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| OLED voltage levels... |
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| alank2:
--- Quote from: Fungus on October 03, 2015, 04:50:40 pm ---But when I wrote the original post the OP was saying: "I made it step from 0x00, to 0x8F, to 0xFF, but I only see two brightness steps and only see two distinct steps when monitoring current." --- End quote --- I must have done something wrong for that, not sure why. It is working now and definitely has the 256 steps. I guess the question is, does using the contrast setting OR adjust the iref resistor both accomplish roughly the same thing? |
| amyk:
--- Quote from: alank2 on October 03, 2015, 05:44:58 pm ---I guess the question is, does using the contrast setting OR adjust the iref resistor both accomplish roughly the same thing? --- End quote --- Iref is the "master contrast", it sets the maximum current. The contrast setting divides that into 256 steps. |
| reetpetite:
Hello alank2 and all other contributors, I bought the same displays and I am struggling to connect them properly. What do you mean by “uc” on pins 9, 10, and 11? Best regards |
| alank2:
By uc I mean microcontroller. Those pins need to go to a general purpose I/O to reset it and the other two to the i2c interface on the microcontroller. Good luck! |
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