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AJB2K3
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Posts posted by AJB2K3
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???hi
maplin dont have anything to the sort.
oh yes "vellenman" meaning??????????????
thanx so far there
What running ligt?
Knight rider type scanner?
Maplins = VX96E
Velleman = PMK107'1 -
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there micro controllers.<SEARCH> is your friend and so is <google>
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How I think it works. Use three color sensistve light receivers. The intensity modulates with the three oscillators connected to the three light receivers. You can combine the three signals on one line. Then the waveform produced carries all three basic colors and their intensity.
i think the link i posted is simpler
because the CPU will have 3 variable.
the sensor has a red/blue/green led
and a red/blue/green variable
but one reciver.
when the blue led is lit, the ldr's reeding is added to Var blue,
when the Green led is lit, the ldr's reeding is added to Var green,
when the Red led is lit, the ldr's reeding is added to Var Red.
the the cpu just checks a look up table, if the values fall into a certain table you got you color. -
Itsdone with computers and PWM.
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A simple to build one was made or lego mindstorms. goggle for lego color sensor
it uses 4 led (transmitters) and one reciver.
the leds are Red Green Blue and are mounted around the detector.
each led is pulsed in sequence and the programming works out which is the corect color for the value.
http://www.philohome.com/sensors/colorsensor.htm -
in theory 50 ohm isn't needed anymore because its for computer networks that use the coax cable system. and most moderen networks use cat 5 or 6 (rj45?)
I say these connections are better for tvs then "phono" connections. -
Whats the green voltage?
all i know is when testing psu or using as a test unit green has to be grounded. -
OK so -
if its got 2 connecters seperate on one edge its probubly 100Vac.
All refs i find conform to this no matter how many pins in the main strip. The one in that doc has 2 additional grounded pins.
I have a 15 pin 4X20lcd that knowone has pinouts for so i assume the 15th pin is the second enable pin for the lower have of the display.
I still dont know waht pins are what except for pin 1 which is alwas got the thickest track and is ground.
oh and i shoved 12v up a 5vpower line and anothe display stillworks. Now i know its 5v not 12 (ill be bugged if i know where 12 came from) the contrast now works. -
this method was used in college
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if its a 16pin lcd its uses 5v, if its 14 +2 contacts on far edge its 100vac
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It looks like everyone forgot to ask one simple question.
The the motor unit have relay contacts? -
Sorry if this looks like spam but i thought you might like to know.
50W varable temp soldering irons are 9.99 each at Maplins, T picked one up and have already retired my other irons. -
if its so complicated how do u get a ps2 to usb without electronics then!!!
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Thats the job of a programmer, hardware wise its easy.
but yes he would have to deal with how the computer sets up the ports and deals with the data. -
ps2/rs232 and usb are all serial devices. so intheory ps2>rs232 is easy.
Ps2= Port serial V2
RS232=Remote Serial 232
USB= Universal Serial Bus.
Names are closest but the only difference is the speed of the communication lines -
Heres a tip that will spedd in up in no time.
remove network software and dissconnect perminatly from the internert
remove ALL virus guards and fire walls.
remove everything that boots at startup.
here a quick list of thing to remove
Zonealarm,
Norton Av (all versions)
Winamp,
WMP,
Windows messenger,
MS office,
ms works,
java webstart,
xp fire wall,
Nokia phone manager,
and anything else that boots a startup -
I finialy have the pinout for the connection.
looking at the plug it a standered Sony camcorder lead(4 pole 3.5 mm jack)
from the plug body
band1 Audio L (yellow)
band2 Gnd
band3 Video (white)
band4 Aduio R (red) -
when i was in college we used electronic workbench.
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on average AA's are 1.2 V
so 6 = 7.2V.
to get 9V uses 6 high quality AA's or8 standered(use a meter to check voltages) -
I hate to say it but use www.google.com there hundreds of them, one even using a lego RCX.
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there are (building wise ) two different types of dectecto, powered and un powered but both work the same.
A basic intruder alarm has
12V supply +bat backup
12v op for powered devices,
NC tamper loop
NC detector loop.
Alarm output.
***************A diagram will be up by monday 27th**************
Zone1 = triditionaly entry/exit = when dector is open a timer starts if the detector circuit is not closed the alarm triggers.
Tamper= all device have tamper conectors if a case is open or cable cut alarm sounds.
Zone2-n NC circuits= id dector circuits open, alarm rings.
If the circuit is wanted i will put a rush order on the design. -
u dont get it.
before i run my cars i want a gloryfied multi freq reciverto see which channels are in use. -
I know about the official rules and me and my m8s have made sure we got difff crystals but if im using a car park and some one close i want to know what freq hes running.
Alot of the locals dont use id cus they think its gay, but i just get very annoyed with them.
drag lights (christmas tree) pc board design
in Electronic Projects Design/Ideas
Posted
the top one is maplins code and the bottom one is vallamans code.
i did have an addrees for vallaman but have lost all packaging with it on (pain because building instructions on printed on it).