Software Editing - Ebyte E01C-ML01SP2 User Manual

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The antenna must not be installed inside the metal case, which will cause the transmission distance to be greatly

weakened.
Conductors or other sources of interference should be avoided around the onboard PCB antenna.
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4.2 Software editing

The drive mode of this module SI24R1+PA+LNA is completely equivalent to SI24R1, and users can operate

according to the SI24R1 chip manual (see SI24R1 manual for details);
Power bin:
SI24R1 register setting table:
Address(Hex)
06
011：Pre-stage-0dBm, Output 20dBm；

010：Pre-stage-4dBm, Output 16dBm；
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011：Pre-stage-6dBm, Output 12dBm;
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000：Pre-stage-12dBm, Output 6dBm;
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IRQ is an interrupt pin, which can be used to wake up the microcontroller and achieve fast response; it can be

disconnected, and the interrupt status can be obtained by SPI query (not recommended, not conducive to overall
power consumption, and low efficiency);
CE can be connected to the high level for a long time, but the module must be set to POWER DOWN power-down

mode when writing the register. It is recommended that CE be controlled by the MCU pin;
The CE pin is connected to the LNA enable pin. When CE=1, the LNA is turned on, and when CE=0, the LNA is
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turned off. This operation is completely consistent with the transceiver mode of nRF24L01; that is, the user does not
need to care about LNA operation at all;
If the user needs to answer automatically, the CE pin must be kept high during the transmission process, and the

high level time cannot be longer than 10us as mentioned in the nRF24L01+ manual. 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.
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Mnemonic Bit
RF_SETUP
RF_PWR 2:0
Reset Value
RF configuration
110 Set TX power
111:7dBm
101:3dBm
011:0dBm
001:-6dBm
E01C-ML01SP2 User Manual
Description
110:4dBm
100:1dBm
010:-4dBm
000:-12dBm
7