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by eehmke
Tue Mar 12, 2019 11:30 am
Forum: Raspbian
Topic: wpasupplicant update?
Replies: 10
Views: 4639

Re: wpasupplicant update?

I did a test on a similar system and found this lines in the system log: unknown global field 'tls_disable_tlsv1_0=1 So wpa_supplicant failed to start because of unknown lines in the config files. Seems something is broken, or where are these lines supposed to be? I have them in /etc/wpa_supplicant/...
by eehmke
Mon Mar 11, 2019 2:19 pm
Forum: Raspbian
Topic: wpasupplicant update?
Replies: 10
Views: 4639

Re: wpasupplicant update?

I was too fast and added the suggested lines

Code: Select all

tls_disable_tlsv1_0=1
tls_disable_tlsv1_1=1
on my headless pi. Now it is not accessible anymore, and I have to drive 80+ km and climb onto a roof to get the sd card. Should I just remove those lines, or what is a safe way to make it work?
by eehmke
Thu Nov 15, 2018 1:22 pm
Forum: General discussion
Topic: Raspberrypi will not boot when USB hub is connected
Replies: 1
Views: 183

Re: Raspberrypi will not boot when USB hub is connected

I could solve this by providing separate power at the 5V connector. Boots up fine now.
by eehmke
Wed Nov 14, 2018 4:42 pm
Forum: General discussion
Topic: Raspberrypi will not boot when USB hub is connected
Replies: 1
Views: 183

Raspberrypi will not boot when USB hub is connected

Hello, My RPI 3b has this USB hub connected: https://www.amazon.de/Renkforce-Raspberry-4PORT-USB-Power/dp/B019HK9TEQ When I have the hub disconnected and power up the RPI, all is fine. When I then connect the hub, it is detected fine and the devices plugged into the hub work. However, when the hub i...
by eehmke
Thu Jan 31, 2013 9:23 am
Forum: HATs and other add-ons
Topic: How to sense a 5v input with GPIO
Replies: 18
Views: 47523

Re: How to sense a 5v input with GPIO

The circuit posted by Metatronin is no level shifter, as the transistor works as emitter follower (common collector). If input from PI is 3.3V, output will never exceed 2.8V. The transistor needs to work in common emitter mode to get a 5V output. In this case the signal is inverted, so you may need ...

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