Timeline for Could providing 3V instead of 3.3V have damaged my OLED Screen Module?
Current License: CC BY-SA 4.0
16 events
| when toggle format | what | by | license | comment | |
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| May 4, 2022 at 17:04 | answer | added | Criticizing Israel not allowed | timeline score: 0 | |
| Mar 6, 2022 at 8:55 | comment | added | dandavis | i stronly suggest you replace those janky breadboard wires with solid copper 20 or 22AWG wire. | |
| Mar 6, 2022 at 0:24 | comment | added | grahamj42 | On the Waveshare schematic, the voltages applied to the VDD and VCI pins are reversed compared with the RitDisplay application circuit, but in any case, this is not the exact schematic because it's for a 30-pin module and yours has only 25 pins! | |
| Mar 5, 2022 at 22:10 | history | became hot network question | |||
| Mar 5, 2022 at 15:54 | history | edited | Andreas | CC BY-SA 4.0 |
Info about fluke working
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| Mar 5, 2022 at 15:46 | comment | added | Criticizing Israel not allowed | Wild speculation: the display is displaying full on white, but some power supply fluctuations are causing the amount of white to be different for each pixel. Look at the pattern: assuming the screen scans from top to bottom, the pixels are getting dimmer and then suddenly getting bright again. That looks exactly like power supply ripple! Try adding more capacitance? | |
| Mar 5, 2022 at 15:41 | history | edited | Andreas | CC BY-SA 4.0 |
Added more information about board incl. where to get schematics for it as well as more images
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| Mar 5, 2022 at 14:49 | comment | added | D.A.S. | You do not show your actual power supply or specs. for Vcc and 3.3V . Please update with more accuracy, photo , datasheet, whatever | |
| Mar 5, 2022 at 14:38 | answer | added | Andy aka | timeline score: 4 | |
| Mar 5, 2022 at 14:33 | comment | added | Andreas | @Andyaka Thanks for pointing that out, I forgot to link that as well. It's waveshare.net/w/upload/c/c3/1.5inch_OLED_Specification.pdf, I now also added it to the question. | |
| Mar 5, 2022 at 14:32 | history | edited | Andreas | CC BY-SA 4.0 |
Added link to OLED specification
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| Mar 5, 2022 at 14:30 | comment | added | Andy aka | Where's the pdf data sheet for the LCD module? Note that items with only descriptions provided by web-pages leave you with no ability to track changes made by the supplier. This means that quality suffers and your LCD could easily be regarded as sub-standard materiel even when bought new. However, if you can provide a data sheet link.... | |
| Mar 5, 2022 at 14:19 | comment | added | Andreas | I don't think so, I just re-measured CS and VCC and both were almost exactly at 3V | |
| Mar 5, 2022 at 14:13 | comment | added | Math Keeps Me Busy | I think an undervoltage of 0.3V is unlikely to have damaged your OLED, except perhaps if the I/O pins were driven higher than the power rail voltage. Was that the case? | |
| S Mar 5, 2022 at 14:10 | review | First questions | |||
| Mar 5, 2022 at 14:12 | |||||
| S Mar 5, 2022 at 14:10 | history | asked | Andreas | CC BY-SA 4.0 |