1wire extra temperature probes Parasitic (unpowered) or powered? - Advice please

I’ve got some more 1 wire temperature probes along with a hub and power injector from Sheepwalk Electronics in the UK (excellent service by the way) and have got one temp probe working OK in WD in unpowered mode alongside my normal VP2 configuration. I am planning to use 2 probes - one for grass temperature and the other for soil both about 5-10m away from the hub & assume it would be best to operate these in powered mode using a power injector. Does that sound right or would they work so far away in unpowered mode? Also the cable I’ve got going from inside to outside isn’t twisted pair - would that matter?
Any hints gratefully received. Thanks Gareth.

Sorry, can’t help you but I am interested in those as well.
Couldn’t find them on their website.
Do you have a link to those items or pictures of them, perhaps?

TIA

Please try this link - the SWE5 Basic Power Injector
http://www.sheepwalkelectronics.co.uk/product_info.php?products_id=61
If that doesn’t work just google SWE5 Sheepwalk Electronics
Their products seem very good - I have no connection just a satisfied customer.
Cheers
Gareth


hi

the 1 wire extra temperature sensor does not need a powered adaptor
as they use the data line for the power

if you add a humidity sensor, l would use a power adaptor
which is set to use 5vdc line

the hobby boards power module as 12dc and 5vd and a output
line which is unregulated

1 wire cable colour code
[http://www.weather-above.com/wiring diagram.html](http://www.weather-above.com/wiring diagram.html)

some information have a look

[http://www.weather-above.com/1 Wire add ons.html](http://www.weather-above.com/1 Wire add ons.html)

hope this helps
mick

Excellent news! Thanks for the info - I’ll try it without any extra power.
Cheers
Gareth :smiley: