PalmSens EmStat4M, Руководство пользователя

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The EmStat4M Development board can be powered from 3 sources selectable with SW10:
Figure 8 - SW10 on the development board
When an EmStat4 HR is installed, the maximum current drawn from the USB port will exceed
500mA when using the 100 mA range. Use a Y-cable to split the total current into 2 USB ports
or make sure the port can handle current up to 900mA.
The JST PH2 connector (CON10) is suitable for Adafruit batteries like
https://www.adafruit.com/product/328 or https://www.adafruit.com/product/2011
It is recommended to use a battery capacity of 2000mAh or more.
The battery is charged when the Development board is connected via CON8 (Micro USB).
The charge current is set to ~150mA, a 2000mAh battery may take 10 to 14 hours to be
completely charged. The charge current can be changed by changing the value of R31
See the datasheet of IC8 for detailed information:
https://www.analog.com/media/en/technical-documentation/data-sheets/4053-4.2fs.pdf
In case an Arduino MKR board is connected to the bottom side of the development board, all
boards can be powered by a single USB connection to the Arduino. This can be done by setting
SW10 to OFF and connecting the Arduino board via a micro-USB cable to the PC or other USB
power source.