CDrome

hello, this first post , i'm new (practical) world of electronics. i have basic understanding of electronics like, p=vi, calculating parallel , series resistance, etc... but have never put understanding practice. i start simple circuits on bread board. can use arduino power supply breadboard? i figure, why deal batteries or buy/build power supply , later buy arduino, if can buy arduino right off bat. i'm trying decide if (when i'm ready), raspberry pi better option arduino. guess same question raspberry pi. can used purely power supply breadboard. if helps, start simple analog circuits, maybe rlc filters, led circuit, etc... tia. you can use output arduino 5v pin provide limited amount of power breadboard - 200 - 300 ma. if need more power need separate power supply. ground separate power supply , arduino ground should connected. the digital i/o pins on arduino can supply max of 40ma , 20ma more realistic. , think max digital pins must less ...

hi, i'm trying use kompozer make website, darn thing keeps closing on me. no error message,no warning, kompozer disappears. i'm using ubuntu 9.04 , latest version of kompozer software channel on ibm thinkpad x40 laptop. many in advance. kree hi, have problem. have noticed programme closes when click tabs 'file', 'insert', etc our mouse. please note programme not close if navigate tabs using arrow keys. eg open file alt f. have found out in kompozer website. upgrade kompozer latest alpha release. regards dr kurian please visit website www.homoeofrontier.info have designed using kompozer. please give constructive criticism website. Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Multimedia Software [ubuntu] Kompozer crashing Ubuntu

hey, i've been meaning flash while , since have project in it. i know need learn basics (been working on it) wanted know start app following: outer circle 12 spaced points on it. inner shape (triangle/square, etc...) can rotate 1 circle point @ time (i.e. triangle connect 3 equidistant points , can rotate forward or backward or drag whole shape new point). what need kind of functionality? it's beyond scope of button i'm guessing. anybody? need clarification start. More discussions in Adobe Animate CC - General adobe

this scenario: .- loaded u 9.04. .- box connected 40" screen. .- ubuntu reports 47" screen 1 attached box , displays accordingly (aweful) what/how can change this? x11's configuration file empty!! ubuntu reading 47" number from? in advance. mine doing same thing, have toshiba 37" model number 37hl57 on hdmi... being reported in display preferences "toshiba, inc. 47" can changed in xorg.conf? i'm running old radeon 9200, if makes difference. Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Hardware [ubuntu] Screen size misreporting Ubuntu

hi guys, i not find exact answer, maybe has been asked (many times) before, possible swap 5v voltage regulator on mega2560 for, example, 78s05 2 amps? i have project including gsm/gprs module , lcd display, draw power, because when lcd powered on , gsm module tries connect cell network, meda reboots along gsm module. removing gsm module or lcd works great, want them work together  you can swap - need swap reverse polarity diode rated 1a. might easier 5v,2a wallwart , connect 5v header pin, diode 5v (anode) vin (cathode)  avoid reverse driving on board regulator. http://www.dipmicro.com/store/dca-0520 or bring in 5v barrel jack , jumper across diode , 5v regulator? Arduino Forum > Using Arduino > General Electronics > Swapping voltage regulator on a Arduino mega2560 arduino

hi need post command pi 2 lan pc depending on state of 2 gpio pins. ignoring gpio states, if fire off command using curl pi, @ time, works great. payload of 500 sets on, payload of 100 set off, no issues ever curl sure fundamentals work. running python script using gpio states via cron -e @ boot watch gpio states works fine maybe few hours, days. fails. damn it! btw, gpio connected go high if momentary switch connects them 3.3v, works fine initially. total noob python, looking pointers how proceed, log errors (?) maybe or add sort of watchdog? missing obvious aspect code prevent failing? ideas code: select all #!/usr/bin/env python # gpio 23 & 24 set inputs. both pulled down. # 23 , 24 go 3v3 (3.3v) when momentary button pushed. # 23 post on # 24 post off import time import rpi.gpio gpio gpio.setmode(gpio.bcm) import requests # handle button event def my_callback(channel): time.sleep(0.5) if gpio.input(23): payload = {'relay': '500'} ...

i need run script <<"before">> else, before gnome shutdown. i've read countless thread use the: /etc/rc0.d scripts or /etc/gdm/postsession/default point on ~/.bash_logout problem start command close , execute lot stuff, before starting script... what want: click on "shutdown"(top right menu) > boom! script start(before or after shutdown countdown) it's not important; must not start else after. what need: if can point me out where's script customize shutdown "function" or customize menu or how bypass function. time. fryser what script? why important before else? doing way can corrupt system. Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Desktop Environments [ubuntu] Shutdown Script Ubuntu