I just checked RAK’s little solar panel with a multimeter, and in the late afternoon (16:30) sun the voltage showed as 5.6-5.8v. I haven’t used it yet - I’m concerned about connecting it to a rak19007 with a 4631, as the datasheet specifies up to 5.5v.
Am I safe using this with my wisblock? Thank you
Good night,
Take a look in this post: low grounding current regulator
They have a good conversation about how the regulator is designed.
Claudio
Same as we answered in Concerns with 150x100x45mm solar enclosure voltage
You are good to use it. There is a Zener diode on the base board to limit the voltage. The 5.5V in the documentation is just an “over-protective” limit.
But it should be not more than 7V or the Zener diode might get to its limits.
Thank you, testing now!