Basic Operation; Hardware Design - Ebyte E10-915MS30 User Manual

915mhz 1w smd wireless module

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Table Of Contents

Table of Contents

Chengdu Ebyte Electronic Technology Co., Ltd.

4. Basic operation

4.1 Hardware design

It is recommended to use a DC stabilized power supply. The power supply ripple factor is as small as possible, and

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the module needs to be reliably grounded.；

Please pay attention to the correct connection of the positive and negative poles of the power supply. Reverse



connection may cause permanent damage to the module；

Please check the power supply to ensure it is within the recommended voltage otherwise when it exceeds the

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maximum value the module will be permanently damaged；

Please check the stability of the power supply, the voltage can not be fluctuated frequently；

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When designing the power supply circuit for the module, it is often recommended to reserve more than 30% of the

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margin, so the whole machine is beneficial for long-term stable operation.；

The module should be as far away as possible from the power supply, transformers, high-frequency wiring and other

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parts with large electromagnetic interference.；

High-frequency digital routing, high-frequency analog routing, and power routing must be avoided under the

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module. If it is necessary to pass through the module, assume that the module is soldered to the Top Layer, and the

copper is spread on the Top Layer of the module contact part(well grounded), it must be close to the digital part of

the module and routed in the Bottom Layer；

Assuming the module is soldered or placed over the Top Layer, it is wrong to randomly route over the Bottom Layer

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or other layers, which will affect the module's spurs and receiving sensitivity to varying degrees；

It is assumed that there are devices with large electromagnetic interference around the module that will greatly



affect the performance. It is recommended to keep them away from the module according to the strength of the

interference. If necessary, appropriate isolation and shielding can be done；

Assume that there are traces with large electromagnetic interference (high-frequency digital, high-frequency analog,

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power traces) around the module that will greatly affect the performance of the module. It is recommended to stay

away from the module according to the strength of the interference.If necessary, appropriate isolation and shielding

can be done.

If the communication line uses a 5V level, a 1k-5.1k resistor must be connected in series (not recommended, there is

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IRQ

Output

Module interrupt pin

GPIO1

Output

Module data output pin (refer to SI4463 datasheet)

GPIO0

Output

Module data output pin (refer to SI4463 datasheet)

Power supply must be 5.0 ~ 5.5V DC (voltage higher than 6V is

VCC

forbidden)

GND