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This more advanced sonic has improved sound! The previous sonic screwdriver had several disadvantages: The LED was weak, charging the 3.6v supercap took some finesse and various resistors, and the sound was provided by just a buzzer. Also, I kinda started charging it and forgot about it and the 9v battery busted my supercap. So, after breaking my original screwdriver, I started on making a better one. I took some suggestions from the comment field, and I have a 556 IC in Atari punk console circuit (Thanks to S. Cameron, I wasted a whole afternoon playing with that thing), a few new supercaps in series to make 5v, and a mini-USB port for charging (kudos to Drabinowitz).
I drew up a little schematic, and with some jiggery-pokery and a thin speaker in place of a buzzer it just fits. I also found some super-bright LEDs, and a red magic marker. Red is much cooler. Anyways, on with the building!
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I drew up a little schematic, and with some jiggery-pokery and a thin speaker in place of a buzzer it just fits. I also found some super-bright LEDs, and a red magic marker. Red is much cooler. Anyways, on with the building!
If you like this Instructable, vote for it in the area above!
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There are a few disadvantages to the new design: The sound is a bit weak, and the bright LED only allows for around 5 minutes of continuous soniking with each charge. Also, be warned that supercaps are known to not hold a charge well, so don't expect it to work after leaving it lying around.
That said, you will need:
As before,
a magic marker,
cheap pen,
Tirefly,
Push switch,
and a mini-usb port (mine broke so I went with the audio jack and rigged a custom charger).
The new stuff!
A pair of supercaps! these will be in series for a nice 5v, which is also what USB provides.
556 IC! Basically, it's a pair of conjoined 555's.
LED's! I found some cheap ones at that link.
An earbud speaker, or similar small noisy device.
Some capacitors and resistors; capacitors are 10, 0.1, and 0.01 uf. resistors will vary.
Tools
scissors, craft knife, pliers,superglue, a drill, and soldering stuff.
That said, you will need:
As before,
a magic marker,
cheap pen,
Tirefly,
Push switch,
and a mini-usb port (mine broke so I went with the audio jack and rigged a custom charger).
The new stuff!
A pair of supercaps! these will be in series for a nice 5v, which is also what USB provides.
556 IC! Basically, it's a pair of conjoined 555's.
LED's! I found some cheap ones at that link.
An earbud speaker, or similar small noisy device.
Some capacitors and resistors; capacitors are 10, 0.1, and 0.01 uf. resistors will vary.
Tools
scissors, craft knife, pliers,superglue, a drill, and soldering stuff.
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So, Concluding from that ramble, I would like to buy The solder thing attached with the switch and jack.
P.S: Add a tut on how to make a custom charger too please.
Thanks!
Yours, JellyyFishh~!