The MHT Inspextor Display is a high-resolution 480x854 pixel 5-inch intelligent wall-mounted RS-485 display controller. Connect it to MHT Node90 or MiniNode via its RS-485 port and 24V power output. The display controller provides a user interface for sending light and shade control events.
Brightness Level Control
The first display view provides 5 brightness levels for 100% to 0% in steps of 25%. Pressing any of these level buttons will send a dimming event to the Node which will change the output brightness. Or this could control the level of a shade.
4 Button Control
The second view provides 4 Buttons for sending On or Off events or Up or Down events. It is a similar user interface as the MHTi 4BTN WallSwitch. The On button sends an on command which the Node would turn its output on. Similarly Off, Up, and Down buttons send their respective events when pressed. Like brightness level these buttons can control light brightness or shade position.
7 Button Control
The third view provides 7 Buttons for sending Scene Event as well as On or Off events or Up or Down events. It is a similar user interface as the MHTi 7BTN WallSwitch. The Scene buttons can be used to set the Node outputs to prescribed levels like change light brightness and even color. These buttons can also control shade position.
Color Control
The fourth view provides Color Control Buttons for sending tuneable white color temperature or RGB light color values. The color temperature can be adjusted from warm 3000k to a cool 5000k. The RGB values each range from 0 to 255. Both interfaces are set by tapping on the color. For the color temperature tap along the color bar. And for the RGB color tap within the color triangle. The color value is displayed below each color feature.
Display Programming
Use the RS-485 USB programming adapter to program the display. There are two RJ45 ports on the back of the display. Make sure to remove all other cables before connecting the programmer.
- Download and run the programming software .
- Download and open the MHT_4VIEW Display project.
- Verify the display is connected by checking the Comms page.
- Select Flash Destination on Project page.
- Then click the Download button on the Home page. This will program the internal flash memory on the display. The 4VIEW Display application will start after the download finishes. And since it was programmed to flash, the application is persistent which will load after reboot.
Setup microSD Card
The images used in the display application are saved to a microSD card. This inserts into the side of the display. Remove it and connect the card to a PC.
- On the Tools page select RMPet
- Select the drive for the card connected. In this example the D is the drive for the card.
- Follow the instructions to delete the partition table. Create a new table. And format the driver at FAT16. Use the default cluster size 64k.
- Then copy the images files from the MHT_4VIEW Display project to the formatted drive.
- Finally, remove the card from the PC and insert it into the side of the display. Then power on the display to verify the application is able to load the images.
- If you see "File error 15" and the images are not visible but the application is running, then repeat the microSD card setup.
Wiring Installation
There are two RJ45 port on the back of the display. These are same functionality and are electrically connected in parallel. You can connect to either port. The port is for RS-485 interface. Don't confuse this as an ethernet port. The port pins are number 1 on the right and 8 on the left side.
- Pin 1 - connect to a 12-24V positive power supply with at least 2W
- Pin 2 - connect to +A RS-485 terminal
- Pin 3 - connect to -B RS-485 terminal
- Pin 4 - connect to GND negative return for power supply
Wall Mounting
The display is an assembly with several parts. There is a mounting plate that secures the assembly to a wall using 4 screws. The display module clips into this mounting plate. And finally the cover bezel snaps around the display module. The retention features are along the top and bottom edges. Pry along these edges if you need to disassemble.
The mounting footprint is shown here.
