I have an microcontroller ATmega8, TRIAC MOC3083 and thyristor M166P. I need to develop and device which will turn on/off lamp(220V).

But while I'm developing I don't want work with AC 220V now, DC 12/5V will be fine for me.

How can I connect these parts on the breadboard to be able debug my code? Please, show me a correct circuit.

  • 2
    \$\begingroup\$ This question appears to be off-topic because it requires a complete circuit. \$\endgroup\$ – Matt Young Aug 18 '14 at 15:11
  • \$\begingroup\$ I just need to know HOW I can connect MC to the TRIAC and debug using DC. Is it still off-topic? \$\endgroup\$ – Edward Aug 18 '14 at 15:13
  • 2
    \$\begingroup\$ So put an LED on the output pin? What's the actual question? \$\endgroup\$ – Matt Young Aug 18 '14 at 15:14
  • \$\begingroup\$ The code in question shouldn't be much different considering you have a blink already working \$\endgroup\$ – Funkyguy Aug 18 '14 at 15:14

Just replace the MOC3083 with a visible LED (pin 1 is + pin 2 is -). Unless your drive circuit is very low voltage, the LED will indicate when the triac should be on.



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