Connection Instructions To The Emulator; Faq; Communication Range Is Too Short - Ebyte E72-2G4M05S1G User Manual

Chengdu Ebyte Electronic Technology Co.,Ltd.

4.3 Connection instructions to the emulator

TMS, TCK, reset, and ground need to be connected between the emulator and the module, and an additional 3.3V

power supply is required for the emulator;
Use USB to UART module to connect with module, module serial port and IO port are multiplexed, users can set

according to their own needs;
Please note that good grounding is required. When there is a large area of grounding, the power supply ripple is

small. Increase the filter capacitor and try to be close to the VCC and GND pins of the module.

5 FAQ

5.1 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 2.5V, the lower the voltage, the lower the

transmitting power;
Due to antenna quality or poor matching between antenna and module.

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E72-2G4M05S1G User Manual
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