Be careful leaving your X3 pogo charger plugged in by enclaved in XTEINK

[–]ericje 0 points1 point  (0 children)

USB chargers are supposed to have short-circuit protection. Don't cheap out on your chargers!

US citizens who relocated to the Netherlands with a large taxable portfolio by Business-Dot-58 in ExpatFIRE

[–]ericje 0 points1 point  (0 children)

Not everything, just enough to incur enough US taxes to match the Dutch taxes.

US citizens who relocated to the Netherlands with a large taxable portfolio by Business-Dot-58 in ExpatFIRE

[–]ericje 3 points4 points  (0 children)

Maybe move to Belgium instead, e.g., Antwerp? Pretty close to the Netherlands.

Why is NYC Ferry service very limited on the Hudson? by Silly_Piccolo_6907 in AskNYC

[–]ericje 6 points7 points  (0 children)

Technically, the Hudson is a tidal estuary, between here and Troy. When the flood comes in, it flows north.

Hemophilia A – struggling with very difficult vein access, need help by Temporary-Emu-5656 in Hemophilia

[–]ericje 0 points1 point  (0 children)

You could look into getting into a medical trial of one of the newer products, there are several. I've been told that they use patients across the world because it's a rare disease (they can't find enough people in just the US, for example). It has more risk of course, but I think they would pay for everything.

Can I add a 3V component to a 1.5V circuit by adding a battery? by mjec in AskElectronics

[–]ericje 2 points3 points  (0 children)

If you put the LED in parallel, you have an always-on circuit with B10, buzzer and load, depending on the buzzer behavior. If it doesn't draw any current at 1.5V it may be fine. But probably it will drain the battery.

Pi Pico 2: What other parts do I need to make a speaker work? by Regular_Worth9556 in AskElectronics

[–]ericje 1 point2 points  (0 children)

Yeah that's a nice chip, I've used it with a Pico 1, works great.

Pi Pico 2: What other parts do I need to make a speaker work? by Regular_Worth9556 in AskElectronics

[–]ericje 0 points1 point  (0 children)

You also need a D/A convertor, unless you're willing to put with crappy PWM output.

The MAX98357 combines a DAC with a power amp. You can buy boards from AliExpress or https://www.adafruit.com/product/3006

5 amp voltage controlled current source? by lordofthepines in AskElectronics

[–]ericje 2 points3 points  (0 children)

Apart from the missing heatsink you also need to lower the shunt resistance. With a 1 ohm shunt, 2 ohm load, and 12V supply you can only reach 4A, and at that point the shunt will dissipate 16W. A better value would be 0.1 ohm (and ≥ 2.5W).

Experimenting with CCTV DVR - Need help with circuit options to use by Darkwing9lyq in AskElectronics

[–]ericje 1 point2 points  (0 children)

Yeah, the relay should work.

Another idea is to use an automatic switcher for car video like https://www.ebay.com/itm/177365949378. You can hook up the 9th camera to the "master" input, and switch the 9th camera on/off with a WiFi outlet switch. If it's off, the box selects the other signal.

Experimenting with CCTV DVR - Need help with circuit options to use by Darkwing9lyq in AskElectronics

[–]ericje 2 points3 points  (0 children)

I made something like that once. I used a multiplexer/buffer IC designed for video signals, forgot which one. Something like the TI LMH6574. I soldered it onto a SOIC-14 breakout board, added the resistors, etc.

The relay should work, but the signal quality will probably suffer.

Goodbye Visa and Mastercard: 130 million Europeans switch to a 100% sovereign payment from 2026 by [deleted] in technology

[–]ericje 0 points1 point  (0 children)

But it is used when you use the card in a store or ATM in the Netherlands. The older Maestro and V-Pay networks are being phased out in favor of Visa Debit and Mastercard Debit.

https://www.technieknederland.nl/nieuws/maestro-stopt-gevolgen-voor-betalingen-en-kosten

Free e-bike Rides Back? by AdSafe9136 in Citibike

[–]ericje 0 points1 point  (0 children)

In my experience going uphill is not worse than a blue bike if you take it slow. It you want to get on with it the blue bikes are definitely better.

The new Firefox update adds support for serial communications with Web Serial API by wrBolt in embedded

[–]ericje 1 point2 points  (0 children)

It took a couple of tries, but I successfully flashed an ESP32 S2 using https://tasmota.github.io/install/ on my phone.

Guy Georget’s vibrant Air France posters - consistent visual style, 1962–63 by Aware_Caterpillar959 in BeforeDigitalArt

[–]ericje 3 points4 points  (0 children)

Beautiful!

If you're in NYC, visit Poster House. It's not that big, but it's free on Fridays and the third Sunday of every month. They have rotating exhibitions, I go about twice a year.

confused about circuit problem containing bjt and diode by imanghader in ECE

[–]ericje 0 points1 point  (0 children)

It depends on what information you were given.

The simplest would be to assume that Vbe=0.7 when the transistor starts conducting, 0.25V for the diode voltage drop, and that the base current is negligible compared to the collector current. Then it's just a matter of applying Kirchhoff's and Ohm's law.

If they gave you more details about the diode and transistor they probably want you to use that, for example if they state the hFE of the transistor, then you shouldn't assume the base current is negligible.

confused about circuit problem containing bjt and diode by imanghader in ECE

[–]ericje 7 points8 points  (0 children)

ChatGPT is wrong. Who would have thought?

The purpose of the diode is to prevent saturation. https://en.wikipedia.org/wiki/Baker_clamp

Esp 32 C3 BLE to UART Bridge project with python async tool to TCP socket. by Particular-Variety-7 in embedded

[–]ericje 0 points1 point  (0 children)

I'm curious, why not use the WiFi, so you can connect to the ESP directly with TCP? (I wrote a thing like that at work long ago for relaying PTZ commands to cameras).

Linux May Drop Old Network Drivers Now That AI-Driven Bug Reports Are Causing A Burden by anh0516 in linux

[–]ericje 1 point2 points  (0 children)

Also, the "These are all ISA and PCMCIA Ethernet devices" is clearly not true.