How to effectively use and transmit data over distance up to 4 km. The post explains each and every step for communicating between host and slave. A demo project is presented in the post. Which is a communication between Arduino Mega and Ardu
Meet Baby Bastion, the Overwatch inspired animatronic puppet! There's a huge variety of DIY robot projects on the internet, but a lot of them lack a means to express emotion. This instructable has lots of useful mechanisms that will help you take your robot to the next level.
Cheap Scalable Arduino CNC, Plotter, Mill, 3D Printer... (MPCNC)