Yep, I can never work out why we didn't use an i2c temp sensor originally. I suspect both myself and Patrick were totally blind to the LM77 when we went looking - the 1-wire unit is a pain in the ass, frankly, and more expensive too.

That and lower value I2C pullups so we didn't have to run the bus so slow. The perils of not owning a scope, I suppose (we didn't get one until after the mk2 ISTR).

Hugo