Search found 5 matches

by Gryphon
Fri Oct 16, 2009 10:42 pm
Forum: MOC/MOS/MOI/MOU/X-Board/MOP
Topic: Current draw for VO and transistor drive : MOPAL204A
Replies: 3
Views: 14196

Thanks for your comments Racquel.

Had not thought of using a totem pole style output for the contrast but I can see that this would be a good idea.

cheers
Peter
by Gryphon
Thu Oct 15, 2009 1:31 am
Forum: MOC/MOS/MOI/MOU/X-Board/MOP
Topic: Current draw for VO and transistor drive : MOPAL204A
Replies: 3
Views: 14196

Current draw for VO and transistor drive : MOPAL204A

Hi All, hope this isn't too silly a question but I was thinking of controlling the contrast and the backlight intensity of my MOPAL204A screens by using a couple of PWM outputs and transistors. Basically the PWM drives a transistor with a cap on its output and this voltage gets fed into V0 for contr...
by Gryphon
Tue Mar 25, 2008 3:22 am
Forum: LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT
Topic: Suspect corruption of LK204-25 memmory
Replies: 4
Views: 4620

Should also indicate that I have been using the latest available version of uproject and I redownloaded it before trying out your suggestions to be doubly sure!!

regards
Peter
by Gryphon
Tue Mar 25, 2008 3:21 am
Forum: LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT
Topic: Suspect corruption of LK204-25 memmory
Replies: 4
Views: 4620

Hi Troy, thanks for your response. I tried the steps exactly as you suggested. Here's what has been observed. 1. Autodetect does not detect the module even if the unit is powered up with the R1,C1 jumpered. If I open the port manually I am able to communicate with the module so this is probably not ...
by Gryphon
Fri Mar 21, 2008 4:55 am
Forum: LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT
Topic: Suspect corruption of LK204-25 memmory
Replies: 4
Views: 4620

Suspect corruption of LK204-25 memmory

Hi All, I wonder if anyone has had a similar problem and knows of a resolution. I have a LK204-25 with the extended temperature and supply voltage options. At the moment when it is powered up without shorting the Manual Overide pins, the controller boots up with an unknown baud rate and nothing can ...