nutmegzzzz

I'm looking for a LCD panel that I can put my own light behind and when on, it completely blocks all light (Drive to Black). I control which pixels turn off and with my own halogen light behind it (I need a very bright light) can simulate automobile headlights. The idea is; A glare tester for people who had refractive surgery. By looking through optics the LCD would look close up and I can simulate head lights moving towards the viewer. A second superimposed image on another screen will have a reading test. Does anyone know what company has a LCD panel that I can put a light behind as well as will completely block light with all pixels on, or if anyone knows how I can take apart an LCD and do this myself that is great too. Thanks,

I was wondering if anyone has worked with the Honeywell HMC6352 Digital Compass. I am using it for a project and it doesn't seem to work as well as expected. I have a PIC talk via I2C with the compass and then light up one of 16 LED's to indicate direction. Occasionally the LED's get screwed up and the only way to fix is remove the power source (turning the system off and then on does not work). I've tried to talk with an apps engineer at Honeywell but no one has called back. Thanks for any help.

I saw items like this of all sizes when I worked for the navy. Not sure what they're called but they are used for EM interference testing. They come in all sized to inches all the way up to large room sized

Get the magazine Servo along with Nut's and Volts. Servo is a basic magazine about robotics and what you can do with it and how (not heavy on electronics but it can help out). Nuts and Volts has some good articles about electronics and this should be your first starting point. If you can get back issues on CD for Nut's and Volts.

First time working with PCB design so please bear with me. Instead of having a single ground plane with all grounds connected, Can I use that layer to wire the appropriate grounds together and then bring them all to the top layer and wire with 0 ohm jumpers. Is this appropriate or am I still going to cause a problem not having a single ground plane? I should mention the eval board for this chip uses 2 layers with no power or ground plane. Also because I am using two power supplies (3.3V and 1.8V), instead of having a power plane (originally I was going to have just 3.3V), can I use this layer for various power connections thus saving space on the top and bottom layer. Thanks for your help MP,

I'm currently designing a PCB for a camera system that utilizes 3 different grounds (Analog, Digital and Chassis). ov7940db_1.1_SCH.pdf