Chengdu Ebyte Electronic Technology Co.,Ltd.
E104-BT12NSP User Manual
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Chengdu Ebyte Electronic Technology Co.,Ltd.
8
Modules should be kept as far away as possible from large parts of electromagnetic interference such as power
supply, transformers, high frequency walkers, etc.
High frequency digital, high frequency analogue and power lines must be avoided under the module. If we have to
go under the module, suppose that the module is welded to Top Layer and copper laid on the contact part of the
module (all copper laid and well grounded), we must go near the module digital part and follow the wire on Botom
Layer.
Assuming that modules are welded or placed in Top Layers, random paths in Botom Layers or other layers are also
wrong, affecting the stray and reception sensitivity of modules to varying degrees;
Assuming that there is a large amount of electromagnetic interference around the module, the performance of the
module can be greatly affected. According to the intensity of the interference, it is recommended to stay away from
the module.
Assuming that there are large electromagnetic interference lines around the module (high frequency digital, high
frequency analog, power supply) can also greatly affect the module's performance.
Keep away from the 2.4 GHz TTL protocol in some physical layers, e.g. USB 3.0;
The module must not be mounted inside the metal housing, which will greatly weaken the transmission distance.
3.2 Basic Circuit
