YouTube: Video fodder for creators heise online

Here are some YouTube channels that I’ve been introduced to by chance over the past few weeks and that I think will be interesting to you.

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les lab

Lasers are fascinating. If you want as much accurate information as possible beyond Wikipedia, that’s it lace channel Suitable. Repairing lasers, understanding them, using them, experimenting with lasers, everything here is very well prepared and educational without being boring. Everything in easy to understand English (UK).

The first video I saw is about driving a laser diode beyond specification using nanosecond pulses. For this purpose, a driver board has been developed and explained, including corresponding experiments on a (professional) optical bench. Laser videos take up the most space in Lace Lab with 43 videos.

metal case

The focus is on yourself channel Very simple: build a 3D printer that prints metal. The manufacturer originally tried to develop an SLM (selective laser melting) process in his garage. Later he turned to “wire based laser printing”. I think the combination of three lasers and a “wire whitening machine” is quite advanced, with amazing results. As good as the first layers looked, the higher layers are probably the real art.

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“Metro Awakening” attempted: VR psychotrip through dark tunnels

In the latest video he shows the problems and dedicates himself again to the SLS process, the showpiece being an attractive bench made of stainless steel.

lftkryo – musician and crazy engineer

became known linus By converting two Commodore C64s into a playable accordion.

The video suggested to me by YouTube was about a theremin, of course it was also based on the C64 and was built with only a spoon, a clamp and a “secret” six other components. The C64 only has two analog inputs for paddles on the joystick input, which are quite weak. I was curious. The secret lies in two NE555 chips, which convert the capacitance changes of the “receiver” oscillators (clamp and spoon, i.e. capacitors and a resistor) into a changing frequency and output them digitally as a square wave on the user port. We do. Then some assembler evaluates it and controls the pitch and volume. This may make you want to recreate something similar, perhaps using an Arduino as a sound generator. The videos are always educational and filled with a lot of information about the projects.

Another video about making music on C64-SID chips from the BASIC prompt is very inspiring, even if assembling machine language from BASIC to data lines is a bit much for my average brain.

professor robotics

Professor Lau said in his statement really small canal (less than 100 subscriptions) Some tutorials on measuring instruments, possibly at the university where he teaches. The video that brought me to this channel is about how you can use a light emitting diode as a detector for single photons: a SPAD (Single Photon Avalanche Detector). In fact, this is the first video on the channel.

As an amateur astronomer, it completely fascinated me that, ultimately, neutrino detectors are about measuring these light particles; The experimental setup is quite simple, and I will test the LEDs I have collected over several years to see if they are suitable. The end result is a project in which Lau counts photons with an Arduino, but these can already be detected with an oscilloscope. It’s a shame there’s no follow-up video.

(crow crow)