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Chengdu Ebyte Electronic Technology Co.,Ltd.
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Chengdu Ebyte Electronic Technology Co. , Ltd.
serial port, and operate the control register and the transceiver buffer through the SPI command to complete the
wireless data transmit and receive function. For the timing operation of the module register read and write
operations, please refer to the latest nRF24L01P data sheet.
As interrupt pin for IRQ, it can be used to wake-up MCU and achieve fast response; But the user can get the
interrupt status through SPI (not recommended, it is not conducive to the overall power consumption, and with low
efficiency
)；
CE pin can be high level for long-term, but it needs to set as POWER DOWN mode when the module writes
registers, and it is recommended that CE is controlled by MCU pin
；
5. Basic application
5. 1 Basic circuit diagram
6.FAQ
6. 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 . 5 V, the lower the voltage, the lower the
transmitting power.
Due to antenna quality or poor matching between antenna and module.
E01-ML01IPX
User Manual
