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- You Reply: "Wed Nov 21, 2018 10:33 pm - We will release a updated BIOS in this week! Will keep u updated!"
Really, r e a l l y?
I think I need to start re-designing my system and use Intel NUC or similar for my project - You Reply:
revtor wrote: ↑Wed Feb 06, 2019 5:41 am Mac, did you open the connector on the LP, slide the ribbon in and then close the connector? It should hold the ribbon tightly ...
I did, yes. It was very tight and stable.
-Mac - You Reply:
revtor wrote: ↑Thu Jan 17, 2019 1:31 am I’ve got my 17” eDp lcd panel to work. ! Tricky part was figuring out what ribbons were necessary and how to operate the connectors... I found ribbons on aliexpress....
Hi, great to know!
Could you please share the part numbers of the ribbon cable you ordered from the AliExpress. The one I ordered from ebay seems to be "the wrong one" I am able to get the picture by holding my finger to tighten the ribbon cable against the LP-connector, but as soon I get my finger off picture disappears from the display. So the display works OK, the cable not ...
In my version of the ribbon it must be inserted 'upside down' so that the clear connectors are facing the LP board, otherwise there is a nasty sound of power overload as the display is "short circuit'd" Because of this "upside down" connector only the far end of the ribbon cable is loosely connected against the connector pins of the cable slot causing all my problems - I believe.
Thanks!
-Mac - You Reply: After some more testing I think I found a bug (?) in the Alpha that could prevent all functionality in case of power loss.
As this thread is about Auto-Power-On I decided to write this in here even when the topic is loosely connected to my post about the remote controlling of the Alpha.
The system of mine is headless, so no screen, no keyboard and no mouse. Everything is done via RDP. There is USB 3 HUB connected to Alpha that has it's own power supply. In the HUB there is six SDR dongles connected 24/7.
Now, if I simulate a power loss and remove all the power from Alpha and USB HUB at the same time and put it back at the same time only one time of 10 the Alpha wakes up to the normal state waiting to be put on via SW. It does not matter how long I keep power off, Alpha does not start at all if the USB HUB is powered at the same time with Alpha. If I first turn power on to Alpha and then to USB HUB everything is working.
I had similar problem with Odroid XU-4, it did not boot when external monitor or powered USB HUB was connected - somehow some current was leaking via either powered HDMI or from the USB HUB that kept Odroids +5 volt line active enough so that the 'bios' was not able to function when the main power was introduced to the board.
Based on this finding I decided to expand my RaspberryPi idea from my previous posts to include not only one channel relay, but four instead so that I can remotely control all the power supplies that are connected to the system. Alpha power supply, Alpha SW, USB HUB power supply and there is one extra for other/later usage too. Now it is enough that I can get the RasPi Online - I can control Alpha's power in all possible way remotely as it seems to be somewhat unstable.
I just ordered the final parts to this mod, so after I have received them and tested my theory in practise I'll update this thread with detailed parts info and code needed in case someone else want's to try my approach - estimated time of delivery not later than second week, February.
Edit #2:
Parts arrived and are working as expected.
The relay board is: https://www.ebay.com/itm/Keyestudio-RPI ... 2749.l2649
It works OOB. I made a veeeeery simple Scratch based ' Control Program' - PM me for details
(Edit: Typos)
(Edit #2: Details about the parts - You Reply: @derecho
You are correct about the overkill, but then again I do use RapsberryPi to get remote access via SSH tunneling and for security camera as the Alpha is going to be installed to my remote location together with my all HAM and DX equipments.
Having access to the 'physical power switch' was an idea that was easy to do with the stuff I found from my tinkering box - and I do also find it quite relaxing thought that I have a separate device to control Alpha as the operating system used in my project is Windows 10 and I am not that happy with the way Microsoft updates it's OS. Now I have at least a way to totally put the Alpha off if OS crashes or get is some odd state that nothing happens or even BSOD.
And yes, some satisfaction is to do this kinds of hack's and tinkerings
-Mac - You Reply: My solution for now is to have a RaspberryPi together with Alpha in my project. RasPi has a micro-relay connected to some GPIO pins and with a simple script I can then give commands to RasPi that mimics some one "pressing" the SW switch.
The RasPi has a small battery powered 'UPS' so it will stay on in case of power loss and I can SSH in to that RasPi as soon as the internet connection is back up after power loss. So I kinda have a remote controlled power switch for Alpha. I also use the same RasPi for secured remote access to Alpha via SSH tunneling and it also has a webcam that I can use to monitor the room where this system is installed. - You Reply: I believe this panel is a similar and should/could work directly with Alpha:
http://www.panelook.com/LTN125HL02-301_ ... 26609.html
It has same specs what comes to the interface than the 15,6" mentioned in the original post.
I'm planning to get one, it is around 50+€, but if the bigger one with same characteristics works OOB, I trust this will also Famous last words
-Mac - You Reply: This was something I asked over year ago while Alpha was still on the design table and Kickstarter was going crazy about the Alpha. Back then it was said that "This is a default option to have, will be available in the final product".
I'm still waiting my board to arrive and while doing that I'm reading the Community forum to learn about the current status of the Alpha - and found this thread a very discomforting - my whole project depends of the Auto-On feature and based on the promises year ago I participated to the Kickstarter campaign. I do hope that the update is available, if not, I have absolutely very extremely expensive piece of IT I have no use whatsoever.
If this option is not possible, then I think I have to teach my Mom to put the board on after power loss as I am not living in the final location of the Alpha - not gonna happen