[time-nuts] Temperature (environmental) sensors
bg at lysator.liu.se
Tue Jan 3 14:32:08 EST 2017
I like the Bosch BME280 conneced to a Raspberry PI.
Sent from my smartphone.
-------- Original message --------From: Bob Camp <kb8tq at n1k.org> Date: 03/01/2017 19:36 (GMT+01:00) To: Discussion of precise time and frequency measurement <time-nuts at febo.com> Subject: Re: [time-nuts] Temperature (environmental) sensors
There’s always the “cool factor” of higher resolution. Apparently it’s not enough
of a issue to make it a worthwhile market to serve.
Based on what has been tossed around, it sounds like an Arduino with some
bits plugged in is the low cost leader. 3D print up and enclosure and you have
it all in a some large form factor.
> On Jan 3, 2017, at 12:54 PM, jimlux <jimlux at earthlink.net> wrote:
> On 1/3/17 9:15 AM, Bob Camp wrote:
>> There is an ever increasing pool of good sensors to put into something like this.
>> (More so for temperature and pressure. Humidity still is a bit of an issue.)
>> There’s not a lot to interface between the sensor and a USB “chip”. It’s surprising
>> that there aren’t more cheap / high accuracy choices out there.
> the market probably isn't there for a cheap "pod" with an interface and high accuracy..
> The Lascar units (and similar $100-ish ones from others) meet most of the existing need fairly well (e.g. monitoring the temperature of your freezer for FDA regulatory compliance, monitoring the temp and humidity in your ESD controlled space)..
> The need for 0.1 degree C room temp measurement is, I think, fairly limited
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