The whole rat's nest (with some LED illumination reflecting in the background)
detail of JR servo plug and the copper strip that connects the pcb header pins
The clean connection of onewire temperature sensors, the Dallas Semiconductor 1820, takes a lot of soldering. Once layed out, using the soldering iron seems a clumsy way of rearranging the DS18S20. It happens that Servo extension leads are $1 for 20 at eBay, and I started looking for a simple, elegant and rewirable configuration method for the sensors.
The whole rat's nest (with some LED illumination reflecting in the background)
detail of JR servo plug and the copper strip that connects the pcb header pins
PCB header pins used for snug JR servo lead plug connection showing two attached sensors
Connection scheme used in the images
You can click the photographs for a larger version and use your browser's
This is what I came up with: a CAT5 cabling that connects the one-wire sensors to a box that talks the onewire protocol and poors it into XTension without a hitch. A simple breakout board was made by three strips of 2.54 mm raster pcb headers, of which each row was connected by the copper strip on the board. A tie-wrap holds the CAT5 cable to the board, the connection just before the Barionet is where you decide to tie VDD to GND and use parasitic powering, or connect the three leads separately, and use 'real' power.
Tube clamps with and without insulation
All sensors for floorheating have been attached using tube clamps with nail removed