The Introduction of Wireless Chip NRF905 NRF2401 CC1100
Basic features of the chip NRF905:
1. Receiving and sending functions are combined, sending and receiving complete interrupt flag
2. 433/868/915 working frequency band, 433MHZ open ISM band can be used without permission
3. With the highest transmission rate of 50KBPS and 10dbm transmit power, the effective communication distance of the external whip antenna is about 300 meters.
4. Indoor communication has a good communication effect, effective communication can be realized between layers, and the anti-interference performance is strong, and the strong interference barrier performance is greatly impaired.
5. Up to 32 bytes can be sent and received in a single transmission, and the send/receive buffer size 2/4/8/16/32 bytes can be set by software
6. With 170 channels, multi-point network communication can be realized, combined with TDMA-CDMA-FDMA principle to realize wireless network communication.
7. Built-in hardware 8/16-bit CRC check, data transmission can be stable, reducing system development difficulty.
8. 1.9-3.6V operation, low power consumption, standby mode is only 2.5uA.
9. Built-in SPI interface, the maximum SPI clock can be large 10M, but also through the I / O analog port SPI.
NewMsg_RF905 series module application field:
Vehicle monitoring, remote control, telemetry, small wireless networks, wireless meter reading, access control systems, cell paging, industrial data collection systems, wireless tags, identification, contactless RF smart cards, small wireless data terminals, security fire protection systems, wireless remote control systems, Biological signal acquisition, hydro-meteorological monitoring, robot control, wireless 232 data communication, wireless 485/422 data communication, etc.
Basic features of the chip NRF2401A:
1.2.4Ghz Global open ISM band license-free use;
2. Maximum operating speed 1Mbps, high efficiency GFSK modulation, strong anti-interference ability, suitable for industrial control applications;
3.125 channels to meet the needs of multi-point network communications;
4. Built-in hardware 8/16-bit CRC check and point-to-multipoint communication address control, combined with TDMA-CDMA-FDMA principle, can achieve wireless network communication. ;
5. Low power consumption 1.9 - 3.6V operation, standby mode status is only 1uA;
6. The module can set the address by software. Only when the local address is received, the data will be output (the interrupt indication will be provided). It can be directly used by various single-chip microcomputers, and the software programming is very convenient.
7. Send and receive complete interrupt flag, can send 28 bytes at most;
8. Built-in special voltage regulator circuit, using a variety of power supplies including DC / DC switching power supply have a good communication effect;
9. CLK, DATA, DR three-wire interface, software programming simple.
10. Dual-channel data reception, built-in loop antenna, open and interference-free conditions, communication distance is about 100 meters.
NewMsg_RF2401 series module application field:
Vehicle monitoring, remote control, telemetry, small wireless networks, wireless access control systems, short-distance paging in the community, industrial data collection systems, wireless tags, identification, contactless RF smart cards, small wireless data terminals, security fire protection systems, wireless remote control systems, Biological signal acquisition, hydrometeorological monitoring, robot control, wireless 232 data communication, wireless digital audio, digital image transmission, etc.
CC1100 chip basic features:
1.315, 433, 868, 915Mh ISM and SRD frequency bands
2. Maximum operating speed 500kbps, support 2-FSK, GFSK and MSK modulation
3. High sensitivity (110kbps at 1.2kbps, 1% packet error rate)
4. Built-in hardware CRC error detection and point-to-multipoint communication address control
5. Lower current consumption (RX, 15.6mA, 2.4kbps, 433MHz)
6. Programmable control of output power up to +10dBm for all supported frequencies
7. Supports low-power electromagnetic wave activation (wireless wake-up) function
8. Automatically clean channel access (CCA) before transmission, ie carrier sense system
9. Suitable Frequency Hopping System Brought by Fast Frequency Variation Synthesizer
10. Module can be software address, software programming is very convenient
11. Separate 64-byte RX and TX data FIFOs
NewMsg_RF1100 Module Application Area:
The NewMsg_RF1100 module is suitable for very low power UHF wireless transceivers, 315/433/868 and 915MHz ISM/SRD band systems, AMR-automatic meter readings, electronic consumer products, remote remote control, low power remote sensing, residential and building automation, Wireless alarm and security system, industrial monitoring and control, wireless sensor network, wireless wake-up function, low-power handheld terminal products.