How much street light poles can be controlled by installing automatic street light system using Arduino?



The answer is finite.
First of all we can automate the street lights directly on each and every light by installing LDR (Light Dependent Resistor) sensor, which will turn the street lights ON and OFF on their own. But if we are using a microcontroller like Arduino to process. By the digital read/write pins of a normal Arduino UNO board, we can only control about  a 14 (fourteen) street lights. 

So we can control over 14 automatic street lights by using Arduino.

  Have fun :)


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