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45Instructables6,606,338Views1,443CommentsINDIAJoined December 8th, 2012
I am an Electrical Engineer. I love to harvest Solar Energy and make things by recycling old stuff. I believe, IF YOU TRY YOU MIGHT, IF YOU DON'T YOU WON'T. www.opengreenenergy.com

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  • Solar Powered WiFi Weather Station

    Hi friend,Recently I made some changes in the schematic to monitor the battery voltage.Another change in the schematic is use of 18650 battery instead of 14450 battery.I have one doubt, In the TP4056 board, Out- and Bat- are not connected with each other.The Out- is connected to to Wemos GND, so if I want to monitor the battery voltage,where should be the voltage divider GND connected ?As the Wemos board have one inbuilt voltage divider ( 100k, 220k), I am just adding one more 100K resistor to compatible with maximum battery voltage (4.2V). I am attaching the schematic.If any changes is required, please suggest me.Once the schematic will be finalized, I will order the PCB.Thanks !

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