29 837
modifications
Modifications
Sauter à la navigation
Sauter à la recherche
Ligne 297 :
Ligne 297 : + + + + Ligne 339 :
Ligne 343 : + + Ligne 351 :
Ligne 357 : + + Ligne 362 :
Ligne 370 : + + + + + − /*+ − * getVoltage() - return the voltage of an analog pin − */ − + − // function to change the analog reading resolution − // THEN Arduino use the defaut 12 bits resolution! − // Under 12 bits resolution, the analogRead() returns − // a value between 0 & 1024. − // − // Convert digital value between 0 & 1024 to − // voltage between 0 & 3.3 volts. − // (each unit equal 3.3 / 1024 = 3.2 millivolts)
ENG-CANSAT-MISSION1-CAPTURE (voir la source)
Version du 29 octobre 2018 à 22:08
, 29 octobre 2018 à 22:08→The code explained
}
}
</syntaxhighlight>
</syntaxhighlight>
The {{fname|init_radio_module()}} function is called from the {{fname|setup()}}.
This function does all the stuff to initialize the RFM69HCW modules. Set the transmission power, the frequency and the '''encryption key'''.
<syntaxhighlight lang="c">
<syntaxhighlight lang="c">
Serial.println(" MHz");
Serial.println(" MHz");
}
}
</syntaxhighlight>
<syntaxhighlight lang="c">
void send_header() {
void send_header() {
// Send header about the data Serial.println(F("***START***"));
// Send header about the data Serial.println(F("***START***"));
}
}
</syntaxhighlight>
<syntaxhighlight lang="c">
void Blink(byte PIN, byte DELAY_MS, byte loops) {
void Blink(byte PIN, byte DELAY_MS, byte loops) {
for (byte i=0; i<loops; i++) {
for (byte i=0; i<loops; i++) {
delay( 3* DELAY_MS );
delay( 3* DELAY_MS );
}
}
</syntaxhighlight>
This function returns the voltage for the analog Pin.
It converts a digital value between 0 & 1024 (from ADC) to voltage between 0 & 3.3 volts.
<syntaxhighlight lang="c">
float getVoltage(int pin){
float getVoltage(int pin){
// AS the sketch does not call the analogReadResolution()
// each unit equal 3.3 / 1024 = 3.2 millivolts
return (analogRead(pin) * .0032);
return (analogRead(pin) * .0032);
}
}