i2c OLED display with 5 Analog inputs on Arduino Uno?

Projects General Guidance
21

Great, you have a library working.

That is the one from flashgamer.com ?
How many files of that zip file do you use ?

It seems to be a single API for many character displays.
Since it uses the Arduino 'Print' class, all the 'print' functions should work.

Serial.print("Temperature ");
Serial.print (steinhart);
Serial.println(" *C");

myOLED.setCursor(0,0);             // column, row.  0,0 is upper left
myOLED.print("Temperature ");
myOLED.print(steinhart):
myOLED.print(" *C");
22

Yes,

I used the flashgamer OledMarlin.zip and extracted that into my arduino Library. Then, I simply ran the Marlin arduino file which naturally created an additional 'Marlin' folder with an arduino filed named "Marlin." Then, I simply compiled that file, uploaded, and it produced the above picture.

It feels like I still have no idea what I'm doing :stuck_out_tongue: .

I added your myOLED code below "Serial.println(" *C"); and Arduino software gave the following error:

'myOLED' was not declared in this scope

I'm sure everyone is face palming because I did not define what "myOLED" was doing above, but did I mention I'm a total n00b trying to get this to work? :slight_smile:

23

The "myOLED" was just an example. That is the object for the OLED display.
I was assuming that you had a normal library and a sketch to start with.

I'm not sure if you can make this into a working project, you may have to buy a common display after all.
But then again, you have come this far, perhaps you might spent/waste more time to make it work.

Only a few files from that *.zip file are needed. I can't help to strip it down for the OLED only, since I don't have that OLED to test it. I think only 3 or 5 files are needed.

In the file oled_1311.h the object is created.

OLedI2C lcd;

That means that a object 'lcd' is created which is the OLedI2C class.
I think he called it 'lcd' to be compatible with the existing code, which was originally for a LCD display.
From then on, you can use 'lcd' to write to the OLED.

Try this:

Serial.print("Temperature ");
Serial.print (steinhart);
Serial.println(" *C");

lcd.setCursor(0,0);             // column, row.  0,0 is upper left
lcd.print("Temperature ");
lcd.print(steinhart):
lcd.print(" *C");
24

No oled display and no thermistor reading. :confused:

Can you please tell me what to do step by step? i.e. what does the full code look like?

25

I'm sorry, but I don't known. I don't how all the files in the *.zip file are related to each other.

Perhaps you can ask Index if it would be possible to only use the OLED code.