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wemos / D1_mini_Examples

WeMos D1 & D1 mini Arduino Examples
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Can I use a 3.3V LiPo battery to provide power to the board? #20

Open pb-dyim opened 8 years ago

pb-dyim commented 8 years ago

I know I can use 5V from the USB, but can I use a 3.3V LiPo battery and do I plug this into the 3.3V/GND?

TheAustrian commented 8 years ago

Yes, you can do that as you described (3.3V and GND) for the lower voltage LiPo batteries since the ESP8266's supply voltage range is 3.0V to 3.6V.

If you use standard lithium ion batteries that have 3.7-4.2V, it's better to connect them to the 5V pin, since that is connected to an LDO converter.

pb-dyim commented 8 years ago

What is the voltage drop of the VDO if I connect to the 5v?

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-------- Original message -------- From: TheAustrian notifications@github.com Date: 7/3/2016 8:53 AM (GMT-06:00) To: wemos/D1_mini_Examples D1_mini_Examples@noreply.github.com Cc: David Yim dyim@pacificbiosciences.com, Author author@noreply.github.com Subject: Re: [wemos/D1_mini_Examples] Can I use a 3.3V LiPo battery to provide power to the board? (#20)

Yes, you can do that as you described (3.3V and GND) for the lower voltage LiPo batteries since the ESP8266's supply voltage range is 3.0V to 3.6V.

If you use standard lithium ion batteries that have 3.7-4.2V, it's better to connect them to the 5V pin, since that is connected to an LDO converter.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHubhttps://github.com/wemos/D1_mini_Examples/issues/20#issuecomment-230154555, or mute the threadhttps://github.com/notifications/unsubscribe/ADN3DADDJc_C6uvsSqmldAqa8Hgt9xYrks5qR77JgaJpZM4JD3t8.

TheAustrian commented 8 years ago

It's an RT9013, if the schematics are still correct, so a maximum of 250mV.

pb-dyim commented 8 years ago

Thanks. That works for me! I can't wait to get them in the mail.

Sent via the Samsung Galaxy Note® 4, an AT&T 4G LTE smartphone

-------- Original message -------- From: TheAustrian notifications@github.com Date: 7/3/2016 9:45 AM (GMT-06:00) To: wemos/D1_mini_Examples D1_mini_Examples@noreply.github.com Cc: David Yim dyim@pacificbiosciences.com, Author author@noreply.github.com Subject: Re: [wemos/D1_mini_Examples] Can I use a 3.3V LiPo battery to provide power to the board? (#20)

It's an RT9013, if the schematicshttp://www.wemos.cc/Products/images/d1_mini.pdf are still correct, so 250mV.

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