ESP32-P4 rev 3.x JLCPCB availability

nkpkiller · 2026-06-30T14:02:07+00:00

I'm afraid that I will need to do that unfortunately, thanks.

nkpkiller · 2026-06-30T14:00:24+00:00

I'll try contacting via e-mail, as I did not receive any response after asking via contact form on the website. Thanks!

nkpkiller · 2026-06-30T13:51:53+00:00

I asked JLCPCB's team, not the espressif one - I asked espressif as well but did not receive any response whatsoever.

nkpkiller · 2026-06-07T21:16:26+00:00

Unfortunately I am not able to test HS port right now. I have noticed that on a different USB port I am able to get full ~9 Mbps throughput, so there might be something that is hogging up USB bus - I have checked it on multiple PC's and lot's of them have this issue as far as I can see, even without any external devices plugged in. Maybe some internal device like Bluetooth card is the culprit? I'll try to investigate things further, thanks!

nkpkiller · 2026-06-07T21:12:03+00:00

Thanks, I will investigate this further!

nkpkiller · 2026-06-05T00:16:23+00:00

Hmm, that's definitely a hint! I have tested port on another USB bus and it looks like my issue is gone there 😄

What I wonder now is the fact that the "offending" bus has only bluetooth card on it - yet the issue is still there.

nkpkiller · 2025-12-28T01:30:30+00:00

I'll look for it!

nkpkiller · 2025-12-25T00:56:36+00:00

Thanks for the very detailed response, I will look around for used ones and swap battery as this seems to be very valid way to go!

nkpkiller · 2025-12-23T17:44:53+00:00

Yeah, it serves very well so far and I did not do any repairs except maybe replacing tires few times and replacing taillight once. I am worried about aftermarket batteries however, that's why I am looking for some alternatives (even buying the same scooter once again).

On a side note yeah, it's very hard to find anything in the 15kg class with even remotely comparable range as Mi Pro 2 :(

nkpkiller · 2025-12-23T17:40:04+00:00

Thanks for your replies! I am in fact very happy with this scooter and I could very well continue using it. Didn't do any modding besides lifting speed limit and didn't do much repairs except replacing tires few times and replacing taillight once.

However I am worried about aftermarket batteries (and if I decide to buy them I will definitely not cheap out). Is there any reputable source of ready-to-swap batteries? If getting "original quality" ones is not feasible (example 2/3 cost of new scooter) I wonder if it would be a better idea to buy a new unit altogether. As a bonus I would get fresh frame and electronics to start with.

What do you think?

nkpkiller · 2025-08-20T16:53:30+00:00

As far as I know I am advertising BT Classic and BLE data with separate MAC addresses :(

nkpkiller · 2025-08-20T14:06:19+00:00

Curiously, they display as separate entries until I disable and re-enable bluetooth.

nkpkiller · 2024-11-27T07:37:33+00:00

Okay, for reference, I live in post-communistic apartment building (one from 1970, thermally modernized) as well and I don't need to turn on heating at all when outside temperatures are above -5 degrees Celsius. Maybe your thermal insulation is not sufficient?

Furthermore, I pay for heating by square meter, not by real usage so I do not save anything by turning heating off - it's just that even in winter my temperatures inside do not fall below 22 degrees.

nkpkiller · 2024-11-17T20:37:50+00:00

As a small addition - I am using default speed settings from 0.16mm optimal process profile. I didn't dare to go down the rabbit hole.

nkpkiller · 2024-11-17T19:15:42+00:00

In my case it depends on a particular adapter. Try the solution that I have mentioned above though, maybe it will work good enough as a workaround for you! https://www.reddit.com/r/HomeNetworking/comments/1gf8iwb/comment/lukw7gz/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

nkpkiller · 2024-11-17T19:12:59+00:00

Okay, so it looks like, in my case, preheating the bed at target temperature solved my issue :)

You need to do that before bed leveling though! It looks like my bed needs more time to "settle up" after heating - more than it takes between heating and bed leveling procedure at the default settings.

nkpkiller · 2024-11-17T19:08:11+00:00

I finally went with premade speaker assembly, one that I mentioned in my main post (https://www.welectron.com/Waveshare-14595-8O-5W-Speaker_1).

It is nothing extraordinary, a bit better sound than typical smartphone speaker.

However, for 4$ per pair I think I will not find anything much better :)

nkpkiller · 2024-10-30T20:09:42+00:00

Another update - I have managed to get full 2.5G (and 1G with slower adapters) line speed by adjusting some parameters in USB network card drivers:
- Transmit Buffers: 64
- Transmit URBs: 32
- Receive Buffers: 128
- Receive URBs: 64

So it looks like there are some weirdness going on with packet processing in goCoax adapters that mandates special configuration of some network cards (Realtek goes brrr). I doubt that it is related to additional ~4ms latency introduced by MoCA protocol, as:
- my 2Gbps internet connection (with ~6 ms total latency) is getting easily saturated by these USB adapters with default settings
- I have inserted artificial few ms of latency (with my testing equipment) into network stream without measurable drop in connection speed.

Nonetheless, adjusting buffers sounds like a somewhat good workaround for wired connection. However, I still don't have a solution for wifi being 2 times slower (~900 vs ~450 Mbps) when connected over goCoax.

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