Hi to everyone and thanks for your time.
Since I am a newbie in the construction of electronic circuits using arduino uno, I would like your guidance in the project that I try to complete.
Specifically, I want to construct a resistor power control circuit (dimmer) for a resistance of 60 Ω , 1300W and 220V.
I want to control this circuit using 4 steps buttons (not a Potentiometer). One button will increase the supplied voltage in specific values (e.g. the first push/step will supply 50 V in the resistance, the second 100V etc). An another push button will make the reverse process, it will decrease the voltage in specific values (a first push will decrease the supply voltage from 100V to 50V, a second push will decrease from 50V to 0 V etc).
This circuit will trigger the gate of a TRIAC BTA25.
I would appreciate if you gave me your advice for both the code that I have to write down and the corresponding wiring that I have to create for making my circuit functional.
Thank you in advance!!