EnviroDIY | jpeytonj | Activity https://www.envirodiy.org/members/jpeytonj/activity/ Activity feed for jpeytonj. Fri, 03 Apr 2026 20:03:56 -0400 https://buddypress.org/?v= en-US 30 hourly 2 c101c5d29d854c350192a2093805f4f0 jpeytonj replied to the topic Why is 12V power on Mayfly V1.1 (rev A) nominally only 11.3V? in the forum Mayfly Data Logger https://www.envirodiy.org/topic/why-is-12v-power-on-mayfly-v1-1-rev-a-nominally-only-11-3v/#post-18890 Mon, 10 Feb 2025 20:42:33 -0500 Wow!  Thank you again.

I am so impressed by your detailed, expert, and helpful response.

]]> c817052857f19cf54b7be067626443e4 jpeytonj replied to the topic Why is 12V power on Mayfly V1.1 (rev A) nominally only 11.3V? in the forum Mayfly Data Logger https://www.envirodiy.org/topic/why-is-12v-power-on-mayfly-v1-1-rev-a-nominally-only-11-3v/#post-18884 Fri, 07 Feb 2025 21:32:05 -0500 Thank you so much!

So just to be clear, there was no design change in the 12V boost from v1.1 Rev A to v1.1 Rev B, just a correction in the resistor used during manufacture?  Were any other aspects of the design changed at this time?

If so, maybe it would be helpful to add some Rev B documentation to the “Changes” list shown on this page: https:/…[Read more]

]]> c4902b1220f0f19daa34656e6552cb85 jpeytonj started the topic Why is 12V power on Mayfly V1.1 (rev A) nominally only 11.3V? in the forum Mayfly Data Logger https://www.envirodiy.org/topic/why-is-12v-power-on-mayfly-v1-1-rev-a-nominally-only-11-3v/ Fri, 07 Feb 2025 15:57:01 -0500 Hello there,

 

I have a question about the 12V power on Mayfly V1.1.  Among the changes listed in the rev A design (https://www.envirodiy.org/mayfly/hardware/details-and-specs/) it states that the “12v boost circuit… can now source up to 100mA, although the nominal output voltage is ~11.3v”.

 

I am curious why the nominal output is 11.3…[Read more]

]]> 8bcf9a567b6b419cc44c9c848319c5ac jpeytonj became a registered member https://www.envirodiy.org/activity/p/10479/ Fri, 07 Feb 2025 14:53:52 -0500 0