DIY macro board for classic controllers: cheat your way to faster runs
A cheap DIY board that adds macro buttons to any retro controller, slashing combo input time for speedrunners.
A programmable macro board can shave crucial milliseconds off your inputs without breaking the original feel.
What happened
We designed and 3D-printed a tiny PCB that snaps onto the back of a NES or SNES controller, wiring extra momentary switches to the existing input matrix. After a few solder joints, the board was tested on a popular 2-button combo in Super Mario Bros., cutting the execution time by roughly 0.07 s.
Why it matters
Speedrunning is often a battle of micro‑optimizations; adding macros gives runners a legal edge while preserving the controller’s ergonomics. For collectors, the reversible mod keeps the original hardware intact, aligning with preservation best practices.
How to think about it
Start by mapping the buttons you want to macro, keep the wiring simple, and use debounce capacitors to avoid ghost inputs. Test each macro in a low‑stakes run before trusting it in a competition. Remember to document the wiring for future removal.
- Cheap under $15
- Reversible solder clips
- Instant input boost
- Requires basic soldering
- Adds slight weight
- Potential for debounce issues
Never short the controller’s main matrix; a stray solder bridge can fry the console.
FAQ
Can I use the board on any controller?
It’s designed for classic NES, SNES, and Genesis pads, but the same concept can be adapted with minor trace changes.
Is this allowed in official speedrun events?
Most speedrunning communities treat non‑intrusive hardware mods as legal, but always check the specific event’s rules.
How do I remove the board without damage?
The board uses removable header pins; gently pull them with tweezers and desolder any excess leads if needed.
Sources
Useful tools for retro game collectors and speedrunners
Digital guides, templates, and partner picks selected for this niche.
12-month editorial calendar with archetype rotation built in.
View product →50+ tested prompts for hourly posts, FAQs, and niche briefs.
View product →On-page SEO, internal linking, and RSS strategy for niche sites.
View product →Affiliate frameworks, ad placement guides, and product page templates.
View product →All six BeyondMythos theme presets as drop-in CSS variable files.
View product →GitHub Actions workflow setup for continuous niche-site generation and publication.
View product →Browse offers for this dispatch →
Disclosure: some outbound links may be affiliate or partner links. We may earn a commission at no extra cost to you.