Building gas thruster-controlled drone

Building gas thruster-controlled drone

In the Earth’s atmosphere, a drone can adjust its heading by varying the speed of the propellers, and thus the thrust output of each. If you wanted to land something on a lunar surface, or maneuver a spaceship, the lack of atmosphere means a different technique must be used.

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Wake up to this unique VFD alarm clock!

Wake up to this unique VFD alarm clock!

If you’re a fan of novel timepieces, then you’ll want to check out Christine Thompson’s VFD Alarm Clock.

The device features a USSR-manufactured IV-27V 7-segment tube, capable of displaying 13 numbers or letters via a 24V supply, though the MAX6921 chip used here means that only 10 grids are used.

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3D printer converted into a cheap bioprinting rig

3D printer converted into a cheap bioprinting rig

While most 3D printers deposit melted plastic in carefully controlled positions to build up a physical model, a similar process called “bioprinting” can be accomplished with biological materials. Commercial bioprinters can cost tens of thousands of dollars or more, but as shown here you can make your own using the shell an inexpensive desktop machine.

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Plastic lid becomes Arduino Nano short circuit armor

Plastic lid becomes Arduino Nano short circuit armor

If you want to keep your Arduino projects safe, an electrical box is the traditional choice. But what if you want to apply protection directly to the board?

In the video below, “TheRainHarvester” shows us a novel and inexpensive method for hardening a Nano from short circuits and other minor exposure by simply melting plastic on the top.

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Quick Fix is a social media vending machine

Quick Fix is a social media vending machine

Do you want to grow your popularity on social media? Sure, there are those online services that could give your audience a boost, but if you’d prefer something a bit more tangible, then the “Quick Fix” vending machine is just the thing for you—and it even accepts actual currency.

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Build a fully functional binary clock with your Uno

Build a fully functional binary clock with your Uno

If you want to show everyone your computer prowess—or perhaps get a little practice—binary clocks are a great way to do so. These clocks express time in 1s and 0s instead of 0 through 9, and while the concept is pretty simple, actually creating one is less than straightforward… or used to be.

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Bitty is a tiny Arduino-compatible drum machine/synth

Bitty is a tiny Arduino-compatible drum machine/synth

There are a wide variety of ways to create electronic music. For a capable machine that fits in the palm of your hand and is loud enough to use outdoors, however, it’s hard to imagine a battery-powered device cooler than Bitty from Curious Sound Objects.

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FPV RC racing with the MKR WiFi 1010

FPV RC racing with the MKR WiFi 1010

Off-the-shelf remote-controlled cars can be a lot of fun, but Clem decided to take things up several levels with his heavily modified rig.

In the hack shown below, he outfitted an RC vehicle from the ’80s with an FPV camera, along with a MKR WiFi 1010.

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Make a mini CNC drawing machine

Make a mini CNC drawing machine

For an easy plotter design that you can build with only simple hand tools, be sure to check out this tiny project from Mr Innovative. The machine features a pair of stepper and lead screw assemblies to maneuver a pen in an X/Y plane, along with a clever string and servo setup to handle retraction.

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Remote weather station gets LoRa upgrade

Remote weather station gets LoRa upgrade

After deploying a remote weather station over two years ago, self-proclaimed ugly pirate Tecwyn Twmffat needed a better wireless communication solution.

Originally, his installation used a GPRS modem to transmit data over the cellular network, and while this normally worked quite well, the module would get booted off the network during updates.

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