handschmeichler 4.0

That is quite different from the average flashlight, a great custom build! :slight_smile: Out of curiosity a few questions:

-what are the drive currents for the leds?
-are those small lenses before each led? and if they are plastic, does that interfere with the output of the Nichia (365nm version?)
-I’d love a look at the inside!!
-(my pet-subject :wink: ) you state that the luxmeter is very accurate (accurate luxmeters are tricky to make), what sensor did you use, what is the Vlambda curve of the sensor and how does it deal with light that comes in from an angle (I see it has no diffusor)?

Looks awesome.

Hi,

- current for the white is 1050ma, red-700ma, uv-700ma.

- all glass lens

- i will make some pictures these days…

  • yes, you are right. it is important that you messure with the right angle

datasheet:
https://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjK-dWmwanMAhULESwKHeIsCbsQFggdMAA&url=https%3A%2F%2Fwww.adafruit.com%2Fdatasheets%2FTCS34725.pdf&usg=AFQjCNFLjJDXoCZYHj9I_0HbrjsSoxHYXg

the sensor can also messure rgb values, so there are some things more possible. first i´d like to include a rgb led, but i discarded that cause the space is really limited.
i did some messurements compared with my lx133 luxmeter, and the results where pretty good for this smal device. i don´t say this is accurate by <1%, but good for make some messurements when outside.

markus

400 Euros!!! :smiling_imp: Catch it if you can! BTW nice little thing.

Oh my goodness.

Ein grosse envy ich have.

Zpekdacular.

Group buy 98% discount ?

I just watched the video. Man, that is small! You fit a lot of cool features in such a tiny package. Beautiful work!

Beautiful design, a work of art.

Cooles Teil!! :crown:

Wowser! You are one talented craftsman/designer/programmer/electronics guru/+. Congrats on that beautiful creation. :slight_smile:

unpackbar cool!

great build :slight_smile:

Very nice.

Wow, that is an amazing piece of tech. Specially the housing with carbon fiber.

Very nice!

I take it you will be in the next scratch-build contest?? :wink:

Now that’s what I call a Multi-Tool! :smiley:

Hey Guys,

thanks for all the nice words. it was a pain to complete the Handschmeichler, cause all is very small. i will make some pictures from inside these days. all is wired with paint wire from an old transformer so it look really confused.

the body is made out of aluminium and stonewashed after grinding.

i have some new ideas to expand the software: shut off the display with a double click, cause this is really bright when use the red led at lowest level. and include a zero function to the spirit level to messure the absolute angle.

thanks again, Markus

thats so cool man

This forum has a lot of members whose skills I only can admire, but never could copy.
Without putting them down, by comparing apples with pears and/or oranges, this is a work of art of a different category.

Just to have the vision to create such a complex device. And then fabricating it and making it function properly.
Absolutely magnificent!
In terms of skills: I’m from the other (far) side of the spectrum.

Me too Henk… I’m learning equipment design now. Hope I could contribute to the community one day… :slight_smile:

Hi,

i build i new one for me with some additional cool features. I added a Ti Tmp007. This is a really small contactless ir temperature sensor.
At the top cover is a xml2-wrgb led. you can fade through the rainbow via the pot and regulate brightness of the selected color. You can switch to white light (mixed from rgb) and regulate brighness. You can randam fade through colors automaticaly and also regualte the brighness. Each die of this led is connected to a 7135, so 380mA. The alu board is glued to a small alu pedestal inside the case. so thermal transfer is given. the white led die is used for the activity state of the 128gb usb memory without a 7135.
The top cover is made out of a sandwich with 0,3mm carbon and 1,0mm red zeder wood. both is glued together with superglue and a lot of pressure. the wood is also stabalized with superglue under vacuum. all in all this was a long try and error to get a durable cover made out of wood.