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- void setup()
- {
- Serial.begin(9600);
- }
- void loop()
- {
- while(Serial.available() > 0)
- {
- char lettre = Serial.read();
- if(lettre >= 65 && lettre <= 90)
- {
- lettre += 32;
- }
- else if(lettre >= 97 && lettre <= 122)
- {
- lettre -= 32;
- }
- Serial.print(lettre);
- }
- }
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