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So, I bought a "LCD Display, Kuman 3.5 Inch 480x320 TFT Touch Screen Monitor for Raspberry Pi" from Amazon. Now, I thought it was plug and go, but it's not. No biggy, I decided to figure out how to use it anyways. But, I can't find anything online about what I want to do, and I'm horrible with coding.

So, here is what I want. I was to run an Android operating system using this screen. So, how would I get the drivers and run them through the Android os? Is that even possible?

techraf
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Adam Brown
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1 Answers1

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[disclaimer] While not on Android OS, I'd like to share my experience on getting it running a minimal debian/raspbian based Linux distro - Minibian https://minibianpi.wordpress.com/download/.

This device seems to be the same as the one here http://www.waveshare.com/wiki/3.5inch_RPi_LCD_(A) so those instructions work too

H/W wise

  • Raspberry Pi 3 (the latest model out there as of this writing)
  • 5V/2.5A power supply (wall wart)
  • 4 GB class 4 micro SD (Sandisk)
  • HDMI cable and LED monitor required to verify the OS was written correctly on the card and install the required device drivers
  • USB keyboard / mouse
  • network / internet connection

setup

  • connect power supply, network

S/W wise

  • Ubuntu running on personal laptop - for creating the bootable card

steps:

  • Download the compressed image from the minibian web site and extract the .img from it
  • Inserted the microsd into an adapter and then into the laptop
  • It showed up as /dev/sdb on my machine which might be different on yours
  • I used the dd command (required super user privilege though) to write the image into the disk using the instructions here

www.raspberrypi.org/documentation/installation/installing-images/linux.md

  • moved the card from the laptop onto the Pi and powered up
  • this booted it up the OS with the boot log showing up on the LED monitor
  • during this time,assuming the module is correctly connected to the Pi, the display should be completely white. this is a good sign that the device is atleast getting the power
  • the next step was to get the drivers on to the new OS
  • download the driver archive using wget http://www.waveshare.com/w/upload/3/3d/LCD-show-160811.tar.gz on to the raspberry pi
  • extract the contents tar xvf LCD-show-160811.tar.gz
  • cd into the extracted folder and execute the driver installer cd ./LCD-show ./LCD35-show here 35 maps to 3.5" display
  • this should show some brief disk activity followed by a reboot
  • on reboot the boot log should show up on the TS/Display

TFT with boot screen I realize this doesnt answer your question on getting it running on android, I hope these steps are atleast useful to verify you have a working piece.

Shreyas Murali
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