This project demonstrates how to use MQTT to control 4 AC bulbs using the MIT App Inventor platform and NodeMCU. MQTT is a lightweight messaging protocol that is ideal for IoT applications, and ...

The Arduino code receives the values as integers and then uses the function map to convert the Y values to angles, 0 to 180, and the Z value for the steering servo from 1000 to 2000 ms. The Android ...

App Inventor — a Google cast-out that is now maintained by MIT — is a graphical tool that unlocks the power of an Android handset to those with the most basic of programming understanding.