Hi, I just created a panelized PCB in Eagle, panelized it as two of them fit the 10x10 PCB. When the gerber files are uploaded I can see that in the rendered image only one of them is blue (my choice of PCB color). See screenshot below:
[attachment=0] I understand that render images are only for reference, but so far in all my previous designs they worked perfectly, so I decided to run it by you before placing the order.
So my question is: Do you think it is OK to ignore this problem and go ahead with the order?
Unfortunately you are correct, the test app was only designed for the biggest version of the LCD backpack.[/quote]
Hmmmm, OK, but then can you point me to some documentation that does apply to this version? Otherwise I'm stuck.... I have never done any USB-Serial projects and I planned to learn it from this :)
Hi, Finally, I got around to gather the parts and build the USB LCD backpack already mentioned here: viewtopic.php?f=60&t=3862
When I connected it to the PC (Windows 7 Ultimate 64 bit) it recognized the new hardware and installed all the necessary files automatically from Windows Update. I now have 2 new devices (USB Serial converter and something else I can't remember) working properly in Device Manager. It also prompted me to restart the computer, which I did.
With the test applicaiton (USB_LCD_Backpack_V03.exe) I can switch the backlight on and off, but nothing else. It doesn't give me any error messages either. I can set the backlight and the contrast with the pots on the board, although I have to mention, that I had to add a jumper wire to the board connecting the unconnected end of the pot that controls contrast to GND to make it work (although I don't think this is the problem).
The LCD shows that familiar screen with black blocks until halfway, which usually means it's not properly initialized.
I have double checked the soldering and each wire between the FT232 and the LCD and found no shorts and no missing ones.
I suspect the test app is not designed for this version of the board. Any idea, anybody?
Thanks for the quick reply, but I don't think it's the same. I also found this version, but when you look at the board closely you will find some differences, e.g. on the board there is no place for Q1 (the xtal).
I just received my micro usb lcd backpack and when I was about to start gathering/soldering the parts in I found that there is no documentation on this particular version of it on the site. So I am stuck at the moment.
I can figure out some of the parts, like the status LEDs, filter capacitors, but I am not sure about the rest. Since this is the only panel I got, I don't want to mess it up.
If anyone has a parts layout or list, I would appreciate putting me in the right direction.
For reference, I attached a quick snap of the PCB I received. Front: [attachment=1] Back: [attachment=0]