61198Re: beam snooze
- Aug 17, 2013Thanks a lot for posting this circuit Wilf. I made a little toggle pummer for a gift and I must say I was very happy with the results. I used an ultraviolet LED and a vaseline (uranium) marble to make a fluorescent pummer. I added a 10k in series from pin 16 to 6 though, instead of a direct connection, otherwise It wouldn't toggle.
Here are some photos:
I do have one question though, I added a pot replacing the resistor from pin 18 to the enable in hopes of altering the dark turn on point. It comes on when it is fairly light outside yet. I tried a few other things too like a 100k resistor across the solar cell etc., but to no avail. Is there another way of altering the turn on light level?
--- In firstname.lastname@example.org, "Wilf Rigter" <wrigter@...> wrote:
> Hi Tom,
> The attached is an adaptation of the SB pummer. A white LED can be now used as the new design has a voltage tripler circuit.
> The top section has be converted to a toggling latch. It is tristated while charging. The pummer section is not tristated but is turned off through R5/R7 while charging. The dark SE triggers when it is quite dark. Once triggered, positive feedback through pin 18 turns the latch section rapidly fully on. Similarly the Pummer is turned off rapidly in the morning,
> The pushbutton has an alternate push on/ push off action so the pummer can be turned off or turned back on again.
> If a red LED or green LED is used change D2/D3 to 1N4148 SI diodes. A high capacity NiMHD battery should last longer.
> have fun
> ----- Original Message -----
> From: Tom Walker
> To: BEAM
> Sent: Friday, April 22, 2005 2:08 AM
> Subject: [beam] beam snooze
> hey group,
> My pummer si in my bedroom and i was wondering if there is a circuit
> that you can hit a button on, and it makes the pummer's light stay off
> (either kill the circuit or turn off the led) but then, when the light
> comes back in the morning, it comes back to life to charge and go
> again the next night.
> otherwise i tend to turn it off at night and forget to turn it on
> again the next morning
> Hope you can help,
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