Hello!
I have here one of the devices described in the title. I see on it six locations and of them, two are marked for power. That is one is for 3.3v and one for Ground. I guess what I am askling is can this device be powered straight from one regular LiPo battery at 3.7v without any problems.
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Gregg
NO… that needs to be steady 3v3.In the hookup guide (https://learn.sparkfun.com/tutorials/sp … e-overview), it shows where to add a lipo battery on the back of the board.
Hello!paulvha:
NO… that needs to be steady 3v3.In the hookup guide (https://learn.sparkfun.com/tutorials/sp … e-overview), it shows where to add a lipo battery on the back of the board.
I see that the selected power connector is shown as retired. I imagine there’s a replacement available. But what about applying power via that location via a of ordinary cells such as a pair of Double A type ones instead? And yes of course I did see the power connections on the back of the device.
This is the connector you’re looking for.
YellowDog:
This is the connector you’re looking for.
Hello!
I see that of course. But my question still stands.
YellowDog:
This is the connector you’re looking for.
Hello!
Let me amend my comments, it is possible for example to run an ESP8266 device on a single CR2032 battery, for an appropriate amount of time, say two weeks if the device is programmed to sleep between bursts of delivered information. Therefore is it possilbe to use one to power the device directly? And not by using the same connectors as the LiPo batteries?
The SparkFun Qwiic Micro operates at 3.3 volts which makes it ideal for the Qwiic eco-system. Power can be supplied to the SparkFun Qwiic Micro through micro-USB. It is also possible to supply power through the through holes labeled 3V3 and GND located in the lower right hand section of the board.
It will probably work fine at 3.0 volts from a coin cell but I don’t think a coin cell will last 2 weeks. You will need to figure out how much current the assembly uses when in sleep and calculate how long a CR2032 will last. AA (or larger) batteries might be a better choice.
YellowDog:
The SparkFun Qwiic Micro operates at 3.3 volts which makes it ideal for the Qwiic eco-system. Power can be supplied to the SparkFun Qwiic Micro through micro-USB. It is also possible to supply power through the through holes labeled 3V3 and GND located in the lower right hand section of the board.It will probably work fine at 3.0 volts from a coin cell but I don’t think a coin cell will last 2 weeks. You will need to figure out how much current the assembly uses when in sleep and calculate how long a CR2032 will last. AA (or larger) batteries might be a better choice.
Hello!
Thank you. I probably won’t be using a CR2032 one except for testing. Please remember that I chose that figure based on a lucky individual’s efforts to build stuff around the ESP8266 for various purposes, none of appropriate here. I’ll know more of course when I start my tests of course. And will report back of course.