Imperf3kt wrote: ↑
Mon Jan 28, 2019 6:11 pm
I wouldn't particularly worry about wearing it out.
Not wearing out as such, but damage the bloody thing/ bend a pin or damage it, or cause solder failure of the socket on the board. It does happen. I have the same sockets and plugs on my motorcycle intercom headsets. Over the years I have had to fix or replace these very same sockets or plugs on the wire part to he mic or earphones or external power multiple times or just scrap the intercom units when the solder of the socket to the PCB has been cracked on the PCB I have six of them dead now from myself or mates plus the two working ones..and one of those is on its way out too They are delicate unreliable shit when constantly plugged and unplugged.
The design criteria and wearing them out will only be looking at wearing the contacts/ plating..not taking in to account poor insertion technique, / accidentally bending stuff, bending the bloody thing while inserted, , the 'frame' pulling out of the plastic moulding etc etc , when trying to put it back /remove it in when leaning around the back of a cabinet or in the half dark of under a desk or similar.
Yes there will be some resistance loss on the switch contacts, but probably more on the micro contacts of the actual plug/socket combo. Switch is bigger, and almost certainly going to have greater contact area than the little plugs.
Here in the UK all our mains wall sockets are fitted as standard with an on/off switch, but doing that, powering off the device from the mains ..and yes I have done that is, you have to wait of the caps to discharge in the PSU, and pit out a lower and lower voltage till the RaspPi LED's slowly fade out, rather than go out instantly as the power switch on the 5v side is turned off.
All this talk made me think...I actually bough two of those cases with the fan running on the GPIO pins...where was the other one, I had forgotten about it. I had a think and remembered where it was, it is in use in my attic on the Pi that is running my Home Assistant /Philips Hue to Alexa Bridge and SDR radio system. Not been running long...August time I guess, but it is still running , current Uptime 95 day. So far so good. Fan is on permanent speed, no fan control and the thing does not get a reboot ...
While I am laid up with this broken leg..I might have to look at otherwise of powering the fan..give me something to do ! and create a GPIO button press for proper power down too. Currently SSH to it from the phone and re boot if from CLI..it is headless system with RTL-SDR USB stick and an X-10 CM11 home control unit