Temperature sensor accuracy

Hi Nico,

If required, these types of boards are quite neat to act as a sort of semi-reference. The accuracy is claimed to be +- 0.1 degrees C within a certain range. I have an older model that claims +- 0.3 degrees C I think.

They can be accessed via Bluetooth on mobile, and can show historical data as well. Link: https://www.newark.com/sensirion/sht4x-smartgadget/ref-design-board-temp-humidity/dp/74AJ2003 

Thanks for pointing that out, that's really accurate!
That would solve the problem of which sensor to trust as a baseline.

A man with a watch knows what time it is. A man with two watches is never sure

I've added it to my wishlist

beacon_dave said:

Has someone been overdoing the rock picking recently perhaps ? 

Well, I DID overdo it the other day and have been too sore to continue haha ouch oops. But this is for the in-laws. We don't even own an ATV!!

Yesterday I was trying to bleed the brakes on his old truck (yeah I don't even do mechanics on my own vehicles anymore ), but all the bleeders are rusted in place except one. But it's a bit better. We noticed they were bad when we borrowed the truck a few days ago. Several months ago a brake line broke, so they replaced it and then never bled the air out!! I can't believe they left it like that! We told him to take it to the shop to get the bleeders replaced and get them to flush the fluid at the same time, so that's happening next week.

Seems as they get older (he's 84 now), they don't want to admit they can't do all the things they did when they were young, so they "start" the project and then "ask for help" which pretty much means we have to do it. We're slowly trying to get them to just take it to the professionals, but ugh, we often still get drawn into it.

I don't mind the occasional bit of tooling, and I guess it's a good skill to keep up

I just hope I make it to 84.   If I can do anything then, I'll feel victorious!

yep me too, and I hope I also have the kind of energy they have!

Project 14 theme - 'Help the Aged' 

Perhaps that's because they keep delegating the heavy tasks to others 

I am now the oldest surviving male in my family over the last three generations.

beacon_dave If we ever go that route, I've actually got an idea for a project.  That alone is unusual for me. 
I had better write it down - because we know in the moment... I'll for forget what the project was.

DAB Congratulations - sincerely.
My Dad was concerned about how long he would live.  His Dad died in his mid-fifties and he never knew his grandfather.
When he was in his early 60's, I reminded him that he was setting a new standard every day.
He lived to 83 - and a month.  Even in his last months, I would chastise him for chipping ice from his driveway.  "I gotta do something!", he would tell me.
"I get it, Dad.  Just do something else."

kmikemoo said:

I had better write it down - because we know in the moment... I'll for forget what the project was.

Just need a solution now to help remind you where you wrote it down...

shabaz said:

for instance having the sensor powered up will warm it, or if its on a board then other components or drafts will heat or cool it.

It's super windy just now...

And the sensors are both reporting a similar temperature now... the light blue line is the DHT sensor that is inside of a 3D printed housing and usually shows a few degrees warmer... maybe I need to rethink that setup!

I have ice cubes in the freezer that should be ready soon, so I can test the freezing point with both sensors.

shabaz said:

for instance having the sensor powered up will warm it, or if its on a board then other components or drafts will heat or cool it.

It's super windy just now...

And the sensors are both reporting a similar temperature now... the light blue line is the DHT sensor that is inside of a 3D printed housing and usually shows a few degrees warmer... maybe I need to rethink that setup!

I have ice cubes in the freezer that should be ready soon, so I can test the freezing point with both sensors.