I have three analog sensors like voltage, temperature and pressure. I need to measure the voltage and temperature every 10 ms and I need to measure the pressure alone every 30 ms by using the timers in an Arduino.
How can I do this?
1 Answer
May this help as starting point! Not tested
void setup() {
Serial.begin(9600);
pinMode(A0, INPUT);
pinMode(A1, INPUT);
pinMode(A2, INPUT);
}
unsigned long previousMillis1;
unsigned long previousMillis2;
void loop() {
unsigned long currentMillis = millis();
if (currentMillis - previousMillis1 >= 10) {
int val1 = analogRead(A0);
int val2 = analogRead(A1);
Serial.print("Values from A0 and A1: ");
Serial.print(val1);
Serial.print(" ");
Serial.println(val2);
previousMillis1 = currentMillis;
}
if (currentMillis - previousMillis2 >= 30) {
int val3 = analogRead(A2);
Serial.print("Value from A2: ");
Serial.println(val3);
previousMillis2 = currentMillis;
}
}
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Thank you for your kind help Mr. Carlos Costa, but i am in need to use timer 1 or 2. without using millis i have to read the sensor dataPritha– Pritha2022-12-29 03:32:53 +00:00Commented Dec 29, 2022 at 3:32
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Presumably it is a school project. Are you allowed to use ready made libraries or do you have to use direct configuration of the timer's hardware registers? Which Arduino are you using? In any case, the datasheet for the microcontroller is a good (but heavy going) start.6v6gt– 6v6gt2022-12-29 08:43:56 +00:00Commented Dec 29, 2022 at 8:43
millis()ormicros()depending on the rest of your code. Please share that code and explain what it should do