So I just learned that Arduino exists today and wanted to start a simple project that starts at 40 and counts down to 0 every time a button is pushed and changes a 2 digit counter can you help me know what materials I need and how to start programing it thanks.
I would suggest doing the same on the Serial Monitor screen on the Arduino IDE that lets you get information printed that what is working inside the Arduino programme ,see >>arduino.cc/en/Reference/serial with this you only need a Switch and a 10k resistor to connect the switch(push button) with some wires and you have the working thing ready ,now you just need to get further with displaying that info. on a 2 digit 7 seg. display.