![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEguZNoCoVzJH9uWoNI12JjufyGB5v6MDCvznEk1D8yirlTgqQTSKhH4DVS6zM9lLwq5Uj2p4BtmizpSjihxLO3FyvfELpM01QOZM95HNvLVYhMH3mE3Dlq4nAm1acXsuYbBnA5Tywm6TAc4/s640/Screenshot+2017-01-21+01.54.41.png)
int btn=0;
void setup(){
pinMode(8,INPUT);
pinMode(11,OUTPUT);
}
void loop(){
btn=digitalRead(8);
digitalWrite(11,btn);
}
Exercício: Implemente este circuito baseado no esquema acima. Inicialmente simule e depois monte o circuito real. Use R1 = 220 ohms e R2 = 10kohms. Uma solução é mostrada a seguir:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkcul20Mtezdi_zYvfuNiizqkei-kT1vfQnAhGgSuJMoGPNbXm5Aqkh8viHsyYD3RX9RtfUDu2WmbE3pTXQaHEOgi2VRv53BDbusHeMWJw2CNvkOCVjY7Amt7XiH8TxFM5hyphenhyphenTY4D3xFPtX/s640/Screenshot+2017-01-21+02.05.40.png)
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