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by daslolo
Wed May 16, 2018 7:40 am
Forum: General discussion
Topic: Raspberry Pi Zero 1ns "cycle counter register"
Replies: 5
Views: 2479

Re: Raspberry Pi Zero 1ns "cycle counter register"

I read that switch mode to kernel takes time on Pi. have you tried programming one of the bare metal things like Ultubo? maybe you'd get faster GPIO read
by daslolo
Sun May 13, 2018 5:35 pm
Forum: Beginners
Topic: 3b+ speedtest.net over wifi = 11 mbps
Replies: 1
Views: 315

3b+ speedtest.net over wifi = 11 mbps

instead of 70 mbps for the iphone.
Is this due to the cpu being slower?
by daslolo
Sun May 13, 2018 9:25 am
Forum: Beginners
Topic: Is it possible to increase the voltage from a computer's USB?
Replies: 11
Views: 1126

Re: Is it possible to increase the voltage from a computer's USB?

It's a 3b+
So powering a pi with a computer usb, not possible?
Any hack possible to up the usb voltage at the expense of amp?
by daslolo
Sun May 13, 2018 6:07 am
Forum: Beginners
Topic: Is it possible to increase the voltage from a computer's USB?
Replies: 11
Views: 1126

Is it possible to increase the voltage from a computer's USB?

Transitioning from arduino which can eat any voltage and be gine, to esp32 which needs no more than 3.3V and no less than 2.7V to rpi which must have 5.1V is interesting. I seem unable to get it running from the powered usb hub that is attached to my computer, the 5V/1.5A from the projector can't ha...

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