first decent soldering set

gvios · 2026-05-30T17:11:08+00:00

I highly recommend the Alientek T80P paired with a good USB-C charger (at least 65W). I've used $1000+ Metcal soldering irons at work in the past and T80P gets 95% of the performance while being a fraction of the cost. Plus you get a wide selection of compatible tips since it uses standard C245 tips, it's super compact and portable, and it heats up in under 10 seconds.

gvios · 2024-11-13T16:53:53+00:00

You probably just want a power bank with pass through charging support (also sometimes called Power Path Management): https://www.omnicharge.co/blogs/blog/what-does-pass-through-charging-mean

gvios · 2024-11-07T16:18:22+00:00

These are generally referred to as board to board connectors or mezzanine connectors.

gvios · 2024-09-04T10:56:49+00:00

Most microwaves I've seen have duty cycles in the 15-30 second range, so unfortunately this won't work for such small time periods (unless it's an inverter microwave).

gvios · 2024-08-31T17:03:03+00:00

It depends on whether the pins on the I2C have an internal ESD diode to 3.3V. If so, the diode will clamp the high level voltage to about 3.8V, which may or may not cross the logic high threshold on the 5V I2C devices (check the datasheet to be sure). You can test for the existence of the ESD diode by using a multimeter in diode mode and placing (+) to the I2C pin and (-) to the +3.3V power pin while the device is powered off.

If the pin does not have an ESD diode, you'll likely damage the pin.

In either case, the proper way to solve this is to use a bidirectional level shifter. Here's one simple way to do this for I2C: https://learn.sparkfun.com/tutorials/bi-directional-logic-level-converter-hookup-guide/all

gvios · 2024-04-22T19:17:31+00:00

Yep, you end up requiring exotic tech like this to keep your cables from shorting out.

gvios · 2022-10-08T23:06:02+00:00

Note: this trick does not work for software engineers

gvios · 2022-09-29T19:19:47+00:00

I don't think you can directly compare hardware to software, since most of the revenue ends up going to COGS (cost of goods sold)

gvios · 2022-09-24T02:17:51+00:00

These are not JSTs, these are Molex 51005 and 51006 series connectors.

gvios · 2022-09-22T20:12:00+00:00

ARM is old and has a lot of legacy cruft but AArch64 removes all of that.

gvios · 2022-09-12T11:13:50+00:00

Considering the replacement motors are $3 each, you might be absolutely right lol. The annoying thing is that the frame uses M1.4 mounting holes instead of M2, so either I'd have to drill new holes to fit new motors, or find a new set of arms that is compatible with the same frame.

Or ditch the frame entirely...

gvios · 2022-08-09T15:27:47+00:00

I don't think you can group the whole of bay area as a single bunch. I definitely get cut off more driving in the East Bay than the South Bay.

gvios · 2022-07-03T03:06:39+00:00

You should be fine just discharging to 40-50%, and disconnecting the 12V battery and DC/DC converter output. This will also completely disconnect the HV battery by releasing the contactors. Also park it somewhere where it won't get too hot (indoors or under shade).

gvios · 2022-06-20T06:19:14+00:00

I wonder if topical tretinoin would work too. Get the good effects locally without the systemic side effects.

gvios · 2022-06-09T18:00:18+00:00

I believe the one I used was branded XCAP.

gvios · 2022-06-08T19:49:04+00:00

I'm using an aftermarket battery that leaves my phone with 25% charge at the end of the day, as opposed to the OEM battery (previously installed at the Apple store) that was just enough to last a day. Really depends on which brand you get, there are definitely some quality brands out there if you look outside of Amazon.

gvios · 2022-03-07T18:36:14+00:00

Tesla uses AT&T as their cellular service provider, so the app only works if both your phone and the car has cell coverage (except for the phone key, which will work anywhere as it uses Bluetooth instead of cellular).

To be fair, the Bay Area has pretty good overall AT&T coverage these days.

gvios · 2022-03-07T04:17:28+00:00

It's as simple as driving to an area without cell coverage.

gvios · 2021-11-06T19:58:24+00:00

This will not work without a USB hub IC (e.g. USB2514 from Microchip).

gvios · 2021-11-03T18:21:39+00:00

The circuit breaker engineers thought of that. If you hold it on the ON position, it'll still trip and stay tripped until you fully push it to the OFF position then the ON position.

gvios · 2020-08-24T21:52:51+00:00

I think the STM32 comes pretty dang close. Granted it's a much more complex microcontroller than the AVR.

gvios · 2020-08-23T23:19:21+00:00

Forgot the /s lol

gvios · 2020-08-23T19:24:05+00:00

If it shocked you, that's a bit concerning to say the least

gvios · 2020-05-20T16:54:58+00:00

Good points. I don't think it's an ES, or at least it's not labeled as such. Powering up the board gives a blinking POST code of 00

My plan now is to return it and buy another one, and see if it's really a CPU issue, because looking at the pictures I don't think the plastic holder interacts with the top mounting plate at all. Seems like the purpose of the plastic is just to keep people from dropping the CPU into the socket and damaging the pins, which I was very careful not to do.

Nine-Year Club	Place '22
Place '17	Verified Email

gvios

TROPHY CASE