This is an exmple of a code writen with the IDE and tested with the termnal include into IDE. Every thinks are OK, the Serial.available() works fine. setup() { Serial.begin(57600) ; Serial.println("Hello, world!") ; ... } loop() {... i = Serial.available() ; sprintf(errmsg," AVAIL %d",i); Ser…

serial.available OK with IDE and KO with C language

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