Arduino robotic arm – Record and play – Code and diagram
Hii.. from few days i was paying with hc-05 Bluetooth module. It is very easy to control. Since every smartphones have Bluetooth connectivity. So we can easily communicate to this module by smartphone.
Over the years we’ve seen quite a few successful attempts to create robotic air hockey opponents, but Andrew Khorkin has dedicated himself to a much harder task. He’s managed to build a robot that can not only play table hockey—a more onerous task than playing air hockey—but one that can slap the puck into the net from almost anywhere on the board with incredible accuracy.
To a human player, air hockey can feel frenetic and chaotic as they try to keep their eyes on that puck zipping back and forth across an air-cushioned table. But the game isn’t terribly hard for a robotic player to master, assuming they’ve got access to a camera sitting above the table. The puck’s movements are relatively predictable as it bounces around, and as long as the robot is able to move its paddle into position fast enough, it will never lose.
This 3D printable ” Baby MIT Cheetah” robot is easy to build, using simple components like Arduino and SG90 servos. The robot is able to run, walk, crawl, rotate and and run in different heights, take push ups and small jumps!
Drawing messages on the sand is perhaps as old as history itself, but Ivan Miranda has come up with a tracked vehicle to automate this ephemeral art form. In fact, what’s seen in the video below is his second take on a sand drawing robot, boasting a much faster print speed than his 2018 version with the caveat that it prints with less contrast.
The new device features 50 SG90 micro servos spread out across a piece of square tubing, controlled by a total of three Arduino Mega boards. These intermittently extend as they’re pulled forward by a tread system on each side to produce words. The build is so long that he has to actually extend his workbench to get it to fit, and at a weight of 13.5 kilograms (around 30 pounds) without the battery, he created a custom trailer assembly to walk it to the beach.
This RC sub has magnetic couplings to transmit torque through the walls. No need to drill holes = no leaks. At the end I test it in a swimming pool. Enjoy!
If you’d like to build a walking biped robot, this 3D-printed design by Technovation looks like a fantastic place to start. Each leg features three servos that actuate it at the hip, knee, and ankle for a total of six degrees of freedom.
Control is handled by an Arduino Uno board that rides on top of the legs, along with a perfboard to connect to the servos directly.
I have thought of creating a sensory system to be put on a self-driving mini toy car. This mini toy car is controlled by a Raspberry Pi 3 on which I have installed the ROS (Robot Operating System).
Building an electric bike isn’t easy, especially when using unconventional electronics, such as a drone motor. After 3 years of development, I have a bike that I’m finally happy with… but who knows what I’ll change next…