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Forum Index : Microcontroller and PC projects : Could anyone do this with one of the Micromites?

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lew247

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Joined: 23/12/2015
Location: United Kingdom
Posts: 1702
Posted: 10:32am 13 May 2023
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DIY Laser Projector - Built from an old hard drive Video on Youtube
 
matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 10636
Posted: 10:42am 13 May 2023
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Definitely with the PicoMite using PIO - would be much better as no jitter
 
RonnS
Senior Member

Joined: 16/07/2015
Location: Germany
Posts: 121
Posted: 10:20pm 13 May 2023
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  lew247 said  DIY Laser Projector - Built from an old hard drive Video on Youtube


nice !

For beautiful laser effects you can also glue a mirror to a loudspeaker and then control it with different frequencies

Ron
 
stanleyella

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Joined: 25/06/2022
Location: United Kingdom
Posts: 2681
Posted: 11:15pm 13 May 2023
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I had a gas tube laser and it used 2 stepper motors with mirrors.
lasers are cheap and the hardware/mirrors etc. also... but why a raster scan text display? A really cheap vga projector? they actually work.. in a dark room.
 
Volhout
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Joined: 05/03/2018
Location: Netherlands
Posts: 5483
Posted: 10:41am 14 May 2023
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Hi lew,

Pretty obvious the mechanics are the challenge. The software, using PIO, looks very doable. Even the time synchronisation between mirrors.
Constant speed on the motor is a dual pwm. Picomite can do it.

Volhout
PicomiteVGA PETSCII ROBOTS
 
Frank N. Furter
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Joined: 28/05/2012
Location: Germany
Posts: 1002
Posted: 06:48pm 15 May 2023
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With 8 cheap lasers and 1 mirror you can make it much easier.

Frank
 
pwillard
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Joined: 07/06/2022
Location: United States
Posts: 324
Posted: 07:18pm 16 May 2023
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Note: This style of laser tech was being done in the 1970s
 
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