NRF24L01 is a work in 2.4-2.5 GHz ISM band world-wide single-chip transceiver, wireless transceiver including: the frequency generator the mode controller schockbursttm enhanced crystal power amplifier power amplifier output modulator demodulator the selection of channels and protocol set by the SPI interface to set a very low power consumption, lower current consumption 12.3mA mode Power-down mode and standby mode when in power transmission mode with 6dBm emissions when the current consumption is 9.0mA acceptance model.
ball for ISM band open maximum 0dBm transmit power, license-free use. in the open 100 meters!
support six channels of data reception
(1) Low operating voltage: 1.9 ~~ 3.6V low-voltage
(2) high-rate: 2 Mbps, air transmission time is very short, reducing the collision phenomena wireless transmission (software configurations of 1 Mbps or 2 Mbps air transmission rate)
Multi-frequency points: 125 frequency points, to meet the multi-point communication and frequency hopping communication needs
4 ultra-compact: built-in 2.4GHz compact antenna 15x29mm (including antenna)
(5) Low power consumption: when in responsive communication mode, fast air transmission and start-up time reduces current consumption.
low application cost: NRF24L01 integrates the entire RF protocol high-speed signal processing section, such as: automatically resend lost packets and automatically generate a confirmation signal, etc. the SPL nRF24L01 interface can take advantage of the SPI hardware port or microcontroller microcontroller I / O port to simulate the internal FIFO can be used with a variety of low-speed microprocessor interface, easy to use low-cost microcontrollers.
7 facilitate the development: the link layer is fully integrated into the module, very easy to develop.refresh function automatic, automatic detection and retransmission of lost packets, retransmission time and retransmission number can be automatic non-controlled software received the storage packet is the auto-response response signal, upon receipt of a valid data set, the module automatically sends the fixed frequency response back-up without any signals Carrier Detection additional programming built-in hardware CRC error detection and point-to-counter error transmission of multipoint communication address control packets and carrier detection can be used for the frequency hopping set can also set six to receive channel address, may have a choose to receive open channel the standard Dip2.54MM pin spacing interfaces to apply s embedded.