This was my first try developing my own pcb with the toner transfer method. I did this project many years back but it works perfectly to this day.
It filters an audio signal and drives led strips so they pulsate to the beat of a song.
this post was submitted on 24 Oct 2024
92 points (100.0% liked)
Electronics
2001 readers
3 users here now
Projects, pictures, industry discussions and news about electronic engineering & component-level electronic circuits.
Rules
1: Be nice.
2: Be on-topic (eg: Electronic, not electrical).
3: No commercial stuff, buying, selling or valuations.
4: No circuit design or repair, tools or component questions.
5: No excessively promoting your own sites, social media, videos etc.
Ask questions in https://discuss.tchncs.de/c/askelectronics
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
I just printed the design on a glossy paper and used an iron to transfer the toner from the paper onto the pcb (last image). The toner protects the underlying copper in the etching process, so only the free copper gets etched away. I used Na2S2O8 for etching.