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Kmart lied to me, so I hacked their lamp [video]

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Re: Kmart lied to me, so I hacked their lamp [video]

#11
post #9

It's 2025. For fucks sake, getting _basic_ USB-C compliance for power is a matter of two fucking SMD resistors. And yet, people are _still_ messing that up.

It seems "vibe electronics" have arrived way earlier than "vibe coding" did.

Yeah. I mean, back in 2019 when Raspberry Pi ran into that very same issue [1], it was excusable, but it's six years later and people still have zero idea what the fuck they are doing?

[1] https://hackaday.com/2019/07/16/exploring-the-raspberry-pi-4...

Re: Kmart lied to me, so I hacked their lamp [video]

#12
I’m rather surprised anyone would want a battery operated lamp at their bedside anyways, unless it was a backup battery for when the power goes out. There’s no battery indicator to know when it is low so you would just have to guess or pay attention when it looks like it needs to be charged. Most people would probably just plug it in and leave it plugged in all the time.

Re: Kmart lied to me, so I hacked their lamp [video]

#13
post #2

https://www.thestockpot.net/videos/whykmart for those who do not want to watch a video like me. Isn't the use of USB-C promotion without at minimum basic USB compatability disallowed? I have a few devices which have a USB-A to barrel plug, but they do not advertise anything and afaik that is perfectly fine. And they also only work with a normal USB charger, not the fancy ones.

> The ESP32 has its own charging circuit.

What?

_reads on_

Turns out, he uses a specific ESP32 breakout board (AFAIK a Lolin one) that includes a charging circuit for a 1S battery. It's a really nice board, but to say that ESP32 includes a charging circuit is wrong, for anyone else curious.

Re: Kmart lied to me, so I hacked their lamp [video]

#14

It's 2025. For fucks sake, getting _basic_ USB-C compliance for power is a matter of two fucking SMD resistors. And yet, people are _still_ messing that up.

I wonder if a lawsuit could force them to recall all their lamps and fix the USB port. Then this won't happen again.

At least here in Europe this would actually need to be a USB port which can be charged with any charger and cable.

Re: Kmart lied to me, so I hacked their lamp [video]

#15
post #2

https://www.thestockpot.net/videos/whykmart for those who do not want to watch a video like me. Isn't the use of USB-C promotion without at minimum basic USB compatability disallowed? I have a few devices which have a USB-A to barrel plug, but they do not advertise anything and afaik that is perfectly fine. And they also only work with a normal USB charger, not the fancy ones.

> for those who do not want to watch a video like me.

Thanks! It made me read his other articles. I liked this one more: https://www.thestockpot.net/videos/3dprinteddownpipe. A 3D printed downpipe. Because that's what the solution he was able to do.

I don't entirely agree with the paint colour. Which is really nitpicking, or said in another way: I'm quite impressed!

Re: Kmart lied to me, so I hacked their lamp [video]

#16
I also have such a lamp. Supposedly it's USB-C connection, but it only works when connecting with USB-A to USB-C cable.

My guess is it's due to the requirement to comply with EU law about USB-C. But proper USB-C requires active circuitry but manufacturers don't add it to save a few cents.

Re: Kmart lied to me, so I hacked their lamp [video]

#17
post #16

I also have such a lamp. Supposedly it's USB-C connection, but it only works when connecting with USB-A to USB-C cable. My guess is it's due to the requirement to comply with EU law about USB-C. But proper USB-C requires active circuitry but manufacturers don't add it to save a few cents.

This is usually a single tiny resistor in the right place that is missing, which is not a few cents in a mass production, it is just a fraction of a cent. But someone needs to know to actually put it there.

Re: Kmart lied to me, so I hacked their lamp [video]

#18
post #2

https://www.thestockpot.net/videos/whykmart for those who do not want to watch a video like me. Isn't the use of USB-C promotion without at minimum basic USB compatability disallowed? I have a few devices which have a USB-A to barrel plug, but they do not advertise anything and afaik that is perfectly fine. And they also only work with a normal USB charger, not the fancy ones.

[flagged]

Downvoted because he's in Australia and there was no reason for you to bring your personal political axe grinding into a tech discussion.

Re: Kmart lied to me, so I hacked their lamp [video]

#19
post #2

https://www.thestockpot.net/videos/whykmart for those who do not want to watch a video like me. Isn't the use of USB-C promotion without at minimum basic USB compatability disallowed? I have a few devices which have a USB-A to barrel plug, but they do not advertise anything and afaik that is perfectly fine. And they also only work with a normal USB charger, not the fancy ones.

Sure but the sheer quantity of goods being imported makes it impossible to verify compliance proactively. You need someone like him to discover the violation and speak out about it (which he has beautifully). Someone could contact Australia's customs service, the USB Forum, or the electronics certifying agencies to get the device recalled and blocked but it likely wouldn't stop another similar item from being imported under a different name and design.

Re: Kmart lied to me, so I hacked their lamp [video]

#20
post #16

I also have such a lamp. Supposedly it's USB-C connection, but it only works when connecting with USB-A to USB-C cable. My guess is it's due to the requirement to comply with EU law about USB-C. But proper USB-C requires active circuitry but manufacturers don't add it to save a few cents.

I doubt it: that only applies to equipment with radio capabilities.[1] Also, Kmart is regional to north america, it doesn’t exist in the EU.

[1] https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A...

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