Cloud controlled traffic barrier 

Resistor 680 ohm 0.4w

Arduino IoT Cloud

Arduino Lab for Micropython

Arduino Nano RP2040 Connect

Arduino Cloud Entry Plan - 1 year

5V Power Source

10 jumper wires 150mm male

<html><body>This is a little experiment with Arduino Cloud and Micropython.We're going to build a toy traffic barrier with some Lego bricks, an Arduino Nano RP2040 Connect, a breadboard and a few wires.The status of the barrier is controlled from the Cloud, based on the value sent by another Arduino board, which, in turn, is connected to the Cloud.The two boards can share the same variable via "Thing to Thing" communication (see https://docs.arduino.cc/arduino-cloud/features/thing-to-thing/)This project was used as a demo in the talk "Car license plate recognition with TinyML" (see https://medium.com/arduino-engineering/car-license-plate-recognition-with-tinyml-e594f08ecacb)</body></html>

GitHub link of the micropython sketch

Diagram of components

An Arduino Cloud variable with "Thing-to-thing" communication

Cloud controlled traffic barrier

A little experiment with Arduino Cloud and Micropython, running on an Arduino Nano RP2040 Connect