Basic Operation; Hardware Design - Ebyte E01-2G4M01S1B User Manual

Chengdu Ebyte Electronic Technology Co.,Ltd
Pin No. Pin item
1
2
3
4
5 MOSI
6 MISO
7
8
9
10

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 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

maximum value the module will be permanently damaged；
Please check the stability of the power supply, the voltage cannot be fluctuated 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.；
High-frequency digital routing, high-frequency analog routing, and power routing must be avoided under the

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 or other layers, which will affect the module's spurs and receiving sensitivity to varying degrees；
Copyright ©2012–2018, Chengdu Ebyte Electronic Technology Co.,Ltd
Pin direction
VCC Power supply
CE Input
CSN Input
SCK Input
Input
Output
IRQ Output
GND
GND
GND
2.0 ~ 3.6V
Module control pin
Chip select pin for starting new SPI communication
SPI clock pin
SPI data input pin
SPI data output pin
Interrupt request，valid in low level
Ground, connected to power reference ground
Ground, connected to power reference ground
Ground, connected to power reference ground
E01-2G4M01S1B User Manual
Application
1-5