Archive for the ‘Uno’ Category

Build an Arduino-powered magnetic drawing machine

Tuesday, March 21st, 2017

As touched on in this video by Charlotte Dann (aka “Charbytes”), she has magnets in her fingers.

This may or may not seem like a small detail, but either way it allows her to draw interesting shapes by passing them over a magnetometer mounted to an Arduino Uno. Dann’s sensor/Arduino package passes serial data to a computer, which does the “heavy lifting,” turning the input into beautiful colors on a computer screen.

It’s an interesting project, and the build process is nicely narrated in her video. A few highlights include a problem with “plastic weld” at 4:00, and a few electrical issues around 7:30 that she eventually solves. You can see more details on this project on its GitHub page, as well as check out Dann’s Twitter account to see what else she’s up to! (more…)

Easy ‘USB-ake’ Oven with Arduino Uno

Tuesday, March 21st, 2017

After procuring a new Easy-Bake Oven, engineer Jason Cerundolo decided to convert it to run off of USB. According to his project write-up, “USB-C spec allows for 100 Watts of power to be transferred through the connector, and that is the power rating for the oven, so it should work.”

The biggest modification in this build was dividing the heating element into six segments in order to power it with 20V allowed over USB-C. Finding a suitable charger for this device was also a bit of a challenge, but after 20 minutes, it was able to reach 300° F, producing five strangely-shaped but likely still tasty cookies! (more…)

“Smarten” a dumb switch without running wires

Wednesday, March 15th, 2017

Using a pair of Arduino Unos and nRF24L01+ modules, this hacker can now remote control his lights.

After struggling with a wall switch that was just too far from his desk to turn off without getting up, “Guyfromhe” decided to take matters into his own hands and rig up a servo to do it for him. The servo is simply hot glued to the switch plate, and when it gets a command, it obediently switches the lights on or off. Though crude, it seems to get the job done, and it wouldn’t be too hard to imagine a good bracket setup.

An Arduino Uno controls the servo, and takes signals from another Arduino via an nRF24+ RF module. He chose this wireless device as a simple transmission method, and one that uses less power than an ESP8266 that he also tried out. The non-servo Arduino can potentially take signals from several sources, including a Raspberry Pi, laptop, or even a hacked Amazon Dash button. (more…)

Talk to the (low-cost robotic) hand!

Tuesday, March 14th, 2017

Though this low-cost robotic hand by Maker “MertArduino” might not be the best platform for manufacturing, or even world domination, it does show off some interesting physical build techniques. The DIY device can mimic a human’s hand wirelessly via a pair of Arduino Unos and nRF24L01 modules.

For construction, the fingers and thumb are made out of springs and foam, and nylon cords are used to pull them closed with a small servo for each digit. Control is accomplished by flex sensors attached via zip ties to a glove. It’s a great demonstration of how you don’t actually need a 3D printer or other advanced CNC machinery to craft something really unique!

You can see the project in the video below, and check out more hacks on Mert Arduino’s YouTube channel!

WinchBot is a robotic arm composed of 3 winches and 5 servos

Monday, March 13th, 2017

Using an Arduino Uno along with a Raspberry Pi for control, hacker “HomoFaciens” came up with this clever delta-style robot.

If you were going to make a robot with five servos, many Makers would make a robot arm with them and call it a day. HomoFaciens, however, who is known for making amazing machines with minimal tools and improvised materials, instead made something that seems to be a cross between a delta robot and a Skycam.

His device, called “WinchBot,” uses three winches attached to an equilateral triangle frame to move a slider on a central pivoting square rod. This allows the robot’s 5-axis “hand” to be positioned within the robot’s work area. The servos are then tasked with keeping everything in the correct orientation, as well as opening and closing the gripper as needed. (more…)

Heat up a small pool with this solar-powered system

Thursday, March 9th, 2017

Imgurian “ElectricYFronts” has created an Arduino-controlled solar heating system for his kids’ paddling pool.

Small semi-portable above ground pools can be fun, but are generally not heated. The “Solar Paddle” system, however, raises the temperature of the pool from a chilly 68 degrees Fahrenheit to a much warmer 83 degrees (20 to 28 Celsius). It does this by piping water into and out of the pool, then heating it in over 200 yards of black watering pipe on top of a shed.

Water is cycled via an impeller pump, which is powered by a solar panel along with a battery to keep power even over fluctuations. A few buttons and an LCD panel allow things to be changed around without opening up the Arduino Uno’s enclosure. (more…)

A cool infinity mirror-style bottle opener

Tuesday, March 7th, 2017

In his quest to create “the coolest wall-mounted bottle opener in the entire world,” it would appear that YouTuber “Never Stop Seeking” has succeeded.

As seen below, the infinity mirror-style unit is made of plexiglass and two-way mirror film, and equipped with Arduino Uno-controlled RGB LED strips that are activated by a proximity sensor as you open a beer or soda. He even included a magnetic catch for his bottle caps!

Want to build one of your own? Good news, Never Stop Seeking plans on sharing more details along with a how-to video in the coming days. (more…)

This animatronic device turns speech into sign language

Friday, March 3rd, 2017

Using a couple Arduinos, a team of Makers at a recent McHacks 24-hour hackathon developed a speech-to-sign language automaton.

Alex Foley, along with Clive Chan, Colin Daly, and Wilson Wu, wanted to make a tool to help with translation between oral and sign languages. What they came up with was an amazing animatronic setup that can listen to speech via a computer interface, and then translate it into sign language.

This device takes the form of two 3D-printed hands, which are controlled by servos and a pair Arduino Unos. In addition to speech translation, the setup can sense hand motions using Leap Motion’s API, allowing it to mirror a person’s gestures. (more…)

Remotely control a sumo bot with a gaming wheel

Tuesday, February 28th, 2017

Using an Arduino Uno, Nano, and two Bluetooth modules, engineering student “Roboro” can now remotely control his sumo robot.

Like many hackers, Roboro had an old gaming controller that he wasn’t using, in this case an Xbox steering wheel and pedals. Naturally, he converted it into a controller for his sumo robot, which can now be driven manually. This involved wiring the wheel controls into an Uno; the smaller Nano was used onboard the bot.

Rewiring a controller is nothing new, but what is also quite interesting from a hack point of view is that the Arduinos communicate over Bluetooth. When initiated, the controller connects itself to the robot, which can then be driven around (as long as it doesn’t get stuck in the hardwood). (more…)

Log high-altitude balloon data with this Arduino device

Monday, February 27th, 2017

Wanting to see data from their high school’s HAB launch, 9th grader “Spaceshark” and a few of his classmates decided to build their own data tracker.

According to the project’s write-up, Spaceshark’s school has an astronomy club which sends HABs to the edge of space. Although the 360-degree video embedded here would be enough to satisfy most people’s curiosity, this team wanted more data!

Spaceshark’s group proceeded to create a data logger using an Arduino Uno, along with sensors to collect data on the satellite’s latitude and longitude coordinates. Altitude, wind speeds, time, and the satellites in view can also be recorded, saving readings on a microSD card for later analysis. (more…)

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