![]() ![]() All things we’ve seen in some form or another in the past. There’s even a common SSD1306 OLED display on the unit to show the data locally. Its MH-Z14A NDIR CO2 sensor and GP2Y1010AU0F optical dust detector are read by a WiFi-enabled microcontroller, this time the Arduino Nano RP2040 Connect, which ultimately reports its findings to the user via Telegram bot. They’re pretty similar functionally as well, with the only variation usually coming in the protocol used to communicate their bits of collected data.īut even when compared with such an extensive body of previous work, this Jigglypuff IoT environmental monitor created by is pretty unusual. They usually take the form of a microcontroller, a couple sensors, and maybe a 3D printed case to keep it all protected. We’ve seen a lot of environmental monitoring projects here at Hackaday. Of course, if power electronics design is your thing, we’ve got you covered there, too.Ĭontinue reading “Quick And (Not Very) Dirty Negative Voltage Supply” → Posted in Misc Hacks Tagged boost converter, boost-buck converter, buck converter, inverter, negative voltage, power supply For the majority of us, a quick and easy solution like this will get the job done and allow us to focus on other aspects of the design without having to spend too much time worrying about the power supply. Of course, if you have strict power supply requirements you probably want to shell out the cash for a professionally-built one, or design one yourself that meets your exact needs. voltages, but he manages to circumvent some of them with a little clever rewiring and a bit of bodge work. There are a few caveats, of course, including high start-up current and limited max. He realized that by swapping around the inputs and outputs of the regulator you can essentially invert the potential produced. In a recent video, he demonstrates how to turn a “China Special” $1 buck converter from Ebay into a boost-buck converter, capable of acting as a negative voltage supply. ![]() As it turns out, there are a ton of ways to get the job done, from expensive power supplies to fancy regulators you can design, but if you’re lazy (like I am) you might just want a simple, nearly drop-in solution. There also comes a time, usually ~10ms after realizing this, when they reach for the Art of Electronics to try and figure out how the heck to actually introduce subzero voltages into their design. There comes a time in every hardware hacker’s career during which they first realize they need a negative voltage rail in their project. Video after the break.Ĭontinue reading “Cramming A DS Inside A Gameboy” → Posted in Games, handhelds hacks, Nintendo DS Hacks, Nintendo Game Boy Hacks, Nintendo Hacks Tagged Case mod, gameboy, nintendo, Nintendo DS But you might be asking, why? Why shove one handheld inside another handheld? Sometimes it’s to gain new functionality like this Raspberry Pi inside a PSP body. Overall, it’s pretty impressive to see Mario Kart DS running on both screens on the tiny handheld. Finally, after reseating a display connection and some careful soldering, it booted and started playing games. The fix ended up being a few wires that came loose during shipping. Testing various points and swapping components got closer to the root problems. So for to get inside to start troubleshooting involved a razor blade and patience. The original screw mounts had to be removed and the case glued back together to fit the DS motherboard. received the custom handheld from, which was somewhat damaged in shipping. Unfortunately, this mod lost touch screen functionality, limiting some of the games you can play. The chassis for this mod is a humble Gameboy color with a Gameboy SP screen tackled on the top to serve as the secondary display. Whether it’s turducken or a Nintendo DS inside a Gameboy, the result is always unexpected. Many holiday recipes and console hacks share a common theme: cramming a thing inside another thing. ![]()
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