Basic Application - Ebyte E01C-ML01SP4 User Manual

Chengdu Ebyte Electronic Technology Co.,Ltd.
Power step:

SI24R1Register setting table：
Address(Hex)
06
011：Front 0dBm, output 20dBm;

010：Front -4dBm，output 17dBm；

011：Front -6dBm，output 14dBm;

000：Front -12dBm，output 8dBm;

IRQ is an interrupt pin. It is used to wake up the microcontroller and achieve fast response; users can leave it

unconnected and use SPI to query the interrupt status (not recommended, not conducive to overall power
consumption, low efficiency);
CE can be connected to high level for a long time, but the module must be set to POWER DOWN power-

down mode when writing to the register. It is recommended that CE be controlled by MCU pin.
The CE pin is connected to the LNA enable pin. When CE=1, LNA is turned on, and when CE=0, LNA is

turned off. This operation is completely consistent with the transceiver mode of nRF24L01; in other words,
the user does not need to care about LNA operation at all;
If the user needs to answer automatically, the CE pin must remain high during transmission. The correct

operation is: CE=1 to trigger the transmission. After knowing that the transmission is completed, CE=0,
instead of CE=0 after 10us. The reason is: After SI24R1 is sent, it will immediately switch to receiving mode.
At this time, if CE= 0, the LNA has been turned off, which is not conducive to receiving sensitivity.

5 Basic application

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Mnemonic Bit
RF_SETUP
RF_PWR 2:0
Reset Value
Rf configuration
TX transmitting power
111:7dBm
110 101:3dBm
011:0dBm
001:-6dBm
E01C-ML01SP4 User Manual
Description
110:4dBm
100:1dBm
010:-4dBm
000:-12dBm
7