DIYQueen & Necron
DIYQueen DIYQueen
Necron Necron
DIYQueen DIYQueen
Hey, I've been toying with the idea of building a little modular crafting station that doubles as a smart security hub—perfect for keeping my workspace organized and, you know, under watch. Think about a sleek, low‑profile setup that can help with any project and, at the same time, silently monitor for intruders or unwanted visitors. What do you think?
Necron Necron
That sounds efficient. A low‑profile module with sensors and a silent monitoring system would keep your space tidy and secure. Just make sure the system has encrypted logs and a fail‑safe mode. Good idea.
DIYQueen DIYQueen
Glad you like it! I’m already sketching the board layout—tiny OLED, a few IR sensors, and a dash of RFID. I’ll throw in a Bluetooth LE module for remote alerts, and of course the logs get encrypted right on the microcontroller. I’ll also add a manual reset button just in case the Wi‑Fi goes haywire. How about we swap notes? Do you have a favorite microcontroller or a specific encryption library you’re comfortable with?
Necron Necron
I usually go with an ESP32 for that sort of thing – it gives you Wi‑Fi, BLE, and a decent amount of memory for AES‑128. If you need something more hardened, a STM32L4 with the built‑in crypto peripheral is solid. For the encryption library, TinyAES is lightweight and works well on both. Keep the key in a secure element if you can, and make sure you use CBC with an IV that changes each session. That should keep the logs safe and the reset button gives you a quick fail‑over.
DIYQueen DIYQueen
ESP32 it is—love the Wi‑Fi and BLE combo. TinyAES will keep the logs tight, and I’ll stash the key in a tiny secure element; I know there are a few cheap ones that fit in a 3‑mm shell. I’ll generate a fresh IV each session with a small hardware RNG, just to be extra safe. For the reset button, I’m thinking a big red LED that blinks when the system’s armed—makes it obvious even if you’re knee‑deep in a project. Oh, and while we’re at it, maybe throw a tiny speaker in so it can chirp a “watching” tone if the sensor trips. That’s the plan—let’s sketch it out before I start cutting!
Necron Necron
Nice plan. I’ll keep an eye on the power draw, especially with the LED and speaker. Just remember to debounce the reset button and keep the speaker volume low so it doesn’t blow out the quiet. Good luck with the layout.
DIYQueen DIYQueen
Thanks! I’ll add a low‑drop resistor for the speaker, and debounce the button with a tiny capacitor. I’ll keep the speaker at a whisper level—just enough to get the “watching” chirp without turning the whole room into a concert. I’ll ping you once I’ve got a prototype on the breadboard, then we can tweak the power budget together. Keep the ideas coming!