[SOLVED] SD card not visible on Omega2+
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@Cristian-Bourceanu which Omega model are you using? Omega2/2+/S/S+/Pro
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@crispyoz Omega2+
I have designed my own PCB that I connect Omega2+ to. You can check that out here: https://github.com/cristi-bourceanu/Omega2P_FruitingChamber.git
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Update!
I have disconnected the Omega from the board that I have designed and powered it up separately and now the SD card is discoverable. Thus, something from my PCB is definitely interfering with the SD card. Does anyone have a clue what could be the cause of it?
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@Cristian-Bourceanu I found my issues with sdcard were due to bad or non-existent gnd on pin 7 of the sdcard slot. Might be worth checking.
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Solved!
My Omega was controlling some outputs with the help of some transistors. The resistors between Omega and the base of transistors were all 1kohm, which might have been too low for Omega capabilities of 4 mA per GPIO. I replaced all of them with 4k7 and it is now working.I don't even know why I have used such low resitances. I guess I was thinking that if I am not low on power, then why not.
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@Cristian-Bourceanu said in [SOLVED] SD card not visible on Omega2+:
I have designed my own PCB that I connect Omega2+ to. You can check that out here: https://github.com/cristi-bourceanu/Omega2P_FruitingChamber.git
Please share with us your Eagle schematic(s) in pdf (or png) format too.
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@György-Farkas
Sure! I have uploaded a PDF schematic on github under the PCB White Rabbit folder.
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@Cristian-Bourceanu Thanks. Where are those problematic transistors and 1 kOhm resistors?
I'd like to reproduce your "SD card not visible on Omega2+" issue.
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@György-Farkas I have updated the schematic with the resistors values I was using when the SD card was not visible.
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@Cristian-Bourceanu Thanks, I will try it.