new to picaxe and need to know if right for my uses

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apixdesign

New Member
i want to hook up a sequence of leds around some of my speakers and I want around 12 in a circle, The first one flashes, turns off then the second one go's, turns off, then the third etc... I want to know if and how it could be dont and what to buy if that isnt a problem. Thanks alot in advance
 
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eclectic

Moderator
One approach of many possible......

A 28pin project board

http://194.201.138.187/epages/Store.storefront/?ObjectPath=/Shops/Store.TechSupplies/Products/AXE020

12 Ultrabright LED

12 resistors

Fixing hardware

To “see” the project working, download the programming editor.

Run this program in the Simulator.
Code: 
#picaxe 28X1

symbol delay = w1
delay = 100 '0

main:
for b0 = 0 to 7

high b0
pause delay
low b0
pause delay
next

for b0 = 0 to 3
high portc b0
pause delay
low portc b0
pause delay
next


goto main
Change the delay values.
View the different effects.

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manuka

Senior Member
It's NOT my creation, but fellow Kiwi Andrew "BrightSpark". Prices elsewhere are much keener as well. NB- I have never heard of this Acronum crowd, & although they are apparently in NZ, physical details on their web page are distressingly elusive. Footnote: For those in larger countries, the jest that virtually everyone in 4 million population NZ knows each other is often not far from the truth!
 
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Mycroft2152

Senior Member
That was the best google could come up with for a search on "Kiwi Patch". What are the other optins?

The site does seem kind of thin.
 
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eclectic

Moderator
And don't forget the 28X1 CHIP!

There will be some wiring to do, so it's best if you return, when
you've got the board in front of you.

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apixdesign

New Member
Ok so i need to buy a 28X1 CHIP and A 28pin project board. Im new to this, is there a schematic to help me out, i know what to do with the resisters I just dont know how to wire the chip to the leds
 
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manuka

Senior Member
Suggest you tell us more about the effect you're trying to achieve. I've seen LEDs mounted clock face style placed as hours on an old CD in fact! Pun- rock around the clock etc

IMHO the 28X1 (which will of course need programming) is rather an overkill for just a dozen spinning LEDs - it's like taking your Mercedes down to the shops for a loaf of bread.
 
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Dippy

Moderator
For something simple/cheap I would have thought you could cascade a couple of shift registers e.g. a couple of HCT164s. Pulse the clk and bingo a sequencer.

Or if you used something like the CD4514/4515 4to16 Line decoder you could have your simple sequencer or even more complicated sequences as you can directly control the ouput LEDs from 4 bits (half a port for ease).

Or get the 28X1 just in case you get bored with the project and want to do soemthing more sophisticated later.
 
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eclectic

Moderator
P.P.P.P.P.P.

Apixdesign.

Using Stan's words from other threads,
“Where are you? Budget? Skills? Resources? Experience? “

1. What Power-supply will you use?

2. Illumination level; restrained or “Disco” ?
a. What type of LED's do you own? Any data available?

3. Would you prefer
a. A pre-assembled board.
b. A self-assembly Picaxe project board?
c. A self build board? (Vero or similar)

Dippy's HCT164 / 4514 c/w an 08 project board, would make an excellent
low-price “chaser”, but would require further board fabrication.

See, for example

http://www.rapidonline.com/Electronic-Components/Integrated-Circuits/Logic/74HC-Series-logic/79408

http://www.rapidonline.com/Electronic-Components/Integrated-Circuits/Logic/4000-series-CMOS-Logic-family/77018

http://www.rapidonline.com/Electronic-Components/Integrated-Circuits/PICAXE/PICAXE-08-Starter-kit/80318


Your money. Your choice.
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