Finally I am starting to do a little electronics again.. First thing is a prototype assembly of RASLE (Rpi Arcade Sound and Light Extension). It's a custom made arduino "coprocessor" for a raspberry pi, built into retropie arcade cabinets. It's a joint project with a couple of friends that are building arcade cabinets (I built mine a couple of years ago, I think that there is pictures earlier in this thread).
stereo 3W class-d amplifier
3 pwm channels for LED strips
a port for WS2812 type led strips
pwm channel for fan
output for a relay to control mains input for the box (let the rpi shutdown cleanly, before disconnecting power)
5 button inputs (shared between rpi and atmega)
Thank you for the nice compliments, but I'm not an expert, I just know something, and listen to our technicians at work. I work for a hearing aid company, in our PCB manufacturing plant
Yes hydrophobic coating, the machine is quite expensive, so a now retired technican made the machine himself, (He is also a quite bright guy), anyway a similar machine can be bought from Europlasma https://www.europlasma.net/products.html
as I understand the gas (teflon I think is used as gas) is sprayed inside a vacuum chamber, and then the hearing aids with electronics are rotating (Like a slow tumblking washingmachine),
and then after a while not sure but about 20-25min the process is finished.
Quite a large number of inexpensive nRF51/nRF52832 watches which appear to have already been hacked, documented, and made available for others to now hack too: https://github.com/curtpw/nRF5x-device-reverse-engineering
@NeverDie said in Coronavirus (way, way, off topic):
I'm not sure how much the hospitals can actually do that makes a difference.
Specialist ICUs can save some of those who are develop viral pneumonia, the reality is that some will die but there is no telling which is which until they succumb. The dilemma is that once ICUs are overloaded the fatality rate climbs due to prioritisation, so the trick is to avoid overwhelming the facilities or accept a higher death rate than may otherwise be the case.
The easiest way to look at this much is as a flu outbreak, but with the added feature of 10 times the infectivity. For flu there are shots which can provide greater but not complete protection for the more prone, an annual mutation which the manufacturers refine on each cycle.
In the COVID case there is as yet no vaccine nor natural immunity, but crucially it is infectivity which is the danger as it presents a deluge of critical cases rather than spread over say many months.
Social distancing and isolation measures can slow the rapid spread, testing vigorously and isolating as in the Singapore and Korean etc models is another successful technique.
The rest is a political decision...
This post I thought entirely apt...