https://www.envirodiy.org/members/suketunaik/activity/ Activity feed for suketunaik. Thu, 23 Apr 2026 19:38:32 -0400 https://buddypress.org/?v= en-US 30 hourly 2 e00d323f1fae2c8af25155174a6af4a5 https://envirodiy.org/topic/charging-6600-mah-li-ion-battery-with-3-5w-solar-panel/#post-12252 Fri, 20 Apr 2018 15:42:36 -0400 That was very helpful and informative reply. I did see that the yellow LED doesn’t quite go out but faints (equivalent of ‘off’) after charging
the battery using microUSB cable. It took almost 12 hours which is what I originally figured. For anyone who comes across this thread in future, a word of advice: choose your battery wisely. You may not…[Read more]

]]> 96d46fa3e06abb104ebad46e9063d8bc https://envirodiy.org/topic/charging-6600-mah-li-ion-battery-with-3-5w-solar-panel/#post-12245 Wed, 18 Apr 2018 22:13:24 -0400 And on the related note,
am I correct in assuming that solar panel will charge the battery even if I leave Mayfly in off mode?
In other words, I don’t need to turn on the Mayfly and then wait for the battery to be charged over the entire day. Is that correct?

]]> 47707d7e4aadde1a2878a308a9c05268 https://envirodiy.org/topic/charging-6600-mah-li-ion-battery-with-3-5w-solar-panel/ Wed, 18 Apr 2018 22:10:30 -0400 I have a stupid question for Shannon or anyone who knows Mayfly better than me.
I have a 3.5W 6W solar panel from Voltaic. I am charging 3.7V 6600mAh Li-ion battery with it.
Voltaic specs say that the panel can output peak current of 550mA. This brings my battery charging
time to 12 hours. Now what I would like know is, how do I make sure that the…[Read more]

]]> e4347491cc88bed58c3cfd87fe27d99a https://www.envirodiy.org/activity/p/3146/#acomment-3150 Fri, 13 Apr 2018 02:37:20 -0400 yes, I have been using Atlas Scientific sensors. They have very good customer support. Always willing to help.
I have duplicated my setup and now have three separate sensor sites all loaded with Atlas sensors. Make sure to use EZO carrier boards, sensor circuits, and the probes-all from Atlas. Call them up-they will explain all to you in detail.…[Read more]

In reply to - kenve posted an update @suketunaik Have you discovered any sensors for pH, Temp, DO, and Conductivity since your post last year? ]]> 7d2d8e16e59fbf64de7a9b7dcf3f42ad https://envirodiy.org/topic/low-cost-ambient-water-quality-sensors/#post-2276 Tue, 11 Jul 2017 12:59:35 -0400 Shannon, Thanks for your reply.
I am interested in measuring pH, Temp., DO, and Conductivity. What do you recommend?
Also, I just noticed on your blog that the latest version of Mayfly accepts 12 V power.
This is perfect since a lot of medium/higher grade sensor sondes work off of 12 V. The question
I have is whether Mayfly will enable sleep…[Read more]

]]> 6c3ffc747045acc2f26b81b1e79a538b https://envirodiy.org/topic/low-cost-ambient-water-quality-sensors/#post-2263 Wed, 28 Jun 2017 13:07:03 -0400 Hello Shannon,
I am responding to your post from a year ago. I have been working on an interface that can take 12 V from a solar panel, run the 4-20mA sensors, convert the 12 V to 3.7 V to run Mayfly and sensor interface circuits. I have located one vendor (Global Water) that sells 4-20mA sensors at a low price but I would like to go through more…[Read more]

]]> 6b9a40c53760c9748b37697ead14868b http://envirodiy.org/topic/low-cost-ambient-water-quality-sensors/ Sat, 28 May 2016 15:20:25 -0400 Hello all, I would like to deploy minimum of 4 water quality sensors such as temperature, pH, specific conductance, and dissolved oxygen. are there any low cost sensors that can be used with the Mayfly board that anyone is aware of?
Thank you very much for your help.

]]> 6be2d4db44b2e92a0a80bf4384a121c8 https://www.envirodiy.org/activity/p/1544/ Sat, 28 May 2016 15:17:05 -0400 0