Basic Operation; Hardware Design - Ebyte E48-433M20S User Manual

Chengdu Ebyte Electronic Technology Co.,Ltd.
10 GND
11 GND
12 GND
13 GPIO0
14 NIRQ
15 GPIO2
16 MISO
17 MOSI
18 SCLK
19 CSB
20 GND
21 ANT
22 GND

4 Basic operation

4.1 Hardware design

It is recommended to use DC voltage regulator power to supply the module, the power ripple coefficient is as

small as possible, and the module should be reliably grounded;
Please note the correct connection of the positive and negative poles of the power supply, which may cause

permanent damage to the module;
Please check the power supply to ensure that between the recommended supply voltage, exceeding the

maximum value will cause permanent damage to the module;
Please check the stability of the power supply, and the voltage cannot fluctuate substantially and frequently;

When designing power supply circuit for modules, it is often recommended to retain more than 30% allowance,

and the whole machine is conducive to long-term stable work;
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Ground wire, connected to the power supply reference site
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Ground wire, connected to the power supply reference site
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Ground wire, connected to the power supply reference site
DI/O Configurable multifunctional IO port (see CMT2310A manual for
details)
DI/O Configurable multifunctional IO port (see CMT2310A manual for
details)
DI/O Configurable multifunctional IO port (see CMT2310A manual for
details)
DO
Data output of the SPI
DI
Data input for the SPI
DI
The SPI clock pin
DI
Selection of the SPI access register
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Ground wire, connected to the power supply reference site
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Block RF stamp hole interface, equivalent impedance of about 50 Ω
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Ground wire, connected to the power supply reference site
E48-433M20S User Manual
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