Timeline for What is the simplest way to make a small low power and low price circuit that flashes LED's
Current License: CC BY-SA 2.5
8 events
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| Apr 13, 2017 at 12:32 | history | edited | CommunityBot |
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| Nov 18, 2010 at 21:16 | comment | added | Nick T | The Atmel ATtiny43U has an integrated charge pump that runs down to 0.7 V and provides up to 30 mA (@ 1.0 V, 10 mA @ 0.7 V). Alas, it is SMD only, but such is the price of high integration. | |
| Nov 12, 2010 at 22:15 | comment | added | Linker3000 | Using a microcontroller for a simple LED sequencer seems like overkill. The most complex I'd go for would be a 555 timer driving a binary counter used to run through some of the address lines of a PROM/EPROM programmed with the required bit/LED patterns. By using switches on the higher address lines and putting the required patterns at the relevant locations in the (E)PROM you could even switch between patterns. | |
| Nov 12, 2010 at 0:55 | comment | added | Toby Jaffey | 4 x AA would be fine, but I'd go with 2 x 1.5v coin cells or a CR2 for 3v | |
| Nov 12, 2010 at 0:44 | comment | added | pete3 | What would you suggest using to power this? I want it to be a low profile and small as possible? Think 4 double A's would work good? | |
| Nov 12, 2010 at 0:17 | comment | added | Toby Jaffey | I'd go for the MSP430G2211. Here's a couple of my projects which might be relevant: blog.hodgepig.org/2010/09/12/577 blog.hodgepig.org/2010/09/30/jam-jar-lamp | |
| Nov 12, 2010 at 0:09 | comment | added | pete3 | Find any through hole MCUs like those, that's what I need. | |
| Nov 12, 2010 at 0:00 | history | answered | Toby Jaffey | CC BY-SA 2.5 |