EnviroDIY | Jeremy Hise | Activity https://www.envirodiy.org/members/jeremyhise/activity/ Activity feed for Jeremy Hise. Fri, 01 May 2026 06:38:24 -0400 https://buddypress.org/?v= en-US 30 hourly 2 fc990f58077ee9944aecbaadd23684e8 Jeremy Hise posted a new activity comment https://www.envirodiy.org/activity/p/2935/#acomment-2936 Thu, 04 Jan 2018 14:01:06 -0500 Hey Guy,

I am relatively new to this but have solved a few problems. I can’t really answer your question because I feel like the science objectives would really need to drive the sensor selection. If you are looking to reach a broad audience, then I guess I would go with some generally applicable environmental sensors such as temp/soil…[Read more]

In reply to - Guy McCarthy posted an update in the group Data Logger Developers I’m developing a couple of inexpensive data loggers (open source, of course) and looking for some input on sensors. What types are commonly used, […] ]]> 9d7dd3c3d570ea8e88fbc0db0d474be5 Jeremy Hise posted a new activity comment https://www.envirodiy.org/activity/p/2031/#acomment-2062 Mon, 09 Jan 2017 15:13:13 -0500 Neil this has been such a great conversation. Thank you.

I don’t understand the scale of 16. Could you elaborate or point me to a reference. I’m having a hard time googling that one. This sensor is a “cheaper” version of one that is in the field being used exactly for this purpose. That sensor has a temp. coefficient of +-400 ppm/K. This seems to…[Read more]

In reply to - Jeremy Hise posted an update in the group Datalogger developers Hi all, I’m pretty new to data logger development but have certainly gotten my feet wet. A project I am currently involved in requires measuring tiny […] ]]> b976fac554b003352613008f8398e2fa Jeremy Hise posted a new activity comment https://www.envirodiy.org/activity/p/2031/#acomment-2049 Sat, 07 Jan 2017 14:48:06 -0500 Those are some great questions. Tree water/soil/atmospheric relations is where a lot of this work is pointed. Some species, like the Picea abies, can swell up to 0.006 mm in a 24 hour period, others less so, so I’m looking to detect changes within the 0.000-0.006mm range.

Generally speaking, would one start with identifying noise at the power…[Read more]

In reply to - Jeremy Hise posted an update in the group Datalogger developers Hi all, I’m pretty new to data logger development but have certainly gotten my feet wet. A project I am currently involved in requires measuring tiny […] ]]> e6d4dc7892990c0cb236ffb791d7cd54 Jeremy Hise posted a new activity comment https://www.envirodiy.org/activity/p/2031/#acomment-2042 Sat, 07 Jan 2017 02:05:57 -0500 Wow some great info. Thank you very much and I will check out the your blog as it seems this career path will be heavily involved in these kinds of problems. The design is straight forward, a Li-Polymer battery, arduino pro mini with the ADS1115, xbee series 2 and a Midori Precisions linear sensor…essential a variable resistor up to 1K. Trees…[Read more]

In reply to - Jeremy Hise posted an update in the group Datalogger developers Hi all, I’m pretty new to data logger development but have certainly gotten my feet wet. A project I am currently involved in requires measuring tiny […] ]]> 264aa765fe9862b6041c43f72876fcea Jeremy Hise posted an update in the group Datalogger developers: Hi all, I'm pretty new to data logger development but have […] https://www.envirodiy.org/activity/p/2031/ Thu, 05 Jan 2017 14:10:50 -0500 Hi all, I’m pretty new to data logger development but have certainly gotten my feet wet. A project I am currently involved in requires measuring tiny changes in tree stem growth. So tiny, in fact, I believe I have to deal with signal noise from my power source/14 bit ADC. I know I can apply some statistical methods (ie. averaging with…[Read more]

]]> 8 0ae17e6eea194bb675e279bd92baff58 Jeremy Hise became a registered member https://www.envirodiy.org/activity/p/2022/ Tue, 03 Jan 2017 23:48:43 -0500 0