Category Archives: Arduino Hacks

Using A Vending Machine Bill Acceptor With Arduino

We’ve all seen, and occasionally wrestled with, bill acceptors like the one [Another Maker] recently liberated from an arcade machine. But have you ever had one apart to see how it works? If not, the video after the break is an interesting peak into how this ubiquitous piece of hardware …read more

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Posted in Arduino Hacks, bill acceptor, counterfeit, ir led, money, parts | Leave a comment

A Really Garbage Project

No matter who you are,  you produce garbage of some kind or another. Two students decided they wanted to create a smart garbage can that could alert them when the can is full or even when it is stinky.

We will go on on the record: we didn’t know that …read more

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Posted in alcohol sensor, Arduino Hacks, blynk, garbage, IoT, trash | Leave a comment

Measuring UV-C For About $5

Looking to sterilize something? Give it a good blast of the old UV-C. Ultraviolet radiation in the shortest wavelength band breaks down DNA and RNA, so it’s a great way to kill off any nasties that are lurking. But how much UV-C are you using? [Akiba] at Hackerfarm has come …read more

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Posted in arduino, Arduino Hacks, led hacks, UV-C, Zap | Leave a comment

Automating Hand Sanitizer — If You Can Find Any

We once saw a Romeo and Juliet production where the two families were modern-day mob families with 3-piece suits and pistols. If they made King Richard III set in this week, the famous line might be: “Hand sanitizer, hand sanitizer, my kingdom for hand sanitizer!” Even if you have a …read more

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Posted in arduino, Arduino Hacks, Covid-19, fishing line, hand sanitizer, servo | Leave a comment

Another PC Power Supply Project

Economy of scale is a wonderful thing, take the switch-mode power supply as an example. Before the rise of the PC, a decent multi-voltage, high current power supply would be pretty expensive. But PCs have meant cheap supplies and sometimes even free as you gut old PCs found in the …read more

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Posted in ACS712, Arduino Hacks, atx, pc power supply, power supply, tft, tool hacks | Leave a comment

LEGO My Colorful Custom Clock

[Sofia] spent a lot of time looking around for the perfect LEGO clock. Eventually, she realized that the perfect LEGO clock is, of course, the one you build yourself. So if you find yourself staring at the same old boring clock, contemplating time and the meaning of time itself, why …read more

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Posted in Arduino Hacks, clock, clock hacks, DS3231 RTC, led matrix, lego, LEGO clock, real time clock | Leave a comment

MIT Ventilator Designed with Common Manual Resuscitator; Submitted for FDA Testing

In many parts of the world the COVID-19 pandemic is causing shortages in hospital space, staff, medical supplies, and equipment. Severe cases may require breathing support, but there are only so many ventilators available. With that in mind, MIT is working on FDA approval of an emergency ventilator system (E-Vent). …read more

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Posted in Arduino Hacks, Covid-19, Medical hacks, mit, news, ventilator | Leave a comment

Eavesdropping Assistant Disturbs The Sound Of Silence

Unless you happen to be from Finland, this is just an all too familiar situation: you’re stuck in an inescapable situation with this one person who is really more of an acquaintance than a friend, and neither of you knows who should say something in hopes of keeping a conversation …read more

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Posted in arduino, Arduino Hacks, Assistant, dc motor, laser cut, microphone, social interaction | Leave a comment

Baby Keyboard Is Really Three Boards

Just when we think we’ve peeped all the cool baby keebs out there, another think comes along. This bad boy built by [andyclymer] can be configured three different ways, depending on what kind of control you’re after.

As designed, the PCB can be used as a six-switch macro keyboard, or …read more

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Posted in Arduino Hacks, CircuitPython, keyboard, macro keyboard, rotary encoder, trinket m0 | Leave a comment

Seven-Segment Shelves Do Double Duty

[Lewis] of [DIY Machines] was always on the lookout for that perfect something to hang above the couch. After spending a lot of time fruitlessly searching, he designed and built this awesome shelving unit with recessed lighting that doubles as a huge 7-segment clock.

The clock part works as you …read more

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Posted in arduino, Arduino Hacks, arduino nano, clock hacks, RGB LED, ws2812b | Leave a comment