Is there such a toy?
-- @~@ You have the right to remain silence. / v \ Simplicity is Beauty! May the Force and farces be with you! /( _ )\ (Fedora 15 i686) Linux 3.0.4 ^ ^ 13:36:02 up 11 days 17:42 0 users load average: 0.01 0.02 0.05 ???! ???! ???! ???! ???! ???! ????? (CSSA):
Yes if you use a 1.5V blocking oscillator.
I want one that has the (over?) driver built into the LED... :)
-- @~@ You have the right to remain silence. / v \ Simplicity is Beauty! May the Force and farces be with you! /( _ )\ (Fedora 15 i686) Linux 3.0.4 ^ ^ 13:36:02 up 11 days 17:42 0 users load average: 0.01 0.02 0.05 ???! ???! ???! ???! ???! ???! ????? (CSSA):
Some time ago Elektor did a front cover freebie; a tiny PCB with a dedicated LED drive chip and inductor for voltages down to 0.9V - that's probably as small as it gets.
Can't remember details but if you google Elektor and click contact from their home page, you can ask the editor.
You could use this simple circuit to work down to
Presumably this part?
Best regards, Spehro Pefhany
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