markplant wrote:js_online, where did you get the ambery and chip from . as I've hacked into my wiring today . but I soldered on phono leads an connected to a rgb to composite an then used the same WiFi sender.
Getting image on to screen but its slightly big slightly blocky and purple .
Converter was from Amazon
http://www.amazon.co.uk/gp/product/B00A ... ge_o00_s00
Getting a bit out of my depth
Cheers for any help
LM1881 I purchased in local electronics store. As its relatively chip try one more.
Regarding Ambery:
Purchased on e-bay with name "
e-video", item: "15Khz RGB RGsB RGBS to VGA XGA Converter Scaler". I do not see this item anymore. As I understood by communication this item was purchased directly from Ambery in US. I believe you can order also directly on
Ambery site
Ambery is connected to 12V power.
Ambery is in NTSC mode.
Cable from X1812 (MK4) is connected to VGA 15pin D-SUB connector. I did not used internal on board connector (only taking green from it to pass to LM1881) as H/V sync on internal connector have resistor in between it and Sync H/V on VGA D-Sub input pin 13 Sync H/V (probably this is raising color change). So I am taking green video wire from connector on board to pass to LM1881 and passing back Syn H/V from LM1881 to pin 13 on D-Sub VGA connector.
Here I recommend you to check are you doing the same or not and also double check that you are passing Red Green and Blue from MK4 to correct corresponding pins on D-Sub 15. To find right wire on D-Sub I recommend you also ping thru (beep) with tester Red Green Blue on Ambery board with corresponding pins on Ambery D-Sub VGA to be 100% sure you use right wires on D-Sub (Red Green and Blue on D-Sub are linked directly with Red Green and Blue on board).
So check
this page, pinning of Ambery is on the bottom.
If stuff above is not helping try to check Ambery converter at home by connecting different RGB source (for example DVD player at home( and simply passing composite to external monitor or tv).
Screen in WiFi video sender is bigger, I confirm this, so you need to zoom in by standard android method (moving 2 finger closer). I recommended developer to remember last user choice, so hopefully it will be included in next versions.
Sometimes picture little bit is not stable and shakes minimal. As I found this is issue of wifi video sender and re-opening app helps.
I hope in close future video in for android will be improved and standardized (VGA video in, HDMI video in etc) and I hope more devices will be available, so replacing only wifi video sender will solve all current issues and expecatations.
I am not sure, but I believe it is not good idea to connect the same RGB from MK4 to 2 sources (BMW board and Ambery) at the same time as signal will have noise.
And of course I wish you patience mate and idea will succeed one day. I was bearing monitor idea for 2 years, searching on google, reading this forum, reading another papers.