The RESET input is driven high (to 3.3v) by the on-board reset controller. You can drive it low through an open-collector circuit to reset the board, but you should not drive it high. If you need to, use the voltage present on J1 pin 1.
Detection time depends on user-adjustable touch parameters. Factory settings recognize touches in around 20ms. The corresponding serial response sends immediately if no commands are being executed. However, there is no guarantee since the screen could be performing some command when the unit is touched. The evaluation kit unit has a very responsive keyboard demo. However, the ultimate response time depends on how the unit is used.
Compressing bitmaps in our SLCD products allows you to save Flash memory space. The disadvantage is that compressed bitmaps display more slowly. To balance performance and Flash display storage, it is best to use the “Enable Bitmap Compression” checkbox in the BMPload application. For bitmaps that are large (i.e., cover the entire screen), or are re-drawn often, disable compression by inserting the string “.unc” into the file name (e.g. “01_MyBitmap.unc.bmp”). This string tells the BMPload program not to compress this image. Background bitmaps for slider objects and meter objects and sliding graphics (“xio” command) need to be uncompressed. Using the strategy above should keep your application visually responsive while conserving Flash memory for future additional bitmaps.
The “Vertical Mount” display module has mounting tabs on the long sides of the display module, with the tabs aligned vertically when the module is in landscape orientation. The “Horizontal Mount” display module has these tabs on the short sides, with the tabs aligned horizontally when the module is in landscape orientation. The two options allow customers to fit a module into either a narrow or short space. In both cases, the default orientation is landscape, with the long sides horizontal, but the modules may also be used in portrait mode with an alternate firmware load.
Mounting the LCD and touch panel directly against the chassis front panel is not recommended. The panel specifications for all of our display modules show how the LCD and touch panel will be mounted. It must have a gasket, and we offer silicon foam gaskets for some of our modules. You will need to use a “soft” gasket and plan on some tension on the display module mounting tabs, but you should not plan on flexing the tabs. You will need to use stand-offs or spacers between the front bezel and the display module to ensure that you can apply enough pressure to compress the gasket to get a seal but not so much pressure as to flex the mounting tabs. The stand-offs will also provide a secure mounting for the display module. We use a black silicone foam product called “HT-800“. We use the version with adhesive on one side [...]
We recommend two suppliers for gaskets: GM Nameplate 408-944-3848 Damian Silva damian@gmnameplate.com Precision Die 503-685-9130 Terrye Young terrye@diecutinc.com
We use die-cut gaskets for our enclosed units from Precision Die Cutting. The material we use is a black silicone foam product called “HT-800.” You can also check with Gasket Specialties about the products they offer. Reach Technology offers gaskets for some modules. Visit mounting options for more information.
Check in the Panel Specifications for your display module. They often contain mounting guidelines. If not, you can also refer to the general policies in one of these documents: Resistive Touchscreen Integration Projected Capacitive Touchscreen Integration
You may hear our enclosed units referred to as, GOITs which stands for Graphics Operator Interface Terminal.
We have not had a lot of demand for an Enclosed 4.3” unit, so we have not developed one of our standard NEMA enclosures. Search the site for available enclosed units. We are looking for a customer or set of customers interested in purchasing more than 100 units to justify the development of such an enclosure. If you are such a customer, please contact our sales team. Here are some other options to consider: Several customers have used plastic electronic enclosures (often hand-held) from Polycase and Bud Industries. Several use Lexan between the screen and the enclosure. One customer has developed a bench-top enclosure to house our product. It is ready to accept the SLCD43 module with a touch screen and provides ample space to house power supplies, processors, I/O connections, etc. Features include: Adjustable touch screen viewing angle Anti-glare touch screen overlay window Extended wiring and connectors for SLCD43 Access opening for SLCD43 [...]
