Hi Charlie,
Yes the Wi-Fi module needs 3v3 TTL, the Max232 I was looking at was selectable 3v +/- to I think 8v +/- with a threshold voltage of 1v3 to 30v +/-.
The SEROUT function does produce a perfect square wave @ 3v3 and invertible but totally dependant on the pic used 3v3 verses 5v0 the same as the MAX232 does so that is good enough for me.
Thanking the forum for this info..