pubudeux

I make computer go beep boop.

[pubudeux @pubudeux]

@eevblog I went into a battery size standard rabbit hole after your boom box video.

Cool to see that D cells were introduced in 1898! I only use them in my trash can (auto open), but according to stats they are nowhere near as popular as they used to be.

[pubudeux @pubudeux]

@DuffautLuka Hey yes you will want to use a buck converter most likely. ~24/48v is what switches will output according to the standard.

For most of the cheap (under $1) buck converters 48v might be out of range so I'd configure the chip to request 24v

[pubudeux @pubudeux]

Made a Gigabit PoE (Power-over-Ethernet) splitter today. It was a nice exercise in understanding how PoE works, and how data/power can run on the same cable using a Pulse Transformer.

[pubudeux @pubudeux]

@GabeMedina23 Hey Gabe. Which one are you trying? I am still using both of the above since making them without issues.

[Hackster.io @Hacksterio]

.@pubudeux gave an Amazon Basics kitchen scale a Wi-Fi upgrade using an ESP32: https://t.co/ebYI7LyCD3

[MikroTik @mikrotik_com]

🇺🇦 MikroTik’s humanitarian aid to Ukraine exceeds EUR 300 000

As the brave people of Ukraine continue to suffer, we pledge to keep doing our part. MikroTik has provided over 300 000 EUR worth of networking devices to the humanitarian efforts.

[pubudeux @pubudeux]

Moxy is a Homelab IoT "Platform" (for lack of a better term) that blurs the lines between hardware and software in the homelab: https://t.co/AbE3CVsL9l

It's been a really fun project, I hope it'll encourage more cross-pollination of hobby electronics and networking!

[pubudeux @pubudeux]

@SwapnilBMeshram Nope! All configuration is done with passive components as reflected in the datasheet.

[pubudeux @pubudeux]

I made a load sharing controller pcb using @ADI_News LTC4416 to power a server with 2 12v 802.3at power over ethernet splitters. Does a really good job distributing the load.

[pubudeux @pubudeux]

@jetdillo Hey, are you referring to the PoE pcb? PM me if you are in US I can mail you one!

[pubudeux @pubudeux]

@SwapnilBMeshram You probably want to use 2 MOSFETs in series like Figure 4 (in the above design I use 2 in series and 2 in parallel for each power source so 8 total MOSFETs).

E1 and E2 I connect to V1 and GND respectively with a high value resistor in case you want to use external ctrl later

[pubudeux @pubudeux]

@SwapnilBMeshram https://t.co/sGQ31ddOFZ in the datasheet page 10 (Figure 4-5).

[pubudeux @pubudeux]

@SwapnilBMeshram Hey Swapnil, what do you think?

[pubudeux @pubudeux]

@TheDokJ Here is an example: https://t.co/aXCOZu3kIM

Quality can be hit or miss so I usually order on Amazon, test, and return if I get a dud.

[pubudeux @pubudeux]

@TheDokJ If you just looking to power with PoE rather than make a DIY project, I would go with the units for sale on Amazon/ebay. Usually they go for about $10 each and come in variety of connectors/voltages.

[pubudeux @pubudeux]

@TheDokJ Depending on your PoE switch and voltage you're using, buck converter has to be within that range.

If it is an important piece of equipment I would make sure to use an isolated converter, like this:

https://t.co/IcV680KyRY

[pubudeux @pubudeux]

@alekz320 Hey, thanks! Feel free to reply in the thread, I'm happy to see if I can point ya in the right direction!

[OldTechAdverts @OldTechAdverts]

Not surprised but some amazing beginner projects in this thread.

[pubudeux @pubudeux]

@arturo182 Something garden or plant related - get a seedling started then easily transfer it.

[arturo182 is on Bluesky now @arturo182]

I have ten RP2040 Stamp boards to give away!

Show me a design using the Stamp and get a chance to have a module shipped to you!

You can find the footprints here: https://t.co/LroRIiWnlJ and there is a pre-alpha datasheet here:
https://t.co/KcZHA48tdi

RT for reach are welcome

[pubudeux @pubudeux]

Anyone ever used a 555 timer to limit power consumption on a battery-powered device?

I wrote up a little post about using the circuit to extend battery life of my solar powered weather station from 3-5 days to 3-5 weeks!

https://t.co/S67KKpaaVL

[pubudeux @pubudeux]

@mylim Do you have the link to the datasheet of the transformer? Then you could compare the pinout of them. My first guess is 16 pin would be without center tap pins.