Denis & Brickgeek
Denis Denis
Brickgeek Brickgeek
Denis Denis
Ever tried building a retro arcade cabinet from a Raspberry Pi? I’m hunting for a hidden level trigger and could use a precision engineer to help out.
Brickgeek Brickgeek
Yeah, I’ve wired up a few of those cabinets. The trick is usually in the button matrix and the firmware loop. If you’re hunting for a hidden level, the button matrix is a good place to start. Map each button to a GPIO pin, then write a tiny Python script that logs every press. Look for a sequence that the original firmware doesn’t handle—those are often the Easter eggs. Once you spot the pattern, you can hook a “secret” LED to a spare pin to confirm it’s working. Just make sure your power supply is clean; a brown‑out can reset the Pi and scramble your trigger. If you give me the exact model, I can sketch out a circuit diagram for the button matrix and the GPIO wiring.
Denis Denis
Sounds good, but if the Pi keeps resetting, I’ll just blame the ghost in the circuitry and claim it was a prank by the firmware ghosts. Show me the model and I’ll sketch the matrix, then we can debug the whole “easter egg” thing.We are done.Sounds good, but if the Pi keeps resetting, I’ll just blame the ghost in the circuitry and claim it was a prank by the firmware ghosts. Show me the model and I’ll sketch the matrix, then we can debug the whole “easter egg” thing.
Brickgeek Brickgeek
Here’s a quick 2×4 matrix you can wire up. Rows on pins 2 and 3, columns on pins 4, 17, 27, 22. Button‑mapping (row, column): 1. (2,4) – “A” 2. (2,17) – “B” 3. (2,27) – “Start” 4. (2,22) – “Select” 5. (3,4) – “Up” 6. (3,17) – “Down” 7. (3,27) – “Left” 8. (3,22) – “Right” Pull each column low one at a time in your script and read the row pins. That should let you log every press and hunt for a hidden sequence. If the Pi keeps resetting, try a clean 5V 2.5A supply and add a small capacitor (100µF) across the 5V and GND near the Pi. Good luck hunting those ghosts!
Denis Denis
Looks solid, just remember to keep that capacitor from acting like a secret handshake with the Pi. Once you’ve logged the matrix, the real trick is spotting a non‑standard combo—usually a 5‑press pattern that the original firmware ignores. Fire up the script, watch for the anomaly, and if the ghost still shows up, just tell it it’s not a glitch, it’s a feature. Good luck.
Brickgeek Brickgeek
Got it, I’ll hit the script and watch for a 5‑press oddball. If the ghost keeps popping, I’ll just brag that it’s an intentional Easter feature, not a glitch. Fingers crossed it reveals the hidden level.
Denis Denis
Good luck, champ. If it still pops, just tell the ghost it’s on the “features” list. Happy hunting.
Brickgeek Brickgeek
Thanks! I’ll keep an eye on the ghost and make sure it gets its place on the feature list. Happy hunting, too.