It's fine for, say, powering an ESP8266 WiFi chip or XBee radio though, since the
current draw is 'spikey' & sporadic.
Measuring Battery
If you're running off of a battery, chances are you wanna know what the voltage is at!
That way you can tell when the battery needs recharging. LiPoly batteries are 'maxed
out' at 4.2V and stick around 3.7V for much of the battery life, then slowly sink down
to 3.2V or so before the protection circuitry cuts it off. By measuring the voltage you
can quickly tell when you're heading below 3.7V.
This board includes anMAX17048 Battery Monitor OR an LC709203F Battery Monitor
that reports the voltage and charge percent over I2C. (You will not have both.)
The MAX17048 battery monitor is available over I2C on address0x36.
On the ESP32-S3 only, there is a problem with the I2C implementation in
CircuitPython that causes the LC709203F to be unreadable. This issue is being
tracked at https://github.com/adafruit/circuitpython/issues/6311.
©Adafruit Industries Page 31 of 263
To Next Page
Loading...
Need help?
General
