💬 4-channel switcher/dimmer

[hhalibo]

@HouseIOT THANKS for rapid reply！

I changed the resistor(r5) to 0 as pitcture shown, no function...

[HouseIOT]

@hhalibo
What supply voltage? 3.3V?..
Usually if properly assembled, there should be no problems.

[hhalibo]

@HouseIOT supply voltage is 220v.

[hhalibo]

@HouseIOT Hi，in your schematics, the D1 is a DIODE, but in your BOM, D1 is nothing. Maybe the problem is here?

[HouseIOT]

@hhalibo said in 💬 4-channel switcher/dimmer:

is 220v

My English not so good, sorry. I say about low voltage on Atmega. There should be not less than 3.3v. If it is less then may not be enough current to open the optocoupler.

D1 i not problem. The zero crossing detect works correctly. You see it on LEDs.

[hhalibo]

@HouseIOT The voltage output from the AMS1117-3.3 is 3.29v, and the voltage of the JP1 (VCC & GND) is 3.29v.

And when the V_PERCENTAGE is 100, the voltage input of the pin1&2 with OK2(3,4,5) is 0.825V.

when V_PERCENTAGE is 30, the voltage input of the pin1&2 with OK2(3,4,5) is 0.25V.

except the voltage input of OK(2,3,4,5) is definitely low，others seems OK.

[hhalibo]

@HouseIOT
I replaced the led1 with a 0Ω resistor, YEAH! Works!:laughing:

and I will replace the led 2,3,4

[hhalibo]

@HouseIOT Sorry to trouble you, i use a mysensors-wifi-gateway with protocol 2.1.1 , and my homeautomation is home-assistant. I can't use your dimmer in my system.

After read the reference, there need to add V-percentage and V-status in the code, as a newbie , I can't do it myself. So I wondered，can you do me a favor?

Thanks a lot.