reaction timer with multiple random inputs

Projects General Guidance
1

Hi, I want to build a reaction timer with 64 illuminated momentary buttons. The idea is that one will randomly light up followed by the player hitting it. Then another.......

There must be something similar out there but I can't find it.

It's a bit like a 'wack a mole' game.

thanks for any advice

David

2

Hello.

What exactly are you looking for?

3

Try Googling "Arduino Whack a mole" (note the spelling). There are loads of projects out there that should give you some ideas.

Steve

4

Moved your topic to a more suitable section.

You may want to READ THIS for future reference.
It will help you get the best out of the forum.

Bob.

5

Should be pretty easy to implement with two matrices. One for the LEDs, one for the buttons. As it seems you're lighting up only one LED at the time I'm thinking of two MCP23017 port extenders. One for the button matrix, one for the key matrix. Very easy to work with but as they communicate over I2C they're too slow to multiplex. They [can handle button matrices.

If you want to be able to light up more LEDs at the time, look at the MAX7219 modules for your LEDs.](GitHub - joeyoung/arduino_keypads: arduino libraries for keypad interface on I2C bus)