MasterMind - RotaryDial

Community Exhibition / Gallery
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A slightly weird idea. Here I had an old telephone rotary dial, and had worked out how to "read" the dialling, with some simple Arduino code (10 lines). Now what to use it for? The un-original idea: "guess a number". 1,2 or 4 digits by simple binary search and a LED to show Hi/Low. And then I thought of Mastermind where you guess 4 colours, and get a clue about right number right/wrong place.

Thus this little gadget

It plays both the simple Hi/low guess and MasterMind (with different degrees of difficulty) The front picture shows one Green and one Red Led - they are two colour LEDs - so my last attempt got one digit all correct, and one digit in the wrong place and the other two way off.

Code is in attached file

DrejeMasterMind.V2 (10.1 KB)

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Inspiring tinkering!

Do you have pictures of people gazing at you when you play with this device in a bus or train :slight_smile:

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Edit done to top post - added a bit about two-colour LEDs

@robtillaart: no, not yet. :wink:

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Found a bug and some needed improvements
1: Choosing game 5 and 7 now correctly has correct digit range
2: Show all green LEDs after win for 5 seconds,
3: Start a new game of same type after 10 seconds after win
4: removed the timeout if users pause for too long

DrejeMasterMind.ino (10.6 KB)