OLED Display Makes The Code Stuck

Using Arduino Displays
#1

Hey! I am using 128x64 oled display with Adafruit_SSD1306 library.

Whenever i try to use this algorithm if I write display.print("something") , my code get stuck.

Without this algorithm display work perfectly.

I think this problem might be about sketch memory or oled buffer... My sketch memory is %99 :confused: .

int sample=40; int maxsample=50; float alt[51]; float tim[51];

LOOP FUNCTION

float tempo=millis();

for(int i = 1 ; i <= maxsample ; i++){ alt[(i-1)]=alt*;* tim[(i-1)]=tim*;* }; alt[maxsample]=altitude; //altitude is variable from pressure sensor (pressure sensor works fine)! tim[maxsample]=tempo; float stime=tim[maxsample-sample]; float N1=0; float N2=0; float N3=0; float D1=0; float D2=0; for(int i = (maxsample-sample) ; i < maxsample ; i++){ N1+=(tim_-stime)alt; N2+=(tim-stime); N3+=(alt); D1+=(tim-stime)(tim*-stime); D2+=(tim-stime); }; *float vario=0; // reset old value _vario=1000*((sample*N1)-N2*N3)/(sample*D1 - D2*D2); //set new value

#2

You are probably running out of memory. The OLED library needs to set up a buffer for the whole screen which it then writes to the display when it's updated.

#3

Thank You so much I couldn't have thought that. Now I have reduced the ram usage and it works like a charm.

Thanks Again!! :)

#4

Hello My OLED is also freezing, working fine for a while then locking up fro no apparent reason. My sketch only uses 52% programme memory and 14% of Dynamic memory May I ask. what steps did you take to reduce the RAM? Should I also be looking at hardware issues?

#5

My OLED is also freezing, working fine for a while then locking up fro no apparent reason.

You allocating anything in memory? Sounds like pointer issues to me.

-jim lee