Colin's refurbished Partition Tank

[colinsoon]

unique piece of hammer

haha how come unique?? cos bottom open top dun?? haha

[TntR2]

injuries time. my favourite sun stung by my plate. no idea how it reached the other side. must be shifted by my mum. haiz. heart painz...

dun worry dude.. it will recover in no time .. does not look that injured to me.. my octo stung 2 heads of my suns once... and they recovered in a few weeks..

just be sure to place them in a save spot can le...

good luck!

[colinsoon]

made this improved version of moonlight with 20LEDs and an adjustable voltage adaptor with 400mA output.

ran it for 20 hours already, no burn outs as yet.

funny thing is, when i set it at 3V and used a multimeter to test it, it reads 5V. when i set it to 1.5 V den the multimeter reads 3V. but the LEDs will all flicker...

[jervismun]

made this improved version of moonlight with 20LEDs and an adjustable voltage adaptor with 400mA output.

ran it for 20 hours already, no burn outs as yet.

funny thing is, when i set it at 3V and used a multimeter to test it, it reads 5V. when i set it to 1.5 V den the multimeter reads 3V. but the LEDs will all flicker...

Wah bro... you really DIY king leh!!! Amazing! Flicker nice lah... can simulate glimmering effect better

[colinsoon]

hmmmm no la. i where got king.. i admire chris more leh...

haha i inserted it into a plastic tube, with plastic end caps, so that it is totally waterproof.

1 lesson learnt from this, that is not to use copper boards already used. cos the solder just will not stick onto the copper, and the LEDs will screw up accordingly too. you will notice from the top foto that the middle 3 LEDs are dimmer then the others. and also quite loose. although i used hell of a lot of solder on it already.

think i am gonna make another nicer one...

[jacobus]

haha ... yes yes pro-ness .... inspire me to try this out too ....

[godzillaliu88]

made this improved version of moonlight with 20LEDs and an adjustable voltage adaptor with 400mA output.

ran it for 20 hours already, no burn outs as yet.

funny thing is, when i set it at 3V and used a multimeter to test it, it reads 5V. when i set it to 1.5 V den the multimeter reads 3V. but the LEDs will all flicker...

the reason is.

the LED the longer leg is '+' and the shorter leg is '-'

LED when connected correctly. there's something called the 'forward bais'.

each LED will add abt 0.3V to the total V.

if u connect the shorter leg to the '+' terminal. the it's a 'reverse bias'.

each LED will -0.3V from the total V.

so maybe u connect the LED wrongly lor. that's why will flicker.

[colinsoon]

thanx for all the information.

i am actually quite aware of that long leg short leg thingie. and all the LEDs are connected in the correct manner. unless there is manufacturing default.

the flickering only occurs when the voltage passed through each LED is lower then 1.5V. which should not really occur, when you study semiconductor fundamentals. but that is not the point.

with regards to forward bias and reverse bias, i would like to emphasize again unless there is manufacturing default of the most coincidental kind, there should not be a wrong placement.

oh just FYI, when you reverse bias connect the LEDs practically. it will not light up. or the light emitted is totally insignificant.

[godzillaliu88]

my info. that's all i can remember from last year. haha. studied diodes.

does LED need a certain V to work?

[jacobus]

WAHH ! EEE sure taught u alot ... haha ... i gonna run down to sim lim tml to get blue LEDs... anyways ... have you taught about implementing a LDR into circuit? i was thinking out tt ... tt way ... it will turn on automatically when the lights go out ... instead of having to turn it on or connect a timer ...

was desperately trying to find out how to use the LDR but i lost all my lecture notes.. haha ...

[godzillaliu88]

oh. circuit with sensor? can buy at sim lim tower. 1 packet. with all the nessecary components. need to self solder.

[colinsoon]

was actually thinking of that. but then, thinking bout it, the moonlights will be on for 16 hours, since the light period of my T5s are like 8 hours. so meaning, as long as the lights are not on the moonlight will be on. not very healthy for the LEDs. haha

[colinsoon]

how it looks like with the moonlights on.

[colinsoon]

macro attempt. din really turn out well.

[colinsoon]

new hammers. looks quite pretty actually. would be nicer if the heads were green. but looks lovely to me... hope it can extend longer. then it can sort of like hang down my arch...

[colinsoon]

newly spawning head... distorted tentacles.

[colinsoon]

this frogspawn doesnt really look like a frogspawn. looks wrong.

[colinsoon]

torch. hmmmz.

[colinsoon]

bubble from bro alexgo. somehow one part of the bubble died off. managed to recover the remaining part.

[colinsoon]

my baby orange yumas grew... !

[colinsoon]

cynarina when i first got from bro dorado...

[colinsoon]

now..

[colinsoon]

when i got it from bro alexgo...

honestly din think this piece willl survive...

[colinsoon]

now...

[colinsoon]

:)