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by harbaum
Fri Apr 21, 2017 11:39 am
Forum: Troubleshooting
Topic: Plymouth & Jessie Lite
Replies: 7
Views: 2885

Re: Plymouth & Jessie Lite

I also face the problem that i am unable to get plymouth to run on the waveshare display. The debug output of plymouthd includes this: ply-device-manager.c:336] create_seats_for_subsystem:found node /dev/fb1 [ply-device-manager.c:342] create_seats_for_subsystem:framebuffer device other than fb0 foun...
by harbaum
Tue Jun 07, 2016 9:25 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: KeDei 3.5 inch 480x320 TFT lcd from ali
Replies: 235
Views: 196168

Re: KeDei 3.5 inch 480x320 TFT lcd from ali

I wonder if your really have to replace all three shift registers. You imho should be able to keep the two used for the data lines and just rewire the control lines in a way that they match with e.g. the waveshare setup.
by harbaum
Tue Jun 07, 2016 3:55 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: KeDei 3.5 inch 480x320 TFT lcd from ali
Replies: 235
Views: 196168

Re: KeDei 3.5 inch 480x320 TFT lcd from ali

I recently bought a Waveshare 3.5 inch. The latest drivers are just a set of config files which can be installed over the latest raspbian jessie incl. the stock kernel. I must admit that I am very pleased with that setup and you can get these nearly as cheap as the KeDei. Imho even the adafruit come...
by harbaum
Wed May 25, 2016 7:07 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: KeDei 3.5 inch 480x320 TFT lcd from ali
Replies: 235
Views: 196168

Re: KeDei 3.5 inch 480x320 TFT lcd from ali

I am nor sure it's worth the effort to write a proper driver You'd need to manually reinstall the driver whenever you update the kernel. I like saper_2's approach of modifying the hardware. I wonder if it would be possible to keep the two 595's on the displays data lines of the KeDei, remove and bri...
by harbaum
Tue May 24, 2016 8:15 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: KeDei 3.5 inch 480x320 TFT lcd from ali
Replies: 235
Views: 196168

Re: KeDei 3.5 inch 480x320 TFT lcd from ali

I'm too new at this to be implementing all this but I think that inside of this lib directory may be the info we are looking for. No, these are just binariy kernel modules for a specific kernel version. You cannot just copy them forth and back between different kernels. Kernels refuse to use module...
by harbaum
Tue May 24, 2016 7:57 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: KeDei 3.5 inch 480x320 TFT lcd from ali
Replies: 235
Views: 196168

Re: KeDei 3.5 inch 480x320 TFT lcd from ali

Unpack it: tar zxf LCD_show_v5.tar.gz ... I just received a v6 version of this display from ebay. My experience so far: The LCD_show_v6.tar.gz (and likely also the v5 package) expect a 4.1.19 kernel. The latest raspbian will thus not work as it relies on a newer kernel. I had partial success with t...
by harbaum
Mon Jun 04, 2012 10:38 am
Forum: Other projects
Topic: Case for top hat rail mounting?
Replies: 1
Views: 1388

Case for top hat rail mounting?

I would like to mount the rpi in the electric distribution box at home to let it monitor my power usage etc and let it do various other small home server like jobs. I am sure many of you would like to do the same. So has anybody found a matching case for top hat rail mounting? I think this applicati...

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