Analysis of the differences between nRF24L01 wireless data transmission modules
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nRF2401A is an improved model of nRF2401 (nRF2401AG is a lead-free process model). nRF2401A works in the 2.4GHz international ISM application-free frequency band with GFSK modulation for wireless data transmission. The maximum transmit power is 0dBm, the receive sensitivity is -90dBm, and it supports 124 receive frequencies and 126 transmit frequencies. Using ShockBurst transmission mode, it has two independent data receiving channels. It supports air data rates of 250kbps and 1Mbps. It uses SPI interface and MCU to complete data communication and communication control functions. nRF24L01 nRF24L01+(nRF24L01P) is an improved model of nRF24L01, which has the same wireless characteristics and operation mode as nRF24L01, and increases the air rate support of 250kbps. NRF24L01/NRF24L01+ is a new type of RF transceiver device produced by NordicVLSI of Norway. It adopts 4 mm×4 mmQFN20 package. NRF24L01/NRF24L01+ works in ISM frequency band: 2.4~2.524 GHz. It has built-in frequency synthesizer, power amplifier, crystal oscillator, modulator and other functions, and integrates enhanced ShockBurst technology. The address, output power and communication channel can be configured through the program, which is suitable for multi-machine communication. NRF24L01/NRF24L01+ has very low power consumption. When transmitting at a power of -6 dBm, the operating current is only 9 mA; while the corresponding receiver operating current is only 12.3 mA. Multiple low-power working modes (power-down mode and idle mode) make energy-saving design more convenient. The industry-leading low power consumption of NRF24L01/NRF24L01+ makes it particularly suitable for 2.4G applications powered by button batteries. The entire solution including link layer and MultiCeiver functions provides more functions and lower power consumption than the existing nRF24XX. Compared with the current Bluetooth technology, it provides higher speed while consuming less power. The newly adopted nRF24L01+ is compatible with nRF24L01 and adds 250kbps low-speed function. NRF24L01/NRF24L01+Basic characteristics Working voltage:1.9-3.6V Modulation mode: GFSK Maximum transmit power: 0dBm Maximum transmission rate:2Mbps Instantaneous maximum operating current: <15mA Working frequency: (2.400-2.524GHZ ==============================================1.Low voltage operation1.9-3.6V 2.Power consumption in power-down mode400nA 3.Power consumption in standby mode32uA 4.130us 5. With on-chip regulators, the peak current when receiving at 6.2Mbit/s is 12.5mA. The peak current when outputting at 7.2Mbit/s @ 0dBm is 11mA. 8. MultiCeiverMT hardware provides the function of 6 receivers at the same time, 2Mbit/s makes high-quality VoIP It is possible that the industry-leading low-power NRF24L01/NRF24L01+ is particularly suitable for 2.4G applications powered by button batteries. The entire solution, including the link layer and MultiCeiver functions, provides more functions and lower power consumption than the existing nRF24XX , Compared with the current Bluetooth technology , , it provides higher speeds while only consuming less power 9. Wide communication distance About 60 meters , Indoor About 30 meters TEL:18025394686/QQ2355573216 Guo R
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