Need some advice.

[Acetronics2]

Hi,

No problem ... just poll the DS data line to see if conversion has ended.

'*****************************************************************************
' Start temperature conversion
'*****************************************************************************

mainloop: OWOut DQ, 1, [$CC, $44 ]

'*****************************************************************************
' Check for still busy converting ( ~ 4500 fois ... )
'*****************************************************************************

waitloop: 

		INPUT DQ
		If NOT DQ Then waitloop
	
'*****************************************************************************
' Read the temperature
'*****************************************************************************
	
	OWOut DQ, 1, [$CC, $BE ]		
	
    OWIn DQ, 0, [temperature.LOWBYTE, temperature.HIGHBYTE, Skip 4, count_remain, count_per_c]

Here, you won't have a Waitloop, but, say, goto your regulating loop ...

AND remember heating has "a little" ( LOL !!! ) inertia, and some AC periods more or less won't disturb the system ...
the temp data will be updated each ~ .75 s ... that's all !!!

using a MOC 3041 to drive your SCR could miraculously simplify your program ...
just an idea ...

Alain