It's much the same as the last one, only better soldered.
Having waited for the Tirna Electronics to mount the one-wire controller chips from Maxim I've inserted their chip into the circuit and was more confident that it's my dodgy code that's the problem reading the one-wire network, so I got back into the code and now have it working, a set of code for searching and manipulating a 1-Wire network via IC2 and a DS2482-100 One Wire Controller... the next step is to swap in a DS2482-800 and try and read multiple inputs.
