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SUGRU — makes a harness possible August 21, 2011

Posted by rik94566 in aquaponic automation, aquaponics, arduino, CAT 5 Cable, CEA, DIY aquaponics, DS18B20, Hacks, indoor aquaponics, indoor gardens, indoor growing, Rj45 connector, sensor, Sensor Hub, Stainless Steel Temp Probe, Standards, SUGRU, Temperature Probe.
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In order to connect up 5 DS18B20 temp probes and make sure all the wires and connectors work correctly took some effort.  The fact that a pull-up resistor is required to take readings was an issue for me.  I have been using 1/4 watt resistors and in tight spaces my resistor wires kept breaking off.  So I needed a way to connect it all up and be protected.  Sugru saved the day.

Sugru made a strong bond

I showed you the end product as that is what most people are interested in.  But it is important to understand how the end product was created.

Here is the starting point:

pull-up resistor configuration

Spacing of the wires and resistor is a big issue here, as if the spacing is off the connectors will not fit into the holders correctly.

one connection made

Next trick was to get 5 connections completed.

5 connections made

bend it just right to get correct spacing

side view

Front view

end product

Now it is possible to continue testing my DS18B20 temp probes with more than 2 probes.  This creation will allow me to build a temp probe hub using Cat 5 cable and RJ45 connectors.  This harness will also make it possible to stay with my basic premise of being able to replace any component in my systems with in 5 minutes.



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