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Gearbest SG - 700 Satellite Navigation Foldable RC Drone Quadcopter - WHITE 720P WIFI FPV CAMERA
SG - 700 Satellite Navigation Foldable RC Drone Quadcopter - WHITE 720P WIFI FPV CAMERA only $46.99

Gearbest Xiaomi AMAZFIT Heart Rate Smartwatch - BLACK INTERNATIONAL VERSION
Xiaomi AMAZFIT Heart Rate Smartwatch - BLACK INTERNATIONAL VERSION only $89.99

Gearbest FeiLun FT011 2.4GHz Brushless RC Racing Boat - BLACK AND WHITE AND RED
FeiLun FT011 2.4GHz Brushless RC Racing Boat - BLACK AND WHITE AND RED only $96.99


Bluetooth Arduino TRIAC AC dimmer









Schematic ZERO cross


This is the scheamtic made with Arduino UNO. In the code we create an interruption each time the signal is LOW, so we detect the 0 cross of the main AC signal.


AC TRIAC dimmer Arduino


Also check the part list here if you want to buy all the components.