Many decimal numeric indicators used in real airplanes can be replicated in your home cockpit using 7-segment LED modules, which can be a pretty realistic substitute, especially if you can find indicators with right size and color.
In SimVimCockpit you can choose what type of control is most suitable for every of your 7-segment indicators, any display can be made using:
Also, there are various pre-assembled modules on the market, with MAX7219 or TM1637 drivers, or modules with 74HC595 registers - you just need to connect display module to one of the 16 output and configure what to display on it and how.
All 7-segment displays are connected to one CD74HC4067 multiplexer board that is used as output extension for 16 devices. So, you can have in total up to 16 different 7-segment displays that are numbered in the range of 1 to 16.
Each display module has 3 input signal lines (besides power lines). You need to connect the "CLK" input to the extended otput assigned for this 7-segment display.
Two other signal inputs - "D" and "L" - should be connected to the corresponding common lines - "D" (pin #28) and "L" (pin #30) output signals. Read more information about 7-segment displays on the tech guide pages
Note: The "L" and "D" signals are not used for TM1637 driver, that is controlled using additional fixed output pin #29 marked as "T" and connected to "DIO" input of all TM1637 used.
If you have only one 7-segment display in your cockpit (wich also can be used to display 2 or 3 parameters) , you have the option of connecting it without an extension board. Just connect the "CLK (S)" signal of your display directly to the "SD" output (pin #26).
You can also use this "single-display" connection if you want to test output to 7-segment display in SimVimCockpit before you have a multiplexer board.
The configuration is unified for all displays, you'll only need to select display type and some additional options. All listed parameters are pre-configured for output in the right format, with dot position, number of digits and some of the display options pre-defined.
Any display can be easily configured to output more than one data value. For example, you can have 2 or 3 independent data on one 8-digit display. In the picture above you can see Bus Voltage + Bus Load on the right TM1637 display and DME distance + DME time on the upper MAX7219 display).
To output additional data on the same display, you need to select second parameter, then select the same display number as for the first parameter was assigned, and enter shift position number.