Timeline for SSD1306 OLED Display Issue
Current License: CC BY-SA 4.0
23 events
| when toggle format | what | by | license | comment | |
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| Nov 11, 2024 at 22:01 | vote | accept | eikood | ||
| Nov 11, 2024 at 6:55 | comment | added | the busybee | Please post images with more contrast the next time, optimally black-on-white. Presumably only few of us are working in the dark and in dark mode. ;-) | |
| Nov 10, 2024 at 17:24 | answer | added | eikood | timeline score: 1 | |
| Nov 10, 2024 at 17:24 | history | edited | eikood | CC BY-SA 4.0 |
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| Nov 10, 2024 at 17:23 | comment | added | Justme | @eikood You should post that as answer. Since the I2C was working, clearly the problem must be either in hardware like your missing power supply do it does not light up, or some custom init command missing over I2C. | |
| Nov 10, 2024 at 17:20 | comment | added | eikood | I edited my post and posted the solution! Thanks everyone | |
| Nov 10, 2024 at 17:17 | history | edited | eikood | CC BY-SA 4.0 |
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| Nov 9, 2024 at 22:21 | comment | added | user317139 | Many things could go wrong, hard, soft, incompatibilities or even the display faulty... First try to manually reset it (shorting C14?). Check SCL SDA with a scope (signal quality) and also try to swap them. Issue a very elementary command that you could interpret undoubtedly with the scope. Firmware device and library mismatches are so common on this market… Good luck. | |
| Nov 9, 2024 at 20:34 | history | edited | eikood | CC BY-SA 4.0 |
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| Nov 9, 2024 at 20:33 | history | edited | eikood | CC BY-SA 4.0 |
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| Nov 9, 2024 at 19:47 | comment | added | eikood | I soldered the display directly to the board. I verified the voltage on c14 which is 3.274v. R11 is 4.7 kOhm, not as in the schematic 1k | |
| Nov 9, 2024 at 19:45 | history | edited | Transistor | CC BY-SA 4.0 |
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| Nov 9, 2024 at 19:44 | comment | added | Spehro 'speff' Pefhany | I don't see anything obviously wrong. Have you verified that the display /RESET pin is high? Are you using a socket for the display FPC? | |
| Nov 9, 2024 at 19:29 | comment | added | eikood | I embedded the image of the schematic, but a moderator (electronics.stackexchange.com/users/64158/marcus-m%c3%bcller) removed it | |
| Nov 9, 2024 at 19:25 | comment | added | Andy aka | AliExpress are not to be trusted when it comes to many electronic products. Neither are eBay, Amazon and several others. If the schematic links die (as they do over time), your question becomes invalid. You should embed the info into your question. | |
| Nov 9, 2024 at 19:24 | history | edited | eikood | CC BY-SA 4.0 |
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| Nov 9, 2024 at 19:21 | history | edited | Marcus Müller | CC BY-SA 4.0 |
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| Nov 9, 2024 at 19:17 | comment | added | eikood | Do you mean this blackbox? github.com/adafruit/Adafruit_SSD1306 I tried a I2C Scanner: pastebin.com/kMU9M5m7 ```````````````````````````````````````````````````````````````````` I2C device found at address 0x3C ! I2C device found at address 0x76 ! I2C scan complete. ````````````````````````````````````````````````````````````` Still nothing on the display. But the scanner found the adress. So I suspect there must be a hardware related issue, which is not obvious to me tho | |
| Nov 9, 2024 at 18:59 | comment | added | Justme | The library code is a black box provided by Arduino and you are using a black box which we can't see if it does things correctly or not. We also don't know if it is supposed to work on your specific display. Without adding more info and debugging where the problem might be, we can't say what the problem might be. | |
| Nov 9, 2024 at 18:55 | history | edited | eikood | CC BY-SA 4.0 |
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| Nov 9, 2024 at 18:48 | history | edited | eikood | CC BY-SA 4.0 |
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| S Nov 9, 2024 at 18:47 | review | First questions | |||
| Nov 9, 2024 at 20:06 | |||||
| S Nov 9, 2024 at 18:47 | history | asked | eikood | CC BY-SA 4.0 |