EnviroDIY | Jrmichler | Activity https://www.envirodiy.org/members/jrmichler/activity/ Activity feed for Jrmichler. Fri, 03 Apr 2026 20:03:56 -0400 https://buddypress.org/?v= en-US 30 hourly 2 f789d4f5d90a18c6f92be96c2de9ce1d Jrmichler replied to the topic Mayfly 16 bit ADC errors in the forum Mayfly Data Logger https://www.envirodiy.org/topic/mayfly-16-bit-adc-errors/#post-14101 Mon, 27 Apr 2020 23:05:57 -0400 Finally got back to this project…

The 6AA battery pack is wired to the “Ext 4-12V” solder pads.  The voltage divider consists of a 989K resistor soldered to the battery positive lead, connected to a 324K resistor, which is connected to Pin 20 (GND).  The connection between the two resistors is connected to both Pins 2 and 7.  I attached a sch…[Read more]

]]> ad88e64ae4f50df9d3f18e0498514203 Jrmichler started the topic Mayfly 16 bit ADC errors in the forum Mayfly Data Logger https://www.envirodiy.org/topic/mayfly-16-bit-adc-errors/ Mon, 20 Apr 2020 19:53:37 -0400 I am learning how to use a Mayfly.  I will be using two of the 10 bit ADC’s and one 16 bit ADC to start.  My application is best met by powering with a 6AA battery pack, so I started by measuring the battery voltage.  I wired a voltage divider with a 1 Meg resistor in series with a 330K resistor.  The divider is connected to both Pins 2 and 7, so…[Read more]

]]> df9eb684c9afd7e610d088bd0586fd8c Jrmichler became a registered member https://www.envirodiy.org/activity/p/5152/ Mon, 20 Apr 2020 19:28:32 -0400 0