)
- No additional charging: A Very good access to the GPIO ports.
- With a transparent Case(acrylic material). The Case is neatly cut by laser, all the pieces fit together perfectly.
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|Shipping||—||FREE UK Delivery on orders dispatched by Amazon over £20||FREE UK Delivery on orders dispatched by Amazon over £20||FREE Shipping||FREE Shipping|
|Sold By||—||GYE UK||Jun_Electronic||Budpaw EU||The Pi Hut|
|Colour||For Raspberry Pi 2 Model B and Raspberry Pi B+||—||3.5 inches||—||Green|
|Item Dimensions||8.4 x 5.5 x 0.6 cm||8.61 x 5.59 x 2.01 cm||—||12 x 7 x 0.9 cm||9 x 6 x 2 cm|
|Item Weight||52 grams||50 grams||—||113 grams||—|
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Find answers in product info, Q&As, reviews
Tontec 3.5 inch touch screen module MZ61581 is designed especially for Raspberry Pi 2 and Raspberry Pi B+. It transmits data though GPIO, SPI (Serial Peripheral Interface) on the P1 interface. The CPLD on the display module controls display content according to the data transmitted from the SPI interface.
Raspberry Pi unit NOT included!
Drivers work with raspbian only!
Easy to set up and use
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 and Pi B+
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But first, know what you're getting into as this is an advanced kit. This is not a replacement for the bcm display that goes out to the hdmi and av. Instead, this is a GPIO project, if you don't know what that means, then this product might be out of your depth unfortunately.
The very nature of the rpi is exploration, and this kit appeals to this nature. It is a blast to play with and experiment on, and it might grind into you a few things you didn't know about the hardware on the rpi.
Here's some setup info and caveats.
Download the boilerplate code listed on the product page. At the time of writing this review, the same code was not located on the download section direct from the tontec website (that stumped me at first)
FOLLOW THE DIRECTIONS IN THE USER MANUAL
and set raspbian to auto-boot into x-windows. this isn't mentioned anywhere, but it's important that you do this because the device that x draws to is in turn going to draw to the GPIO.
also go to the advanced options and turn on SPI and I2C
Go to where you unzipped the code you downloaded from the store page and run
and for the final step copy and make executable the lcd file just built and make it start on reboot:
sudo cp lcd /etc/init.d
sudo chmod 755 /etc/init.d/lcd
sudo update-rc.d lcd defaults
So. a few notes. this is writing the x display to the GPIO. so the things that bypass x and draw directly to the bcm will not work. like omxplayer for example. or the GLES examples and such..
Found this blog to be helpful
Very fiddly to build, the parts are so tiny. Not sure why they created it in sections when it would be much better in an almost solid chunk. Plastic screws instead of metal. The screen is good, but the case itself is flimsy. I had to put electrical tape all over mine to keep it held together properly, and the screen is exposed too much. Wouldn't be able to carry this in a bag, as the screen would get damaged. Would prefer a solid case with a bit of plastic over the screen to protect it.
*edit* Amended to 3 stars, as getting no reply from the customer services email provided with the screen.
The screen is acceptable for displaying things. Touchwise it's capacitive (use a stylus otherwise you can't use it properly) so not state of the art. Calibration is annoying if you really want to do it, had to repeat it a few times.
To use it you have to script some things to switch from hdmi to it. You can't use hdmi afterwards, it just boots then switches displays.
Make yourself a script to be able to switch the screens easily from a ssh con if screen will break at a point later in time(remember your fixed ip first :) )
Will purchase an hdmi screen too as I need the GPIOs for i/o sensors.
Yes, you have to do a small amount of hacking to get the screen recognised, so you'll have to have your RasPi connected to another screen to do that, but the instructions are easy to follow and pretty straightforward.
The screen itself is much clearer than I expected.
The case is a little loose fitting so I am Googling to see a good way of making it more robust. Otherwise, I am pleased with the Tontec product - it is just the Amazon packaging, description and price which was disappointing.
Tontec® 3.5 Inches Touch Screen for Raspberry Pi Display Monitor 480x320 LCD Touchscreen Kit with Transparent Case for Raspberry Pi 2 and Raspberry Pi B+