MobiFlight Community Support

Hi, I am using (2) Max7219 7 Digit Led Display for the COM1, I need to know how to simulate the On/Off button as I do with the Carenado King 90 virtual cockpit, in fact I want to turn off the display, i have maked some test, If transform the offtset value to 0 all the digit turn to 0 but dont hide or off the display, If disconnect the VCC and GND wire it reduce the light intensity but it does not Off or Hide, any ideas?, Greetings

Hi javiersan

I don´t know the offsettable of the Cereando King 90..... So you need to make youre precondition or Offset based Turnoff youreself

Basicly if you wan´t to Blank a Display you need the Compare Mode.... But not use "0" Zero´s for this.... Use "Space" . Number of space is number of diggits used in Display....
For Example on a 5 Diggit Display say If Value is .... Then "5 Space" (Pressing 5 times the space bar in the THEN Field....

Just search the forum if you need to set a Switch for this Turnoff.... Here you need a Custom Offset maby if youre AddOn not support a special blank offset.

Hi Pizman82

I followed your recommendations, I succeeded in blanking all the display digits when I pressed the ADFOff button, but now when I press the ADFOn button the display show the values: ​​10000 and not the ADF1 value, to solve this I had to add the LUA ipc.control (65650, 1) to make ADF1 Swap and so show the value of the ADF, I would like to know if there is another way to avoid placing the ADF1 Swap.

Thank you very much for your support

Hi Javiersan

Here i can´t help you at the moment cause i don´t know the special technic of youre addon.... Additional i don´t see youre config.... So i can not understand what youre ADF ON/OFF Button do or how you config the displays...... And i don´t know how you use the Blanking Compare methode.... With Precondition ??

To solve youre problem best way is you send me youre mcc File for this element.... OR You explane me here step by step the configs ( In and Output) that you use for this project.
To prevent you of 2 hours of writing i will recomend you to send the file......
Email: pizman@freenet.de
(Please give me information about used AddOn and Simulator Software by @mail, too. Additional explane me what the switch should do exactly in the real plane)


Apology for waiting time, mabye. Got little trouble at job at the moment. Can take some days to solve / reply .