Arduino tehNiq

my original article     In simple Arduino projects you can use delay command for have few seconds a led on and after that off, but in in ...

original article    A simple system alarm can be made with Arduino board, a sensor module (sound, PIR, Doppler, etc) and 2 switch or remo...

original article    I want to send many commands using just 1 wire (and ground) so I use 2 Arduino boards.    Base schematic for unidirec...

   If you need to find the time what a button is pusshed or you want to use one button for made more function (short or long push / short,...