Raspberry Pi Forums

leejohnson

hello i have a 12v dc in a car to trigger a gpio whenever your open the door for example i would of thought i would of had to drop the 12v to alot smaller would 3.3v be low enough for example this http://www.ebay.co.uk/itm/12V-To-3-3V-3A-10W-DC-DC-Buck-Converter-Step-Down-Car-Power-Supply-New-Module...

leejohnson

excellent ill give that a read sorry im very good building actual buildings but building such a small thing i just dont know how you guys have the patients lol.

i would prefer to use python as thats what the rest of the code will be.

leejohnson

yes for example click on and off,

my mate with an arduino board made his relays click on and off in patterns like one per second type thing.

thats all i want to do at this stage.

then after that build in code, when file.png is touched on touch screen turn relays on. does this make sense ?

leejohnson

yes but the problem i have is write and testing i havent got a clue???

wiring not a problem, telling it what to do is another problem

leejohnson

sorry im only using the three 3,5,7 i got one of these http://www.ebay.co.uk/itm/DC-5V-4-Channel-Relay-Module-Board-Shield-for-Arduino-ARM-PIC-AVR-DSP-Electronic-/351003594516?pt=UK_BOI_Electrical_Components_Supplies_ET&hash=item51b971cf14 sorry but the page you pasted i dont understand , will have ...

leejohnson

hello im still very new to this. i have got a raspberry pi A and a 4 channel relay. all i want to do is test and hear the clicks on the relays, i have wired them in to different gpio pins (gpio 3,5,7,11) and the 5v and grd. do i need to download any software to make these things work. anyone go a si...

leejohnson

thank you i will have to install pygame and have a play

leejohnson

hello

im quite confident in using inkscape to create buttons. but has one able to use this to create a GUI to select buttons using the touch screen for the raspberry pi.

getting it to trigger gpio pins too

apoligises im still new to this.

leejohnson

told you i was simple, THANK YOU DIRK, you have made someone very happy for the weekend!!!!!

leejohnson

sorry how do i get to the config screen?

i am very new to this sort of thing but learning alot!! thank you for your reply

leejohnson

i think im losing the will to live :shock: trying to get this USB touchscreen ROBOPEAK screen for the raspberry pi i have the touch screen, a 16GB SD card completely clean and raspberry pi. http://learn.linksprite.com/raspberry-pi/how-to-use-2-8%E2%80%B3-usb-touch-screen-for-raspberry-pi/ I followed...

leejohnson

sorry i am quite new to this what do you mean by

See pp_screendriver.py in [pipresents-next] in the sig.

also another got any other programs that to use, i was thinking of designing the buttons on a laptop then somehow transferring it on to the pi, could that be done?

leejohnson

hey guys, i have programmed my usb robopeak 2.8" touchscreen into my raspberry pi :) yeah!! noobie lol i now what to create four buttons to trigger different gpio pins what is the best way of doing this? ideally i want a pincode input first (screen 1) then the four button options (screen 2). so bit ...

leejohnson

hello guys,

i want to plug in a USB webcam and 2,8 tft touch screen into 2 USB slots. both fit and work but i want the them to turn on and off via a gpio trigger. is this possible? if so how do i code it

like a pir sensor, if triggered to gpio, it will turn webcam on

thanks in advance

leejohnson

thanks for the reply,

i really do need to keep the files saved on the sd card on there,

so how do i "abandon NOOBS and just put Raspbian direct from the image" ???

leejohnson

hey guys,

when i bought the noobs sd card, it gave me the option to install i list of operating systems,

i installed rasprian and arch linux, after playing around i like raspbrian.

how do i unistall arch linux please.

i have user access and root access if that helps.

leejohnson

Hey Guys, Wonder if you could help me please First question - I want to use 2 SMDs or LEDs on the 3.3v gpio output pin can anyone recommend anything. ( i want to try and light up an area similar to interior light on a car) Second - i have a tft usb robopeak touchscreen and i can not find anywhere a ...

leejohnson

Hi guys, I have bought a touch screen 2.8" via a USB and its a cool bit of kit however im worried as its just a screen. Its free moving as its off the USB does anyone know of a case to house and protect mainly the back as the front is touch screen. ive only screen cases for the screen attached to pi...

Search found 43 matches

gpio input

Re: gpio and relay help please

Re: gpio and relay help please

Re: gpio and relay help please

Re: gpio and relay help please

gpio and relay help please

Re: inkscape on raspberry pi as GUI

inkscape on raspberry pi as GUI

Re: HELP!!!! please

Re: HELP!!!! please

HELP!!!! please

Re: touchscreen buttons

touchscreen buttons

USB on and off using raspberry pi

Re: raspbian and arch on pi

raspbian and arch on pi

LED/SMD and a tft case

2.8 TFT USB Touch screen