Child-sized wheelchairs can be difficult to come by, and unfortunately aren’t as much fun as something like a ride-on car. The South Eugene Robotics Team, or FRC2521, decided to address both challenges by building a mini Jeep augmented for kids with limited mobility.
Instructions found here detail how to modify the battery-powered toy, including what can be recycled and what extra parts will need to be purchased. In the new configuration, the Jeep’s two rear motors are configured for differential control, with the input regulated by an Arduino Nano and a pair of electronic speed controllers (ESCs).
In this project, a joystick replaces the original pedal and steering wheel, and it looks like a lot of fun when implemented in the similarly-outfitted firetruck below.
Model cars can be fun to use and look at, but when driving one it’s difficult to get the same sort of movement in the suspension as a full-sized vehicle. To enhance his 65cm long 8.5:1 Oldsmobile Dynamic 88, creator Dimitar Tilev turned to an active suspension system controlled by four micro servo motors.
When maneuvering the little beast, an Arduino board along with an MPU-6050 IMU allow it to raise and lower each wheel individually based on the forces it experiences, giving an amazing approximation of an actual car’s behavior.
The build also features a sound effects system to simulate engine noises and exhaust pops, and an attention to detail in the styling that sets it apart as something really special.
Millions of users and thousands of companies across the world already use Arduino as an innovation platform, which is why we have drawn on this experience to enable enterprises to quickly and securely connect remote sensors to business logic within one simple IoT application development platform: a new solution for professionals in traditional sectors aspiring for digital transformation through IoT.
Combining a low-code application development platform with modular hardware makes tangible results possible in just one day. This means companies can build, measure, and iterate without expensive consultants or lengthy integration projects.
Built on Arm Pelion technology, the latest generation of Arduino solutions brings users simplicity of integration and a scalable, secure, professionally supported service.
“By combining the power and flexibility of our production ready IoT hardware with our secure, scalable and easy to integrate cloud services we are putting in the hands of our customers something really disruptive,” commented Arduino CEO Fabio Violante. “Among the millions of Arduino customers, we’ve even seen numerous businesses transform from traditional ‘one off’ selling to subscription-based service models, creating new IoT-based revenue streams with Arduino as the enabler. The availability of a huge community of developers with Arduino skills is also an important plus and gives them the confidence to invest in our technology”.
The new Arduino Portenta H7 is now available for pre-order on the Arduino online store, with an estimated delivery date of late February 2020.
If your robotic vehicle will only work on smooth surfaces, the choice of a wheel is obvious. For more rugged bots, the same applies with knobby wheels. For those that need to operate in both environments, however, the Adaptive Field Robot presents a new solution in the form of wheels that actually change dynamically depending on the terrain.
This Arduino-powered robot is able to transform its two driving wheels from a nearly circular shape into a claw-like arrangement using secondary motors that rotate along with the wheel assembly.
When the bot detects an obstacle in its path via an ultrasonic sensor, the motors springs into action, activating a rack-and-pinion system that expands the two halves of the wheel into “claw mode.”
Be sure to check out this innovative robot in the video below, including some trial-and-error during the development process.
If you need another idea for how to creatively diffuse LED lighting, then look no further than the “Light Me Up!” project by Hyewon Shin, Eunjeong Ko, and Junsung Yi.
Their setup uses 312 3D-printed and laser-cut light triangles, each of which contains a trio of RGB LEDs. Users select the desired light by pressing the triangles themselves, via buttons concealed beneath the main assembly. Several Arduino boards are used to control the massive structure.
With such an involved triangular display, a number of interesting 3D-like shapes and even words can be created by users. Alternatively, smaller triangle arrangements can also be constructed using the same build concepts.
This project has several triangles that form a hexagonal shape. So you can create stereoscopic patterns according to how you design light! Just press each piece and various colors will be gradated, and when the color you want comes out, just hit the hand you pressed and it will continue to shine beautifully with the color you wanted!
Check out its triangular luminescence in the videos below!
When you need to test a single servo, it’s a fairly straightforward task. Just hook it up to an Arduino to generate the proper PWM signal, along with an appropriate power supply, and you’re in business. If, however, you need to test a bunch of them at the same time, things get a bit more complicated.
To solve this challenge for another project he’s working on, Will Cogley built a 3D-printed tester capable of experimenting with 16 servos at the same time.
The device runs on an Uno, and uses four potentiometers and two buttons for controlling the motors in sets of four. Settings from all 16 outputs are displayed on a 1.8” TFT screen and an Adafruit 16-channel driver is implemented to interface with the servos directly.