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by sky59
Thu Jan 09, 2020 1:39 pm
Forum: Beginners
Topic: Raspbian / wxPython GUI refresh problem
Replies: 0
Views: 53

Raspbian / wxPython GUI refresh problem

I installed on latest raspbian (about a month ago) wxPython from source code. Everything finished without any problems thought it took it a lot of hours. Before I also upgraded all actual updates to raspbian system. I already prepared some code (in attachment). It makes 8 measuring instruments and m...
by sky59
Tue Nov 12, 2019 7:38 pm
Forum: Beginners
Topic: "industrial" system on SD card
Replies: 32
Views: 1550

Re: "industrial" system on SD card

After installing vnc into lite I can connect to rpi with vnc viewer but it "can not show desktop"

I tried many options but after hardware locking sd card it does not boot any more

What simple option you mean to make sd act like live CD?
by sky59
Tue Nov 12, 2019 5:06 pm
Forum: Beginners
Topic: "industrial" system on SD card
Replies: 32
Views: 1550

Re: "industrial" system on SD card

I have just lost two complete days of my life. My conclusion is that whole this project Raspbian is total **** It is suitable for children up to 10 years. If is stops working throw it away go play football oufside. Why?: - setup headless system is almost impossible - where is wlan0 initiated? If i w...
by sky59
Mon Nov 11, 2019 2:43 pm
Forum: Beginners
Topic: "industrial" system on SD card
Replies: 32
Views: 1550

Re: "industrial" system on SD card

I turned off overlay so it is back with boot readonly, but the rest is still rw: I need complete SD to be readonly [email protected]:~ $ mount /dev/mmcblk0p2 on / type ext4 (rw,noatime) devtmpfs on /dev type devtmpfs (rw,relatime,size=469544k,nr_inodes=117386,mode=755) sysfs on /sys type sysfs (rw,nosu...
by sky59
Mon Nov 11, 2019 2:22 pm
Forum: Beginners
Topic: "industrial" system on SD card
Replies: 32
Views: 1550

Re: "industrial" system on SD card

Now it does not boot anymore :)
by sky59
Mon Nov 11, 2019 2:20 pm
Forum: Beginners
Topic: "industrial" system on SD card
Replies: 32
Views: 1550

Re: "industrial" system on SD card

Surprisingly I had to update raspi-config because the most actual (present) Raspbian does have the raspi-config old version!?

Now I managed (not tested yet) to enable overlay and boot as read-only system

New question: how to redirect /overlay to second usb stick?
by sky59
Mon Nov 11, 2019 1:52 pm
Forum: Beginners
Topic: "industrial" system on SD card
Replies: 32
Views: 1550

Re: "industrial" system on SD card

Thank you

I tried to search "read only" but I got only results for those failed sd cards

Could you start me up what would be suitable keywords to search?
And about having overlay in separate usb stick? Any possibility?
by sky59
Mon Nov 11, 2019 12:57 pm
Forum: Beginners
Topic: "industrial" system on SD card
Replies: 32
Views: 1550

"industrial" system on SD card

Everyone has already experienced a terrible problem with not working SD card after a power failure or inproper shut down or any other from millions reasons..... In all these cases the system got corrupted I have this idea: - the SD card can be made write protected, even permanently by internal SD ca...
by sky59
Sun Oct 06, 2019 4:54 am
Forum: Graphics programming
Topic: Graphical programming _ the most suitable tool?
Replies: 0
Views: 1645

Graphical programming _ the most suitable tool?

Hello people, I want to ask you what development tool you would recommend for following system: We need to monitor some parameters, analog, digital inputs Want to use rpi with 7inch touchscreen Tool should support libraries with already prepared graphical blocks, like instruments, digital "" instrum...
by sky59
Tue Apr 04, 2017 8:46 am
Forum: Troubleshooting
Topic: tightVNC & readonly SD card
Replies: 0
Views: 190

tightVNC & readonly SD card

I already have system that runs very well and I have no intention to change to RealVNC. I have on it: - WiringPi to acess thermometer MAX6633 I2C - remot3.it to acces over internet and even WIFI connection - virtual desktop + tightVNC I use it as remote system to check my home. I wanted to improve a...

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