Ebyte EoRa PI, Руководство пользователя

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Chengdu Ebyte Electronic Technology Co., Ltd
EoRa PI
User Manual
Copyright ©2012-2023, Chengdu Ebyte Electronic Technology
Co., Ltd 15
4.5 Battery charging
 The battery can be charged via the TYPE-C connector, the LED will always light up red to indicate when charging,
and when full the LED will always light up green to indicate.

When the TYPE-C port is turned on, the charging circuit will be passed through, so the current of the whole
machine to enter the hibernation state is still maintained at a high level (500uA~1mA or so), and the
hibernation current needs to be measured when the battery is turned on.
 Connecting the battery and not connecting the TPYE-C interface, the power consumption with the power off
is around 5 uA. If the power is turned on and all peripherals are in sleep mode, the power consumption of
the whole machine is around 25 uA.

The battery is designed for a maximum charging current of 500mA, please ensure that the power supply capacity
is sufficient.
Chapter 5 Hardware Design

It is recommended that the module be powered by a DC regulated power supply with as low a ripple factor as
possible, and that the module be reliably grounded;

Please pay attention to the correct connection of the positive and negative terminals of the power supply,
such as reverse connection may lead to permanent damage to the module;
 Please check the power supply to ensure that it is between the recommended supply voltages, exceeding the
maximum value can cause permanent damage to the module;
 Please check the stability of the power supply, the voltage should not fluctuate significantly and frequently;

When designing power supply circuits for modules, it is often recommended to keep more than 30% of the margin,
with the whole machine is conducive to long-term stable operation;
 Modules should be kept as far away as possible from power supplies, transformers, high-frequency alignments,
and other parts with high electromagnetic interference;
 High-frequency digital routing, high-frequency analog routing, power supply routing must be avoided below
the module, if you really have to go through the module below, assuming that the module is soldered in the
Top Layer, in the contact part of the module in the Top Layer laying copper (all laying copper and good