Are there pins to power this board from some external source other than a USB-C cable? I read the tutorial and what documentation I could find so far but have not had any luck finding any reference to powering the board any other way.
I specifically was hoping to power it from a Battery Babysitter (PRT-13777) with a battery and solar panel.
If you’re using an unregulated supply like a battery connected to a Sunny Buddy, your only option would be powering through the USB connector.
BOB-12700 combined with a USB-A to USB-C cable like CAB-14743 would enable you to connect the Sunny Buddy’s output to the USB power input on the Weather Carrier Board.
TS-Chris:
If you’re using an unregulated supply like a battery connected to a Sunny Buddy, your only option would be powering through the USB connector.
BOB-12700 combined with a USB-A to USB-C cable like CAB-14743 would enable you to connect the Sunny Buddy’s output to the USB power input on the Weather Carrier Board.
jake1164:
Are there pins to power this board from some external source other than a USB-C cable? I read the tutorial and what documentation I could find so far but have not had any luck finding any reference to powering the board any other way.
I specifically was hoping to power it from a Battery Babysitter (PRT-13777) with a battery and solar panel.
Thanks,
J
Woah, I looked up that the cable you suggest, CAB-14743 https://www.sparkfun.com/products/14743, costs about $5 (4.95), but if I buy any other cable of that type from other suppliers I work with, like sourceme, will it work? Another option is to use Chinese cables - is that possible?
Since jake1164 is working with low power devices, any USB A - C cable will work, even a crappy Chinese one purchased from the gray market.
If you even want to use said cable elsewhere like on a real high speed USB-C device, you’re better off going with a higher quality (more expensive) cable from the get go so that you have options later. $5.00 really isn’t bad at all for a USB cable anyway and you’re still ahead vs buying a $2.00 cable then finding out you need a better quality cable later and needing to make a second purchase.
what is the dropout volt on the 5V regulator? Can it go down to the 3.7V min level of a LiPo?
**There isn't a 5 volt regulator on the board but there is a 3.3 volt regulator and the dropout on that is less than 0.5 volts. The data sheet for the regulator can be found [[here](https://www.diodes.com/assets/Datasheets/AP7361C.pdf).**
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**> 2. can you feed a 3.3V regulated voltage into one of the 3.3V and GND pins on the side of the board?**
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__**Yes, but cut the MEAS jumper on the edge of the board to the left of the reset button first.**__
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**> 3. what's the voltage range allowable on the USB 5V?**
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__**No more than 6 volts, the lower range hasn't been tested but is probably around 3.5 volts.**__
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**> 4. any idea of current draw?**
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__**Sadly, no. It would depend on a lot of factors that haven't been tested. You will need to measure current with the different peripherals enabled and operating to know for sure.** ](https://www.diodes.com/assets/Datasheets/AP7361C.pdf)__