Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

All Questions

Tagged with
0
votes
0answers
47 views

How do I find which pins my TFT display is using?

I have a TFT Touch Screen Display from Tontec that I'm using for a project. According to the product description the display only uses 8 pins. However, the connector cable takes up 26 pins worth of ...
0
votes
2answers
47 views

How to make a stand by button?

I am using an Raspberry Pi 3b and a 7 inch hdmi waveshare touchscreen that connects to rpi with a hdmi cable and a micro usb cable. I want to program a push button from GPIO pins to make the screen ...
1
vote
1answer
46 views

Can the GPIO pins be used to compromise a raspberry pi?

For example, would a touchscreen device that uses the below pins on a Raspberry Pi 3 be able to do something more than say, send touch and keyboard events? Anything hackish/nefarious? (edit: use case: ...
0
votes
1answer
186 views

Change GPIO pins for official Raspberry Pi 7" touchscreen

I need to use different GPIO pins with the Raspberry Pi official 7" touchscreen. I'm already using pins 3, 4, 5 and 6 with a hat, and it would be a pain to change them. I've looked through several ...
0
votes
0answers
48 views

Stuck at colorful boot screen AFTER installing software to run an LCD 3.5" GPIO screen on my pi3

the charger I am using is for an Amazon Alexa and it outputs 5.25V; there is enough power to power the pi, multiple peripherals, ethernet, HDMI, and the screen. BUT- when I install the software to ...
0
votes
2answers
269 views

7" Touch Screen Stops Sending Touch When 3v3 Pin is Plugged In

I'm using python 3.4 to control the GPIO pins and using a GUI interface I made to interact with everything. I'm using a 16 channel relay to control some solenoids with the code. When I plug the 3v3 ...
0
votes
0answers
308 views

waveshare 3.2" LCD touchscreen touch functionality stopped working

I'm using this touchscreen on a raspi zero w and I'm currently working on a python application. I was working with the python serial module since some time and everything was working fine, but since ...
1
vote
2answers
1k views

Low Power when 7" touchscreen display connected

I recently won a raspberry pi, and decided to buy the Elecrow 7" touch and the 9 layer case for my raspberry pi. The case works great, and the fan runs without problems off of the 5v+ground GPIO pins. ...
1
vote
0answers
143 views

Can I enable a HDMI auto detect to substitute a GPIO screen

Ok so I am running raspbian jessie pixel on a pi 3 b and I have installed adafruits 3.5' piTFT and it uses the GPIO pins and I would like to know if I can cause it to auto detect HDMI on boot and oly ...
0
votes
1answer
215 views

Connecting a servo to GPIO when using touch screen to GPIO socket

I bought a Raspberry pi 3, along with a touch screen that connects to the board, to all the GPIO pins. I wonder how can I use the GPIO port for additional functionality, e.g. connecting servo motors ...
4
votes
1answer
2k views

Raspberry Pi Camera Not Showing Preview Onto Touch Screen

I have a 2.8 inch touch screen that plugs into the GPIO pins on my Raspberry Pi 3. https://www.adafruit.com/product/1601. I have a raspberry pi camera that I attached to the pi. I am using the ...
1
vote
3answers
2k views

Use nc pins of 5 inch HDMI touchscreen

I recently bought 5 inch HDMI touchscreen (see link below) . It Places on top of the RPi gpio and consume a lot of them !! But unfortunatly 12 pins (like USART and I2C) are nc !! (see link below) ...
0
votes
1answer
309 views

setting up RPI TFT, GPIO and touchscreen questions

I'm thinking of buying a Raspberry Pi TFT such as this one. I would look into an official adafruit one, but I don't fancy paying £35 for a 2.8" screen... a few questions though.. Is it compatible ...
0
votes
1answer
822 views

How many of the GPIO pins PiTFT - 2.8" TFT 320 x 240 CapacitiveTouchscreen uses?

I am planning on using the PiTFT - 2.8" TFT 320 x 240 CapacitiveTouchscreen with my Raspberry PI 2 Model B with 40 GPIO pins and would like to know how many of the 26 GPIO pins it uses even though it ...
2
votes
3answers
3k views

New Touchscreen Project - GPIO or HDMI

Please excuse the noob question - first Pi project. Basic project components: Raspberry Pi 3 touchscreen (preferably 8 inches) with sound. I am uncertain in making the purchasing decision for the ...
2
votes
1answer
881 views

w1-gpio issue with Waveshare 5" LCD touchscreen and Pi 2

I've got huge trouble solving the following problem: I attached a Waveshare 5" LCD touchscreen to a Pi 2 Model B (components and setup listed below), prepared a new SDcard with Raspbian Jessie (not ...
1
vote
1answer
419 views

LCD-32 3.2 TFT no longer works after kernel update

I have an LCD-PI32 3.2 provided from hwlevel.com. This was working great with their kernel modules provided for 3, however after I recently upgraded my Rapsberry Pi to kernel 4 it is no longer ...
0
votes
1answer
401 views

Securely Mounting LCD Display to Pi

I have decided to add a 4D Systems 2.4" HAT display to my R-Pi2B, however before I start mashing down on it, I would like to ensure that it is securely fastened to the Pi. I have my Pi seated in a ...
2
votes
1answer
2k views

Kodi on a GPIO screen

I recently bought a 3.5 inch TFT touchscreen connected by GPIO to my raspberry. I finally managed to make it work with Raspbian. however, when I launch KODI, the image on the TFT freezes and KODI ...
1
vote
2answers
1k views

Raspberry Pi Touch LCD Screen problem when GPIO connected

I am using a Raspberry Pi 2 Model B. I have a 3.5 inch Touch Display LCD for Raspberry Pi. When I start the Raspberry Pi with the attached touch screen it shows only a white screen on the Display. ...
2
votes
1answer
4k views

Change GPIO pin for DS18B20+ One Wire Digital Temperature Sensor

First question on this SE site so please be gentle. Trying to get the above mentioned temp sensor working on the RPi but with a touch screen installed. When I run the following steps nothing ...
2
votes
2answers
779 views

GPIO pins NOT working when using touchscreen

I have bought this touch screen. It looks and works great. I wanted to play round making a simple Kivy app with buttons that turn on/off LEDs and relays. But it seems that when the screen is ...
2
votes
1answer
996 views

TFT Buttons on SainSmart 3.2" LCD

Has anyone gotten the buttons to work on the SainSmart 3.2" TFT screens for Raspberry Pi? I have some ideas to make them call commands or Python scripts, but don't have any documentation from ...
4
votes
1answer
555 views

Touchscreen Pi GPIO Connection

I'm working on David Hunt's Touchscreen Pi Timelapse Controller (https://learn.adafruit.com/touchscreen-pi-timelapse-controller/overview) and have encountered some difficulty in the the hardware ...
1
vote
2answers
1k views

may connect 26 pin touchscreen display to a 40 pin raspberry pi A+?

Recently, i've got as a present a raspberry pi a+ (40 GPIO pins) and touchscreen display for older version (26 GPIO pins) I tried to google, but wherever i search it gives me description of the new A+ ...
3
votes
1answer
4k views

Conect a phone screen to the RPi (GPIO)?

I've an old cellphone I don't use anymore (LG Secret (KF750)) and I was thinking about disassembling it in order to use its screen with the RasPi (probably with the GPIO pins ?). It sounds nice to me ...