EnviroDIY | Jeff Horsburgh | Activity https://www.envirodiy.org/members/horsburgh/activity/ Activity feed for Jeff Horsburgh. Sat, 02 May 2026 01:19:29 -0400 https://buddypress.org/?v= en-US 30 hourly 2 00612099c46061cc39eec89360386c07 Jeff Horsburgh replied to the topic Precise analog voltage measurement using Arduino in the forum Other Data Loggers http://envirodiy.org/topic/precise-analog-voltage-measurement-using-arduino/#post-1608 Fri, 24 Jun 2016 18:25:10 -0400 Update!

I switched to a 12-bit ADC that I had laying around from another project (this one). You can supply it with a range of voltage up to about 5.5 V i think, but it has it’s own voltage reference. That cleaned up the noise I was getting, and I’m now getting voltage readings across the resistor in my current loop that put me very close -…[Read more]

]]> ce06ce33dcfc4dcdeb03183884869f79 Jeff Horsburgh replied to the topic Precise analog voltage measurement using Arduino in the forum Other Data Loggers http://envirodiy.org/topic/precise-analog-voltage-measurement-using-arduino/#post-1577 Tue, 21 Jun 2016 04:27:47 -0400 Thanks for the reply @neilh. The meters are commercial grade (read that as $$$$$), and USU will eventually work them into their building automation (SCADA) system. But, they don’t have it deployed yet in all the buildings and so I need a cheap way to collect high frequency data from the meters and get them on USU’s network until that happens -…[Read more]

]]> e584a40c16a455a921bea0cd445b78c1 Jeff Horsburgh started the topic Precise analog voltage measurement using Arduino in the forum Other Data Loggers http://envirodiy.org/topic/precise-analog-voltage-measurement-using-arduino/ Mon, 20 Jun 2016 04:00:40 -0400 I’ve been working on an application using the Arduino UNO Ethernet and the Adafruit Datalogger Shield for creating an Ethernet enabled datalogger for some water meters that I have recently installed in residential buildings on Utah State University’s campus. The output of the meters is a 4-20 mA current loop that requires a supply voltage of 12-24…[Read more]

]]> acd8bc72853b7bd9714d5ac8456552d3 Jeff Horsburgh became a registered member https://www.envirodiy.org/activity/p/1560/ Mon, 06 Jun 2016 15:45:42 -0400 0