You are not logged in. Your edit will be placed in a queue until it is peer reviewed.
We welcome edits that make the post easier to understand and more valuable for readers. Because community members review edits, please try to make the post substantially better than how you found it, for example, by fixing grammar or adding additional resources and hyperlinks.
Required fields*
-
Pro Micro uses the '32U4 processor? ww1.microchip.com/downloads/en/DeviceDoc/… Maximum Frequency – 8MHz at 2.7V - Industrial range – 16MHz at 4.5V - Industrial range - so you are operating out of spec with 16 MHz crysta;/resonator and 3.7V-4.2V LiPo battery. The '32U4 has a Selectable 2.56V ADC Reference Voltage, so you can use the Internal Aref voltage (vs the default External setting), divide down the battery voltage to be less than 2.56V max, and measure that way. Results may not be accurate if Vcc is < 5V with 16 Mhz clock.CrossRoads– CrossRoads2020年01月02日 14:03:59 +00:00Commented Jan 2, 2020 at 14:03
-
1But if I use a step up converter and a voltage divider I should be able to measure it? How do I have to wire it?Robbe– Robbe2020年01月02日 14:07:07 +00:00Commented Jan 2, 2020 at 14:07