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by pavul
Fri Feb 17, 2017 3:47 pm
Forum: Beginners
Topic: Generic lcd screen 3.5" 26 pins
Replies: 5
Views: 1733

Generic lcd screen 3.5" 26 pins

I bougth a generic lcd tft 3.5 screen for my rpi, it has a ribot to connect directly to rpi pins, it have 26 points so I can user just 9 GPIO from 14 pins that are free, but I was seeing another screen that have the same ribbon and they have only like 8 slots with the port are using I mean, one for ...
by pavul
Fri Feb 17, 2017 3:39 pm
Forum: Beginners
Topic: connect 26 pin lcd to raspberry pi
Replies: 5
Views: 1391

Re: connect 26 pin lcd to raspberry pi

if was inside dvd player then u have to look for that dvd and see what kind of screen it have, If is something like generic chinesse monitor then probably can accept the same drivers for saintsmart or waveshare. you could try downloading the images from these providers and after install to rpi, try ...
by pavul
Fri Feb 17, 2017 4:29 am
Forum: Troubleshooting
Topic: gradle dont download dependencies on RPI
Replies: 1
Views: 763

Re: gradle dont download dependencies on RPI

the example code of the dependecy for rpi on gradle was wrong , today was corrected : // https://mvnrepository.com/artifact/com.pi4j/pi4j-core compile group: 'com.pi4j', name: 'pi4j-core', version: '1.1' // -> was name: "pi4j-native" after build the program, reload the project and you can see the ja...
by pavul
Wed Feb 15, 2017 2:44 pm
Forum: Troubleshooting
Topic: gradle dont download dependencies on RPI
Replies: 1
Views: 763

gradle dont download dependencies on RPI

hello Im making a project in java but its a gradle project, I installed gradle and on the build file I tried to download PI4J, the first time I build the project some kind of forders are downloaded but not the .jars, does anybody knows if its possible, or a bug or some kind of guidance because I was...
by pavul
Thu Feb 09, 2017 3:48 am
Forum: Beginners
Topic: how to conncet rpi to tft lcd 1.8"
Replies: 0
Views: 272

how to conncet rpi to tft lcd 1.8"

i would like to know how can i connect a tft lcd 1.8" like the one in this video:

https://www.youtube.com/watch?v=boagCpb6DgY


i get the pin and connections but i dont know how to keep going with that, also i would like to know if is posible to conect it with java.

thanks in advance.
by pavul
Thu Feb 02, 2017 3:42 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: XPT2046 Touch Screen instructions for Raspbery Pi 3
Replies: 50
Views: 143127

Re: XPT2046 Touch Screen instructions for Raspbery Pi 3

somebody knows if this lcd screens works with RPI ZERO?
by pavul
Tue Jan 24, 2017 4:05 am
Forum: Java
Topic: jar class not found in raspberry
Replies: 1
Views: 883

jar class not found in raspberry

hello im creating GPIO examples with PI4J, im creating the .jar in mac and im passing the jar to raspberry, i downloaded the jar files of PI4J and i added to library folder, the problem is when i want to execute the jar in raspberry then i get an NOCLASSDEEFFOUNDERROR: com/pi4j/io/gpio/GpioFactory w...
by pavul
Wed Jan 18, 2017 7:09 pm
Forum: Java
Topic: Glassfish+Netbeans
Replies: 3
Views: 2215

Re: Glassfish+Netbeans

you can develop your web application in a PC/MAC and then once you finish it you can pass the .war file to the raspberry through FTP ( this option its simpler than SSH ), to be honest I think JAVA EE processes are to heavy for raspberry but you don't loose anything trying it.
by pavul
Wed Jan 18, 2017 6:26 pm
Forum: Gaming
Topic: Soldering a Controller?
Replies: 7
Views: 2161

Re: Soldering a Controller?

how to do that if we want to make the conections for the buttons to the pins?

any well explained example?

and how to connect to the pins if we are using a lcd screen attached to the pins?
by pavul
Wed Jan 18, 2017 6:22 pm
Forum: Gaming
Topic: Game development for the Pi
Replies: 9
Views: 6250

Re: Game development for the Pi

I want to develop a game console using the raspberry, I was making a game library for java, that I used in mac/windows, yesterday I pass a .jar to the raspberry and it worked, what I would like to make is that when you turn on the raspberry then ejecute some kind of java program to list all games ma...
by pavul
Wed Jan 18, 2017 4:49 pm
Forum: Java
Topic: libGDX on raspberryPi 3
Replies: 17
Views: 4658

Re: libGDX on raspberryPi 3

that must not be a problem,

you can develop your game and then pass the .jar file of your game to rasp berry, once inside rpi just execute your .jar with java -jar command. that should work, I have been making that without problem.
by pavul
Wed Jan 18, 2017 3:21 pm
Forum: Español
Topic: Ayuda con pantalla tft porfavor
Replies: 15
Views: 9321

Re: Ayuda con pantalla tft porfavor

he tenido el mismo problema la semana pasada con una tft LCD de 3.5" 480x320, por lo general los fabricantes no tienen documentacion, pero es casi seguro que viene siendo una copia de otras pantallas LCD de mas renombre, en mi caso la que compre fue una copia de una WAVESHARE. intente cambiar archiv...
by pavul
Wed Jan 18, 2017 3:14 pm
Forum: Español
Topic: RASPBERRY NO FUNCIONA SEÑAL DE VIDEO
Replies: 3
Views: 2830

Re: RASPBERRY NO FUNCIONA SEÑAL DE VIDEO

pues puedes checar el archive de configuracion, para saber si se esta ejecutando la configuracion de conexion al HDMI,

busca una instruccion hdmi_hotplug y descomenta esa linea, eso es para forzar que se realize la conexion con hdmi

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