Uploaded May 2013 | Updated September 2026, 3 weeks ago
How to make a music player using the 555 timer chip, as well as a maze solver. This shows how the player head is made as well as the resistances for the pencil mark/graphite variable resistors.
The step-by-step instructions for making the 555 timer circuit can be found my other video here "555 Timer Music Instrument How to Make":
youtu.be/rTmlR8B-u5c
As a quick add-on, it also shows how to solve a maze using this same circuit.
For the webpage with written details about this music player and with the spreadsheet I mentioned in this video, go here:
rimstar.org/science_electronics_projects/555_timer_music_instrument.htm
For how to power a piezoelectric crystal using rain water to light an LED, see "Piezoelectric generator LED lit by rain water":
youtu.be/laSQ6yd7jaE
For how to use a fresnel lens from a rear projection TV for a solar cooker, see "Fresnel lens solar cooker using TV lens":
youtu.be/wprlzCDfLm8
To follow me on Twitter:
twitter.com/#!/RimStarz
rimstar.org
Music used throughout:
The Path of the Goblin King Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0
creativecommons.org/licenses/by/3.0
ISRC: USUAN1100873
The idea for the maze and the original idea (though I took it in a different direction) for the music player came from:
youtube.com/user/IEEEKentucky
How to make a music player using the 555 timer chip, as well as a maze solver. This shows how the player head is made as well as the resistances for the pencil mark/graphite variable resistors.
The step-by-step instructions for making the 555 timer circuit can be found my other video here "555 Timer Music Instrument How to Make":
youtu.be/rTmlR8B-u5c
As a quick add-on, it also shows how to solve a maze using this same circuit.
For the webpage with written details about this music player and with the spreadsheet I mentioned in this video, go here:
rimstar.org/science_electronics_projects/555_timer_music_instrument.htm
For how to power a piezoelectric crystal using rain water to light an LED, see "Piezoelectric generator LED lit by rain water":
youtu.be/laSQ6yd7jaE
For how to use a fresnel lens from a rear projection TV for a solar cooker, see "Fresnel lens solar cooker using TV lens":
youtu.be/wprlzCDfLm8
To follow me on Twitter:
twitter.com/#!/RimStarz
rimstar.org
Music used throughout:
The Path of the Goblin King Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0
creativecommons.org/licenses/by/3.0
ISRC: USUAN1100873
The idea for the maze and the original idea (though I took it in a different direction) for the music player came from:
youtube.com/user/IEEEKentucky










![Pyramid Hologram - How to Make/How it Works with Princess Leia Hologram
Easy to make hologram showing Princess Leias message from Star Wars IV, a flying pterodactyl and a skull. All you need to make is a 4-sided clear plastic pyramid and a drawing with 4 different views of an image. Some of mine are even animated.
Download the animations/images I used in this video here:
http://rimstar.org/science_electronics_projects/hologram_pyramid_diy_homemade.htm
Support RimstarOrg on Patreon https://www.patreon.com/user?u=680159
Subscribe for new videos every week http://www.youtube.com/user/rimstarorg?sub_confirmation=1
Go to the main channel page here https://youtube.com/rimstarorg
Note that strictly speaking, this isnt actually a hologram. A hologram refers to a thing created using a specific process and involves the use of laser, interference, diffraction, light intensity recording and suitable illumination of the recording [from wikipedia]. This pyramid hologram is really 4 views using a trick called Peppers Ghost, the result being something that is popularly known as a hologram.
See also:
Adding Lasers to Star Wars TIE Fighter and Star Trek Enterprise Models
https://www.youtube.com/watch?v=VxIEV27AjWQ
How a Prism Works to Make Rainbow Colors
https://www.youtube.com/watch?v=JGqsi_LDUn0
How to Make/Build a Crystal Radio
https://www.youtube.com/watch?v=VqdcU9ULAlA
Inspiration for this came from slider2732s video here:
https://www.youtube.com/watch?v=Mz_0ktL9DtM
Follow behind-the-scenes on:
Twitter https://twitter.com/#!/RimStarz
Google+ https://plus.google.com/116395125136223897621
Facebook https://www.facebook.com/rimstarorg
http://rimstar.org
Music used for the introduction:
Take a Chance Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0
http://creativecommons.org/licenses/by/3.0/
Music used after the introduction:
Maraton Man
Music by http://audionautix.com Pyramid Hologram - How to Make/How it Works with Princess Leia Hologram](https://i.ytimg.com/vi/UFhhIOaGW7U/mqdefault.jpg)