I tried finding Hidden Gems on AliExpress AGAIN! (Part 9)
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Date: 2024-05-19
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Comments and reviews: 20
TinkerbatTech
Nice to see 6 thumbs up for once, and some cool widgets, as well. Sadly, I was defrauded on Aliexpress a while back, so no more. (Ordered a $30 lithium tester/balancer, receive a 5-10$ max poorly made power brick. Wrote in with pix. They said it was what I ordered. Snapshotted the listing web page and the invoice, resent. OK, we'll refund it if you return the mistake. So i pay $30ish to reship the $5 brick back, and they'll 'refund' the item and my shipping. Yeah. Not gonna happen. Screw me once, shame on you, twice, shame on me. No way they want the garbage brick back, just trying to waste more of my $. Sad, because I'd have purchased quite a few more things by now) (The BMS on my house backup was from there)
But I'll stick with ebuy and amuson, where they do back the customer a bit better. Maybe someday. Good vid, tho. I've been poking thru Temu instead, some pretty cool stuff there, and plenty of dreck. :)
Keep up the cool vids! Creative is good. Stu
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Nice to see 6 thumbs up for once, and some cool widgets, as well. Sadly, I was defrauded on Aliexpress a while back, so no more. (Ordered a $30 lithium tester/balancer, receive a 5-10$ max poorly made power brick. Wrote in with pix. They said it was what I ordered. Snapshotted the listing web page and the invoice, resent. OK, we'll refund it if you return the mistake. So i pay $30ish to reship the $5 brick back, and they'll 'refund' the item and my shipping. Yeah. Not gonna happen. Screw me once, shame on you, twice, shame on me. No way they want the garbage brick back, just trying to waste more of my $. Sad, because I'd have purchased quite a few more things by now) (The BMS on my house backup was from there)
But I'll stick with ebuy and amuson, where they do back the customer a bit better. Maybe someday. Good vid, tho. I've been poking thru Temu instead, some pretty cool stuff there, and plenty of dreck. :)
Keep up the cool vids! Creative is good. Stu
reply
realmacmods
Those USB-C adapters will also perform the ID function on Dell and HP laptops. Most Dells will not charge if you simply give them the 19V they are looking for. It does a handshake with 1-Wire EEPROM to define charger capabilities. Those adapters will emulate that EEPROM. This will tell the laptop how much power to attempt to pull, and if it pulls more than the USB-C charger can deliver, the charger will cycle, as you experienced. Ive used it on a few. A smaller Inspiron that takes a 45W charger works fantastic. A big Precision workstation that uses a 180W charger will not charge the battery while turned on, as you experienced. I actually mounted one inside the Inspiron so I can just plug and USB-C PD charger into it. Very useful for having to switch between a MacBook Pro and a Windows computer.
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Those USB-C adapters will also perform the ID function on Dell and HP laptops. Most Dells will not charge if you simply give them the 19V they are looking for. It does a handshake with 1-Wire EEPROM to define charger capabilities. Those adapters will emulate that EEPROM. This will tell the laptop how much power to attempt to pull, and if it pulls more than the USB-C charger can deliver, the charger will cycle, as you experienced. Ive used it on a few. A smaller Inspiron that takes a 45W charger works fantastic. A big Precision workstation that uses a 180W charger will not charge the battery while turned on, as you experienced. I actually mounted one inside the Inspiron so I can just plug and USB-C PD charger into it. Very useful for having to switch between a MacBook Pro and a Windows computer.
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Juniocrvlh
I'm civil engineer who has a bit of experience with these two laser tapes. Both are great to work indoors but the Bosch one is way better at outside work cause it has a stronger laser pointer that doesn't get faded easily by sunlight. Also it seems more heavy duty and some people say (not me) that the AAA batteries are more reliable in field work because if it runs out of juice you can just change the batteries and keep going. In my experience the rechargeable cheaper one lasts way more than you need in a full shift of work, it is cheaper to maintain, easier to carry around just in case and more environmentally friendly. That is, the expensive one only outcasts the cheaper one if you need to measure great distances at direct sunlight.
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I'm civil engineer who has a bit of experience with these two laser tapes. Both are great to work indoors but the Bosch one is way better at outside work cause it has a stronger laser pointer that doesn't get faded easily by sunlight. Also it seems more heavy duty and some people say (not me) that the AAA batteries are more reliable in field work because if it runs out of juice you can just change the batteries and keep going. In my experience the rechargeable cheaper one lasts way more than you need in a full shift of work, it is cheaper to maintain, easier to carry around just in case and more environmentally friendly. That is, the expensive one only outcasts the cheaper one if you need to measure great distances at direct sunlight.
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ergindemir7366
The pd adapter is very useful, i have the same exact model and been using it for over a year. You have to set the laptop to the power saving mode when charging if you have that chunky laptop, afterwards you can switch to balanced mode. The tip with power meter overheats when plugged in the converter, you should plug the other way. The first problem is those al cheapo chinese power supplies have short lifetime, they die within a year. Second issue is straight usb plugs can be easily broken when somebody hits while sitting in a cafe, you should buy the one with the 90 degree connector on the other end.
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The pd adapter is very useful, i have the same exact model and been using it for over a year. You have to set the laptop to the power saving mode when charging if you have that chunky laptop, afterwards you can switch to balanced mode. The tip with power meter overheats when plugged in the converter, you should plug the other way. The first problem is those al cheapo chinese power supplies have short lifetime, they die within a year. Second issue is straight usb plugs can be easily broken when somebody hits while sitting in a cafe, you should buy the one with the 90 degree connector on the other end.
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alphabuilders
Just a note about the ad. Vias under a bga are a bad idea. Particularly when sharing the via with bga pad solder point. The pad loses surface area adjacent to the bga and the surface area is already so low. Because of the already low surface area Bga soldering already has a high failure rate and does not hold up well to and flex or heat cycles the board may see during deployment. Having a via in same location will result in more lifted pads, worse still is the fact that traditional repair methods may not work either as there is now no trace running off to a remote via to patch into.
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Just a note about the ad. Vias under a bga are a bad idea. Particularly when sharing the via with bga pad solder point. The pad loses surface area adjacent to the bga and the surface area is already so low. Because of the already low surface area Bga soldering already has a high failure rate and does not hold up well to and flex or heat cycles the board may see during deployment. Having a via in same location will result in more lifted pads, worse still is the fact that traditional repair methods may not work either as there is now no trace running off to a remote via to patch into.
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MykolaInc
The problem of USB C laptop charger adapter is that most USB C power supplies trigger overload protection when total power riches maximum allowed. That is why you wasn't able to charge your powerful laptop, as the power to charge was about 65w and only 35w was left to power the laptop itself.
Anyway the adapter can be used to power fully charged laptops (in the case of extending battery life from power bank) as fully charged laptops will drain the energy from the powerbank first (as charged batteries does not require power) than after the power bank emptied will use the battery.
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The problem of USB C laptop charger adapter is that most USB C power supplies trigger overload protection when total power riches maximum allowed. That is why you wasn't able to charge your powerful laptop, as the power to charge was about 65w and only 35w was left to power the laptop itself.
Anyway the adapter can be used to power fully charged laptops (in the case of extending battery life from power bank) as fully charged laptops will drain the energy from the powerbank first (as charged batteries does not require power) than after the power bank emptied will use the battery.
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greatscott
Manufacturers often use a chip or circuit in laptop power supplies to ensure that only brand-specific chargers can be used is typically a Dallas Semiconductor ID chip, such as the DS2501. This chip is integrated into the charger's design and communicates with the laptop to authenticate the charger's identity. If the laptop does not recognize the charger, it may limit or prevent charging altogether. So beyond the adapters being brand specific for their sizes, they may also have a corresponding chip to allow it to work.
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Manufacturers often use a chip or circuit in laptop power supplies to ensure that only brand-specific chargers can be used is typically a Dallas Semiconductor ID chip, such as the DS2501. This chip is integrated into the charger's design and communicates with the laptop to authenticate the charger's identity. If the laptop does not recognize the charger, it may limit or prevent charging altogether. So beyond the adapters being brand specific for their sizes, they may also have a corresponding chip to allow it to work.
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Fuzuki785
Wireless HDMI tranceivers would have been great to have at my previous job: I worked in a public research lab working on VR simulations for emergency response during crises. We would run demonstrations to various actors to show off the prototype (as we didn't have the funding nor the people to make a full-fledged application) and our demo room setup was constrained by the length of HDMI cables we had to mirror the simulation output onto large screens
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Wireless HDMI tranceivers would have been great to have at my previous job: I worked in a public research lab working on VR simulations for emergency response during crises. We would run demonstrations to various actors to show off the prototype (as we didn't have the funding nor the people to make a full-fledged application) and our demo room setup was constrained by the length of HDMI cables we had to mirror the simulation output onto large screens
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potato8236
I especially like the modern chargers for the internal resistance display, perfect for checking new batteries for quality and monitor your batteries for cell degradation. I have cutoff points after which I won't use batteries anymore for my race drones since it would be nothing but a waste of resources, instead I can use them for anything that doesn't require 10kw of power draw and have them live a couple hundred more cycles instead of 2-3 more.
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I especially like the modern chargers for the internal resistance display, perfect for checking new batteries for quality and monitor your batteries for cell degradation. I have cutoff points after which I won't use batteries anymore for my race drones since it would be nothing but a waste of resources, instead I can use them for anything that doesn't require 10kw of power draw and have them live a couple hundred more cycles instead of 2-3 more.
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Ana_Jantra
About the laser tape measure, at the end, I would consider having a rechargeable battery to be a minus. A product like that is something that I would only use occasionally, and I would expect to keep it for 10 years or more. Unfortunately, with the built-in rechargeable battery, I wouldn't expect the battery to still be able to hold a charge after 10 years. So for my application, AAA batteries are far better
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About the laser tape measure, at the end, I would consider having a rechargeable battery to be a minus. A product like that is something that I would only use occasionally, and I would expect to keep it for 10 years or more. Unfortunately, with the built-in rechargeable battery, I wouldn't expect the battery to still be able to hold a charge after 10 years. So for my application, AAA batteries are far better
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harrkev
About the laser tape measure, at the end, I would consider having a rechargeable battery to be a minus. A product like that is something that I would only use occasionally, and I would expect to keep it for 10 years or more. Unfortunately, with the built-in rechargeable battery, I wouldn't expect the battery to still be able to hold a charge after 10 years. So for my application, AAA batteries are far better.
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About the laser tape measure, at the end, I would consider having a rechargeable battery to be a minus. A product like that is something that I would only use occasionally, and I would expect to keep it for 10 years or more. Unfortunately, with the built-in rechargeable battery, I wouldn't expect the battery to still be able to hold a charge after 10 years. So for my application, AAA batteries are far better.
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Alias_Anybody
Honestly, I'd love to see some more scientific tests for those USB-C to barrel plug dongles. Can they damage your device Like, my notebook can suck up 130W max, but also wants 20V, so could you let's say still charge it with a 100W USB C charger when not running on full power Or could you even recharge the battery while it's shut down with let's say a 35W brick
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Honestly, I'd love to see some more scientific tests for those USB-C to barrel plug dongles. Can they damage your device Like, my notebook can suck up 130W max, but also wants 20V, so could you let's say still charge it with a 100W USB C charger when not running on full power Or could you even recharge the battery while it's shut down with let's say a 35W brick
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Eucadiz
I do love these when theres just hidden gems. As it brings more ideas to current projects i. e. BLDC cooling fan for 3D printer. Of course the bad products should be called out as well. I suggest you next time to also include some electronics tools for the next episode. Maybe building a basics electronics lab for cheap could be a branch from these series.
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I do love these when theres just hidden gems. As it brings more ideas to current projects i. e. BLDC cooling fan for 3D printer. Of course the bad products should be called out as well. I suggest you next time to also include some electronics tools for the next episode. Maybe building a basics electronics lab for cheap could be a branch from these series.
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AndersEinarHilden
I feel like giving the PD3. 1 powerbank PCB negatives because it required a new trigger board and cable was wrong. It worked great with the PD3. 0 compatible trigger and cabels that you had. That you required newer trigger boards and cables was a limitation of your tools, not the board, and will be true for everyting supporting PD3. 1 per spec.
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I feel like giving the PD3. 1 powerbank PCB negatives because it required a new trigger board and cable was wrong. It worked great with the PD3. 0 compatible trigger and cabels that you had. That you required newer trigger boards and cables was a limitation of your tools, not the board, and will be true for everyting supporting PD3. 1 per spec.
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kwinzman
4. 5V voltage drop at 5A 28V nominal is just fine Is that still within USB spec I don't think so!
I would have loved if you could have provided more context here why it failed the 28V test. Are your battery cells the limiting factor The cables Or the tested board itself Was it overheating Can you change it so it advertises 28V3A max instead of 5A
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4. 5V voltage drop at 5A 28V nominal is just fine Is that still within USB spec I don't think so!
I would have loved if you could have provided more context here why it failed the 28V test. Are your battery cells the limiting factor The cables Or the tested board itself Was it overheating Can you change it so it advertises 28V3A max instead of 5A
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technodaz
I use a similar wireless hdmi dongle for my projector, I like to bring it strange places and watch movies outside, quite handy in the summer. I have a 500wh pack from recycled laptop 18650's and it powers the projector and the other pack does the phone and bt speaker, but even with just air gap I get at most 30-35m before it starts glitching.
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I use a similar wireless hdmi dongle for my projector, I like to bring it strange places and watch movies outside, quite handy in the summer. I have a 500wh pack from recycled laptop 18650's and it powers the projector and the other pack does the phone and bt speaker, but even with just air gap I get at most 30-35m before it starts glitching.
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eformance
Wireless HDMI is mostly used today for content production. There are expensive solutions that are high quality for being able to locate a camera remotely from the ingest station, or have remote monitoring of the camera output. Many high end camera monitors have a remote viewing capability for secondary displays or phones/tablets.
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Wireless HDMI is mostly used today for content production. There are expensive solutions that are high quality for being able to locate a camera remotely from the ingest station, or have remote monitoring of the camera output. Many high end camera monitors have a remote viewing capability for secondary displays or phones/tablets.
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ch3mn3y
I can agree that netbook adapters from C are amazing. Use one for my Dells and one for my HP
What I can add about it:
- always take two, my first one broke after 2 months of use, thankfully (almost) had 2nd one (but not with me.
- cost is not 4, 5-5, but more like 2, 5$, at least thats how much I pay for them.
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I can agree that netbook adapters from C are amazing. Use one for my Dells and one for my HP
What I can add about it:
- always take two, my first one broke after 2 months of use, thankfully (almost) had 2nd one (but not with me.
- cost is not 4, 5-5, but more like 2, 5$, at least thats how much I pay for them.
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TheHellis
The wireless HDMI is something I have been looking for a long time.
Wanted to find something that was tested and preferably by someone I trust.
Thank you!
That will work fine for our old projector that has been in a box for years because I don't want to or can't route cables to it in our living room.
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The wireless HDMI is something I have been looking for a long time.
Wanted to find something that was tested and preferably by someone I trust.
Thank you!
That will work fine for our old projector that has been in a box for years because I don't want to or can't route cables to it in our living room.
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DigitalIP
How useful would that motor be for say like, a fume/exhaust hood for soldering etc instead of using a fan and duct For the USB C barrel jack connector, you could use that to power other things with a barrel jack, not just to charge laptops, but a PD trigger board might be needed to activate it.
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How useful would that motor be for say like, a fume/exhaust hood for soldering etc instead of using a fan and duct For the USB C barrel jack connector, you could use that to power other things with a barrel jack, not just to charge laptops, but a PD trigger board might be needed to activate it.
reply
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