While it is obvious that the official PoE and PoE+ HATs can not work with the Pi 400, and that the Pi 400, while having a PoE IC on the PCB, isn’t actually PoE capable, nevertheless, there may be a (somewhat) elegant solution in the form of the Pi-Supply PoE Switch Hat…
TL;DR – Pi 400 can not work with any PoE HAT.
Continue reading Pi 400 and PoE
I had the chance to get a Creative woofer SBS 2.1 370 for 40 baht, but it was missing a power supply: 11.5V 1.6A. Not a common supply, and I wondered if a 12V 2A would suffice, or whether the higher voltage would damage the unit
Continue reading Creative Woofer SBS 2.1 370 power supply
I have a couple of faulty Apple iPhone chargers, one of which is an original, the other is a clone… Let’s open them up and see what’s inside and compare them…
Continue reading Pulling apart an Apple iPhone charger
It’s one of those horrifically dangerous 2.5×2.5×2.5 cm mini-cube singe port 1 A USB chargers. There were scorch marks on the base of the case. The circuit was very simple, a simplified SMPS on two small PCBs… which held into the cube casing with white silicone/glue – scratch that away and it is easy to extract the pair of PCBs
Continue reading Burnt out USB charger
Whilst looking into the XTAR battery chargers, I came across the XTAR EU4, which offers QC3.0, 2 x USB 2.4A and USB C (PD) ports… and although the QC and PD capability is a bit limited, it’s not by much (i.e. QC 3.0 does not have 20V capability, and PD current is limited to 20V 2.25A (45W))…
Continue reading High power USB charging station
XTAR… Due to my unfortunate experience with the awful charging functionality of a Wismec RX200 vaper, I was looking into getting a upgrade to my agéd yet venerable XTAR VC2 (which was able to resurrect a dead LiPo, see Reviving a dead 18650 LiPo) and I was perusing the XTAR Official Store on AliExpress. Now, while the newer products are all really rather good, there seem to be some inconsistencies between the XTAR product range and the naming.
Continue reading Is the XTAR product department confused?
I bought a Zhoaxin TXN-1502D (15 V 2 A) for 250 baht in Talat Din Daeng. It is a similar unit to the Baku (or Yaxun) PS-1502DD, with a linear supply, rather than SMPS. Somewhat typically for something purchased from the market, it has a number of issues…
Continue reading Zhoaxin TXN-1502D
I found this in Talat Din Daeng, for 450 baht, but it is missing most of the cables…
and the cables aren’t cheap ($70 for a complete set, or ~£15-20 each).
Continue reading Tagan TG500-U38
A 4-in-1 bench equipment… a very very heavy jack of all trades and master of none?
Continue reading Metex MS-9150