Thank you for doing the Initial design of an App.
To give you some background, the App is to be used at the Start / Finish of a Rally Stage i the middle of winter, using gloved hands.
I would like the controls to be chunky and robust.
It can be cold, wet and windy.
The App is being designed for my next event on 9 February 2019. At the Start of each Stage, I would like to set the Stage number, and the Stage Post, [ and preferably Lock it for the duration of that stage ]. At the end of that Stage, it would be unlocked and changed to the next Stage details.
[ I don’t want to have to enter those details every time ]. The cars normally arrive in sequential order, so Car # 4 will be followed car # 5. On that basis,
It would probably best to have a displayed number and a
Plus / Minus to toggle to the next number, again with large buttons. Likewise, the cars normally depart at minute intervals, so the hour will normally set and may increment up by one in the duration of the running of one Stage. The minutes will increment by one minute for each car, so a plus / minus format would be suitable. The cars will start on the whole minute [ 00 ], which will not change. However, they do do 30 second starts, so the final
seconds could be 00 or 30. On my Validation List, I had a 30 and 00 at the top and bottom of that List so that the Operator could toggle between them. When the Enter button is pressed, , the data string [ Stage # / Post / Car # / Time is passed to the next available line on the spreadsheet. The spreadsheet is designed to have 3000 lines of data in the blue columns, [ that is 99 cars for 12 stages with a Start and Finish, plus some headroom ].
The Blue columns form a vlookup table, which feeds the following sheets.