Hi,

I had a problem driving a digital triac from my pic microcontroller. I've been using +12vDC relays to control 220vAC loads. Christmas is coming and I want to build a simple light sequencer for my Parol composed of 8pcs of 10w 220vAC incandescent lamp. I'm sure that relays are not suitable for this application.

Our local electronic store gave me a sample TRIAC called BT136-600D. He said it is a digital triac. So I rushed to my desk and downloaded the datasheet of this component.

here's the datasheet of my digital triac:
h**p://www.nxp.com/acrobat_download/datasheets/BT136_SERIES_D_2.pdf

This is my first time to control a triac and i have no idea how to control it. So i mimic the operation of my relay program. I'm using PICBasic.

I don't know whats wrong. I'm expecting that the incandescent lamp should turn on and off with respect to what has been programmed.

Start:
PortB.0 = 1
Pause 500
PortB.0 = 0
Pause 500
Goto Start