Nrf24L01+Wireless Control - Waveshare AlphaBot User Manual

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AlphaBot User Manual

NRF24L01+wireless control

AlphaBot has a SPI interface which
can connect with the NRF24L01
module, a new RF transceiver. The
NRF24L01 has built-in frequency
synthesizer, a power amplifier, a
crystal oscillator and a modulator.
With enhanced ShockBurst
technology integrated, its address, output power and communication channel can
be configured by program, suitable for multiple machine communication. The
NRF24L01 has a ultra-low power consumption; when the transmitting power is
within -6dBm, its working current is only 9mA, and the working current of its
receiver is only 12.3mA. The NRF24L01 module also provides low power working
modes, such as power down mode and idle mode.
When using SPI interface to configure the NRF24L01 module, you should set the
module to Enhanced ShockBurstTM mode, enabling the module handle the RF
protocol automatically. Finished the configuration, the module is ready to work.
The switch between receive mode and transmission mode can be done by
changing the lowest byte of the command when the module is running.
The settings of the main parameters: Data width, declares the number of bit
occupied by the data in the RF data package, enabling the NRF24L01+ to make a
distinction between the data and the CRC code in the data package; Address width,
26