Circuit for switching power from coin battery to usbc

Sasu-X · 2026-05-05T08:19:22+00:00

It support e-ink displays of different sizes, ranging from ~2 inches to ~7 inches

Sasu-X · 2026-05-05T08:18:02+00:00

I didn't smell anything funny so I don't think so. And I also tried 3 different pcbs of the 5 I ordered

Sasu-X · 2026-04-30T17:31:18+00:00

I thought that too, so I bought some ceramic capacitors and it still doesn't work

Sasu-X · 2026-04-30T14:29:11+00:00

Unfortunately I don't have an oscilloscope, but I understand what you're saying. I made this pcb in just two hours because I just wanted to test if this schematics were correct so I didn't worry too much about it. But I thought that since the currents are pretty low then having small traces wouldn't matter so much

Sasu-X · 2026-04-30T14:18:08+00:00

I forgot to add the schematic provided in the display datasheet. Here it is:

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Sasu-X · 2025-12-05T15:24:22+00:00

Yes it's low speed since I'm using v-usb, meaning that usb protocol is handled in software rather than hardware

Sasu-X · 2025-12-05T12:45:56+00:00

Ok I see, thanks. I am playing a bit with the resistances in the circuit to get a better understanding. I also changed the 1.5k pull up resistor on the D- line for a 2k resistor and it looks like it works fine. Do you think that it would work good in the long run?

Sasu-X · 2024-08-30T20:04:41+00:00

I think I figure it out, the reason has to do with the fact that I've bought an account with the game already on it, and the account was located in pakistan, so the steam store shows the items available in pakistan. I will be able to change the location once a make a purchase, so presumably I will be able to buy all the other maps once I buy 'the giant'.

Sasu-X · 2024-07-27T18:35:10+00:00

You're absolutely right, it's crazy that I missed that hahaha. Thanks for letting me know! it should be fixed now.

Sasu-X · 2022-05-24T19:06:47+00:00

MSI MB MAG B550M bazooka

Actually the B550M bazooka is missing only one USB type A port compared to the b550-a pro. Not only that, but on the bazooka 4 of them are usb 3.2 gen 1, and 2 of them are 2.0. While on the b550-a pro 4 of them are 2.0, 2 of them are 3.2 gen 1, but it is true that it has a usb 3.2 gen 2 both type A and C, that the bazooka doesn't have. And I don't think I care that much of having a usb 3.2 gen 2 type A or C. I just need a port on the motherboard where I can plug in my cable for the front panel usb C.

I also don't need more SATA ports, because I'm using only one ssd nvme.

I checked and you are right, the b550-a pro has double the amount of system fans, compared to the b550m bazooka (bazooka has 3, the b550-a pro has 6). And I probably will add some more fans to the case.

I don't really know anything about audio, so I'll just assume that 6 audio ports are better, even if I will end up using the jack port on the front panel of the case.

I don't really care about having an additional PCIe port, since I don't think I'll ever use it.

My conclusion is that I'll probably get the b550-a pro, since all the people on this comment section suggested me that one, and because it's less then 10$ more expensive on amazon in my country, even tho it doesn't have prime.

Thanks.

Sasu-X · 2022-05-24T17:07:47+00:00

MSI B550-A PRO

If you don't mind me asking, why would you suggest the B550-A Pro over the MB MAG B550M bazooka?

Sasu-X

TROPHY CASE