Instructables

Build a USB Digital Microscope in 60min and 15$

Featured
Picture of Build a USB Digital Microscope in 60min and 15$
DSCF3366.JPG
Image4.jpg
Image5.jpg
Image7.jpg

How to turn a 10$ microscope and a 5$ USB camera into a cool digital microscope in 60 minuets.

 
Remove these adsRemove these ads by Signing Up

Step 1: Disassmble any USB simple webcab

Picture of Disassmble any USB simple webcab

Just remove any screws and plastic cover that is not needed.
This webcam cost me 5$ - very simple low resolution web cam.

Step 2: Place hot-glue over the electronic side of the camera so it won't get damaged.

Place hot-glue over the electronic side of the camera so it won't get damaged.

Step 3: Remove the insolation from the cable & add a red and white wire.

Use a cutter or a small knife to remove the insulation (BE VERY CAREFUL - DO NOT CUT YOURSELF!)
Cut the red and black wires and reveal the copper wiring .
Connect two additional extensions for these cables (5V DC) and solder the red together and the blacks together (not red to black!)

Step 4: White LED connection

Picture of White LED connection

connect a 50 to 330 Ohm resistor to the red wire and the other side to the long LED line .
Then connect the black wire to the short LED lead.

Step 6: Connect the camera

Picture of Connect the camera
DSCF3368.JPG
DSCF3366.JPG
while you view the image via the SW used for the webcam - position it so you get a clear image . you may need to play with it for a while .
After you find the exact location use a hot glue gun to fix it to that position .
Then tape the wires tidily to the microscope and start taking pictures...

Step 7: Pictures of Pollen (150x 300x 600x)

Picture of Pictures of Pollen (150x  300x 600x)
Image5.jpg
Pictures of Pollen (150x 300x 600x)

Step 8: Pictures of Cotton(150x 300x 600x)

Picture of Pictures of Cotton(150x  300x 600x)
Image2.jpg
Image3.jpg
Pictures of Cotton(150x 300x 600x)

Step 9: Pictures of Grass(150x 300x 600x)

Picture of Pictures of Grass(150x  300x 600x)
Image8.jpg
Image9.jpg
Pictures of Grass(150x 300x 600x)


Step 10: I hope you like my instructable - If you do - please rate it

Picture of I hope you like my instructable - If you do - please rate it
===========================================
= Please Rate on the right of the page
===========================================

I love comments and feedback (good and bad)
1-40 of 76Next »
This is really neat but the title is a little deceiving, since the Microscope part of the USB Digital Microscope for only 15$ costs around $250. Otherwise, good job
moris_zen (author)  dogsrcool2me2 years ago
Trust me - this microscope is the cheapest type you can buy in a $ shop (it cost 10$) - If I where to use a 250$ one the pictures would be much much better!
give it a try.
moris_zen (author)  dogsrcool2me5 years ago
This microscope cost me 6$ (bad wraping) - new it is 10$ . look in the toy section in "toys R us" good luck :-)
bnurkholis2 years ago
How to change magnification?
The microscope pictured has a revolving "turret" that allows the user to dial a magnification. You can see a similar microscope with the parts labeled at this web site: http://www.microscope-microscope.org/basic/microscope-parts.htm
tolga3 years ago
very nice!
danbar3 years ago
muy bueno! felicidades Grats!
Malk0074 years ago
 Yo quiero hacer uno de esots, ¡Muy bueno!
moris_zen (author)  Malk0074 years ago
English pls .
Thanks
Translation: I want to make one of these. Very well done!!!
moris_zen (author)  psychlones4 years ago
Thanks - good luck . post pictures when you make it.
Ramon-DC4 years ago
yeap, this i a good instructable Congratz!!
kitfoxtrot4 years ago
In bold @ the top of step III it says "...add a red and white wire."

Should be red & black as I'm sure you know :p
marko294 years ago
 hey can you please give me materials how to build this microscope because i want to build two different kinds of microscopes?
how would you make it magnify in the thousands 1200x just wondering
On optical microscopes the maximum usable magnification is around 800X with out using oil immersion. If you use oil immersion it is possible to get a magnification around 1200X, but only under thebest conditions.
moris_zen (author)  william900495 years ago
I assume it should work .. just give it a try and play with the distances before you put the glue. see the image in real time and only then put the glue on.
ICBMer4 years ago
You can get better qaulity if you use a nicer digital camera (more detail with higher x) Plus using a stand allows for greater mobility and ensures you get the picture you want, check out my instructable) Sure it's more expensive, but it looks cooler. otherwise AWESOME INSTRUCTABLE (: (my I-able) http://www.instructables.com/id/How-to-take-crystal-clear-digital-snapshots-throug
mzclive4 years ago
lol Forget cutting myself, I've managed to solder myself once. =)
once I dropped my soldering iron.... then I caught it..... :P
(in case you didn't catch that, I mean I just caught it as a reflex and grabbed the business end.)
natman5 years ago
Great Instructable!!!! can't wait to build mine!!!
cheath5 years ago
Nice tutorial i just built mine.
ramuproject5 years ago
nice work, Do you know the magnification of the objective, eyepiece. Or you removed the eyepiece.
moris_zen (author)  ramuproject5 years ago
I didn't remove the eyepiece just glued it to it.
skizzilini5 years ago
Where did you get the camera (webcam) from, or what is its design?
moris_zen (author)  skizzilini5 years ago
The where stoked up in a pile in a computer store .. It was just the cheapest brand available .. some Chinese unknown brand...
what's the effect of putting an ohm resistor near the lead??
moris_zen (author)  fortunecookie5 years ago
If you dont - the LED will burn (it limits the current)
that's why my eyes feels itchy after i used my microscope with an led light. tnx
paulm6 years ago
very good job =)

one thing, its insulation, not isolation...
yeah but insulation does Isolate so I think that it could be called isolation.
... but that doesn't change the fact that the material around the wire is an insulator to electricity and used for that property. its confusing to call it isolation
Yeah I suppose that's true.
moris_zen (author)  wierd idiot5 years ago
Thanks for repairing me English (just joking)
Great job Dude!! I was looking into buying a USB Scope and the problem was the 20X to 200X limitation before they got to be too expensive, I will definately give this a try.
Sinster5 years ago
In step 3 when you cut the red and black wire. Do you connect the two halves back together along with the extension?
moris_zen (author)  Sinster5 years ago
yep
Kike5 years ago
very good, where did you buy the microscope?
moris_zen (author)  Kike5 years ago
Toys R us - discounted returned lot for ~6$
1-40 of 76Next »