I am using LEDs on PCBs as visual test points more and more as I'm sure most of you do. Wouldn't it be nice if an low cost (
Why don't they make this IC?
Sep 30, 2005
8 Replies
I think you can easily do most of that with Microchip's smallest uP driving an LED.
Thanks,
- Win
It wouldn't be very hard to program a PIC10F220 micro to do that (no cap required). SOT23-6 package. I believe it would meet your price point as well.
Best regards, Spehro Pefhany
"it\'s the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com
It's called an LMC555, one cap, and 3 resistors.
Cheers,
Phil Hobbs
I'm using LEDs as visual testpoints less and less. I'd rather use something else. Be that a single pin, where I clock bytes and words out serially, be that the UART, or the SPI.
Rene
Ing.Buero R.Tschaggelar - http://www.ibrtses.com
& commercial newsgroups - http://www.talkto.net
Wouldn't want to discourage you, but don't start clipping your coupons too early.
Cheers,
Phil Hobbs
How interesting Win and Sephro. I thought a MPU was for control and data crunching but now you say it is a simple LED VVM (Visual Volt Meter). I guess I fell in an analog hole and lost sight of Digital's vast capabilities. Thanks, Harry
3 Resistors + 1 cap + 1 SO-8 is a lot more space than a PIC.
Someone could go into business selling pre-programmed PICs for this job.
--
kensmith@rahul.net forging knowledge
On Sat, 01 Oct 2005 15:32:06 GMT, "Harry Dellamano" wroth:
The recent idea, that analog is dead and that digital is the only way to go, is popular. However, digital's reportedly vast capabilities are in reality only half-vast.
Jim
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