Weird analog values

Community General Discussions
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1

hi ... euh i have a problem while i read analog inputs the micro controler ( arduino pro mini)

 

.... when i tried to read the analog input with a maxsonar (even tried with a simple resistor) when i use the serial monitor

I get data that resembles more drawing than digits

 

....anybody heard of something like that

 

thanks

2

Well…you could start by
Well…you could start by posting an example of what you get, the sketch, and the schematic.

3

I’m not really in to
I’m not really in to Arduino, but it sounds like a data type conversion “thing”

4

hello… here is the code i

hello… here is the code i oftenly use to check out my sensors

maxsonar sensor give me from 0 to 1023 readings

 

/*
Analog input, serial output

Reads an analog input pin, prints the results to the serial monitor.

The circuit:

* potentiometer connected to analog pin 0.
Center pin of the potentiometer goes to the analog pin.
side pins of the potentiometer go to +5V and ground

created over and over again
by Tom Igoe and everyone who’s ever used Arduino

*/

void setup() {
Serial.begin(9600);
}

void loop() {
// read the analog input into a variable:
int analogValue = analogRead(0);
// print the result:
Serial.println(analogValue);
// wait 10 milliseconds for the analog-to-digital converter
// to settle after the last reading:
delay(10);
}

 

it did’n’t work with arduino mini pro (5 volt version )

but when i hooked up everything to my 3.3 volts version (raw voltage input) a big cloud of smokes came up and everyting is curently working just fine i now get very good analog values

maxsonar sensor give me from 0 to 1023 in analog readings equivalent to 0.5 inche per digit so i divided the result by 2 so the result is inches

 

but i still don<t know what is up with my 5 volt version???

i am almost new to all this stuff (voltage regulators , arduino pro)

 

 

5

i wish i could post my

i wish i could post my serial monitor to show you the weird income i get from my arduino mini pro (5 volt)

i think it is the board (it’s brand new) that has a deffect because like i mentioned it worked fine on my 3.3volt version

6

This may be stupid, but does
This may be stupid, but does your baud on the serial monitor match the 9600 baud in the code? Normally if it isnt then you get weird "drawings" and not actual data.