So I'm trying to get my Olimex-85 to react to voltage levels using the "A1" pin. It seems that the attiny is reading something but I do not know what. from what I have read 0 VDC should be 0 and 5 VDC should be represented with 1023.
the code compiles and if I put any voltage from 2-4 volts it reacts with a slow blink. If I disconnect the voltage it reacts with the faster blink ? so I know the chip is seeing something. The whole goal is to be able to set a value lets say 3 VDC (which is approx 610 ) and to make the LED blink according to the if-else statement .
I;m taking power off of the VCC running it through a poti to reduce the voltage to 3 VDC (Or whatever I want)
Any help would be greatly appreciated.
ALERT **************************
well I have answered my own post !!! THe problem was not software but hardware !!!! My pull down resistor was too low !!! I put a 10k on it and it seems to work fine !
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below is my code:
// the setup routine runs once when you press reset:
void setup() {
// initialize the digital pin as an output.
//pinMode(0, OUTPUT); //LED on Model B
pinMode(1, OUTPUT); //LED on Model A or Pro
}
// the loop routine runs over and over again forever:
void loop() {
int analogIn;
int analogInPin = A1;
pinMode(analogInPin, INPUT);
analogIn = analogRead(analogInPin);
// digitalWrite(0, HIGH); // turn the LED on (HIGH is the voltage level)
if(analogIn > 600)
{
digitalWrite(1, HIGH);
delay(1000); // wait for a second
//digitalWrite(0, LOW); // turn the LED off by making the voltage LOW
digitalWrite(1, LOW);
delay(1000);
}
else
{
digitalWrite(1, HIGH);
delay(300); // wait for a second
//digitalWrite(0, LOW); // turn the LED off by making the voltage LOW
digitalWrite(1, LOW);
delay(300);
}
// wait for a second
}
Thanks for sharing your experience! Glad you found the root of the problem.