Play a game of Bingo on the Arduino and a 16x2 LCD.
Press the button and a random number between 1 and 75 will be drawn and displayed on the LCD. The letter B,I,N,G or O is also displayed based on the number drawn. Duplicates are taken care of. To get a 'real' random number the Entropy library is used: https://code.google.com/archive/p/avr-hardware-random-number-generation/downloads, e.g https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/avr-hardware-random-number-generation/Entropy.v0.6.zip
Tested on Arduino Uno. Lcd: for example https://www.adafruit.com/products/399
Happy playing Rino