Chengdu Ebyte Electronic Technology Co., Ltd.
E22-230T22S User manual
Copyright ©2012–2020，Chengdu Ebyte Electronic Technology Co.,Ltd.
24
Network ID: 0-255
Key: 0-65535
When the user configures the repeater mode using the host computer, special attention must be paid. Since
the parameters are in decimal mode in the host computer, the module address and network ID need to be
converted into hexadecimal. For example, if the network ID input by the transmitting end A is 02, and the
network ID input by the receiving end B is 10, when the repeater end R sets the module address, the
hexadecimal value 0X020A is converted into the decimal value 522 as the repeater end R. Module address.
That is, the module address value of the repeater terminal R is 522 at this time.
10 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 can not 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
