Programming; Faq; Communication Range Is Too Short - Ebyte E18-MS1PA-PCB User Manual

Chengdu Ebyte Electronic Technology Co., Ltd.
 Assume that there are traces with large electromagnetic interference (high-frequency digital, high-frequency analog,
power traces) around the module that will greatly affect the performance of the module. It is recommended to stay
away from the module according to the strength of the interference.If necessary, appropriate isolation and shielding
can be done;
 If the communication line uses a 5V level, a 1k-5.1k resistor must be connected in series (not recommended, there is
still a risk of damage);
 Try to stay away from some physical layers such as TTL protocol at 2.4GHz , for example: USB3.0;
 The mounting structure of antenna has a great influence on the performance of the module. It is necessary to ensure
that the antenna is exposed, preferably vertically upward. When the module is mounted inside the case, use a good
antenna extension cable to extend the antenna to the outside;

The antenna must not be installed inside the metal case, which will cause the transmission distance to be greatly
weakened.

6.2 Programming

 The core of this module is CC2530, its driving method is completely equivalent to CC2530, the user can operate
according to the CC2530 chip manual (see CC2530 manual for details);
 It is recommended to use the Code Composer Studio (CCS) Integrated Development Environment (IDE).
 Code Composer Studio is an integrated development environment (IDE) that supports TI's microcontroller and
embedded processor products. Code Composer Studio includes a complete set of tools for developing and
debugging embedded applications. It includes the C/C++ compiler, source editor, project build environment,
debugger, descriptor, and many other features. The IDE provides a single user interface to help you through every
step of the application development process. Familiar tools and interfaces allow users to get started faster than ever
before. Code Composer Studio combines the benefits of the Eclipse software framework with TI's advanced
embedded debugging capabilities to provide embedded developers with a compelling, feature-rich development
environment.
★
When transmitting, set DIO_7 pin to high level and DIO_13, DIO_14 pins to low level;
★
When receiving, set DIO_7 pin to low level and DIO_13, DIO_14 pins to high level;
★
When receiving, set DIO_7 pin to low level and DIO_13, DIO_14 pins to high level;
 The register configuration can be reinitialized when the chip is idle for greater stability.

7 FAQ

7.1 Communication range is too short

 The communication distance will be affected when obstacle exists;
 Data lose rate will be affected by temperature, humidity and co-channel interference;
 The ground will absorb and reflect wireless radio wave, so the performance will be poor when testing near ground;
 Sea water has great ability in absorbing wireless radio wave, so performance will be poor when testing near the sea;

The signal will be affected when the antenna is near metal object or put in a metal case;

Power register was set incorrectly, air data rate is set as too high (the higher the air data rate, the shorter the
distance)；
 The power supply low voltage under room temperature is lower than recommended value, the lower the voltage, the
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E18-MS1PA1-PCB User Manual
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