Serial Servo HATs and Raspberry Pi, Arduino expansion boards 3:15 pm October 2, 2023 By Julian Horsey While building robotics projects, the importance of controllers and motors cannot be overstated.

In this Arduino project, I show you how to build a simple servo laser tower controlled from a smartphone app called Blynk.

An Arduino is a popular open-source single-board microcontroller. Learn how to program one and let the possibilities take shape.

Although there are other ways to do this, [Rod] has decided to write up his method of using two Arduinos and the I2C protocol to expand an Arduino’s IO capacity. As seen in the picture above,… ...