Arduino tehNiq

   In article named  Measuring AC Voltage with an AC to AC power adapter  from  OpenEnergyMonitor  I found a interesting solution for measur...

   If you need to measuring AC main supply voltage with Arduino must made some calculation.    I use a simple schematic:    I can dir...

   I made a system for home acces with delay-off using keypad from outside and push button from inside. I write a sketch for use actuator or...

see about this article on HACKADAY ;)    I give for tests an old vfd display made by Itron with 20 characters each made with 14 segments...

original article    A FM radio with RDS info and digital volume can be made with RDA5807 module, who is similar as TEA5767 (pcb board ...