help noob with variables
trying build home security system 3 or more states(armed away, disarmed, armed stay). code compiles without errors var "state" doesn't change when button on keypad pressed. any appreciated code: [select] #include <lcd4bit.h> lcd4bit lcd = lcd4bit(2); void setup() { lcd.init(); lcd.commandwrite(0x0f); } int state = 1; int keyvalue = 0; int password = 0; void loop() { serial.begin(9600); //debuging purposes only //================================================================================================================================= //=====================================================================disarmed==================================================== //================================================================================================================================= while(state == 0) { lcd.clear(); lcd.cursorto(1,4); lcd.printin("disarmed"); delay(1000); return...