As promised, here is my little report about the Andonstar ADSM302 digital microscope.
I've bought it at Welectron/Germany and they sent me this nice box.
Pictures of the unboxing:
One need 2 AAA batteries for the remote control, they aren't included.
The screen is crisp and of a good quality.
The unit reacts a bit sluggish and one has to point the rc directly to the microscope.
The structure of the menue is straightforward. Switching between video and (still) camera mode is one knob on the rc.
Plugging in the USB connector to the camera and the round DC connector into the backside of the stand for the LED lamps.
There is a remote control on this cable as well: it powers on/off the device and controls the brightness of the LED lamps.
The working distance varies between ca. 50 and 250mm which is (for me) more than enough to work with.
I did not check the connection to a PC or an external monitor with the HDMI cable. Will do this at another time.
I've inserted a 32GByte microSD card and made some pictures.
I haven't reduced the resolution of them, they are as they are saved by the microscope.
The pictures itself are stored in jpg format and are having a size of about 3.5MByte per picture.
Let's start with some resistors to check the colours of them:
Looking good so far. One can easily distinguish between red and brown which can be sometimes a problem.
On the second picture the resistor is ca. 4-5mm above the PCB but still looking crisp.
Next one is a simple adapter PCB for SMD transistors. I do like this nice little pointy hill in the middle of the pad.
This is a BSS138 SMD MOSFET transistor which can be soldered on the PCB adapter from above.
Next one is a Nixie tube, a Russian IN-15A. I took this picture, because I wanted to check on how many layers the digits are crisp.
These are some LTC3045 voltage regulators. I was curious about how good the microscope will focus through some transparent material.
The last two pictures are from a rare p-channel depletion MOSFET transistor which I thought, I could tinker with it.
Well. Not one of the best ideas I had.
The scaler shows distances of 0.5mm. I haven't found a PCB adapter board for this kind of package yet and even if I could get one: how to solder these bloody tiny thingies on it? Oh dear ...
The transistor is a FJ4B01120L1 and you can
get it for example from Mouser. And yes, this nasty little bugger has still some markings on it (right picture).
Thank you for watching.
If you are interested in some more details which I can test for you, please let me know.