Recommended Circuit Diagram; Hardware Design - Ebyte E30-400M30S User Manual

Chengdu Ebyte Electronic Technology Co.,Ltd
Manual
16 MISO
17 MOSI
18 SCK
19 nSEL
20 GND
21 ANT
22 GND

4 Recommended circuit diagram

5 Hardware design

It is recommended to use a DC stabilized power supply. The power supply ripple factor is as small as possible and 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 that between the recommended supply voltage, if exceeding the maximum, the

module will be permanently damaged;
Please check the stability of the power supply. Voltage can not fluctuate greatly and frequently;

When designing the power supply circuit for the module, it is often recommended to reserve more than 30% of the

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

parts with large electromagnetic interference;
Bottom Layer High-frequency digital routing, high-frequency analog routing, and power routing must be avoided under

Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
Output SPI master output slave input
Input SPI master input slave output
Input Serial Clock Input
Input SPI Chip select for starting SPI communication
Ground wire, connected to the power reference ground
Input/Output Antena
Ground wire, connected to the power reference ground
E30-400M30S （4463） User
7