thedarkshade Posted March 3, 2012 Share Posted March 3, 2012 Hi everyone I've had this project on controlling the light intensity with a microcontroller, using phase control. I've build the zero-cross detector and the circuitry to interface with the light via an optocoupler (MOC3023) and a triac (BT138), but I'm a little stuck on the software. I'm using an on-board potentiometer to control the intensity and a 12bit ADC to get the digital value, but I think I can easily complete by having an 8bit value. So my point of concern is how do I change this 12bit value into an 8bit one? Any help at all would be greatly appreciated TDS Link to comment Share on other sites More sharing options...
ewmon Posted March 3, 2012 Share Posted March 3, 2012 There isn't any conversion. Use the ADC's 8 MSBs. Link to comment Share on other sites More sharing options...
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