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Introduction NF 04 is a 2 4G wireless module with small size and on board antenna It has a high airspeed up to 2Mbps SPI interface and a pure hardware module It has high stability high cost performance and good spectrum test characteristics small size using all industrial grade components NF 04 can be widely used in various Internet of Things applications and is suitable for wireless mouse and keyboard wireless remote control somatosensory equipment active RFID NFC low power self organizing network wireless sensor network nodes Ideal solution for IoT applicationsFeature 1 DIP 8 ultra small package built in 2 4G antenna compact size easy to use2 Support data reception of six channels3 Support normal modulation methods such as GFSK FSK4 Support 2Mbps 1Mbps 250Kbps data rate5 Multi frequency point 126 frequency points to meet the needs of multi point communication and frequency hopping communication6 Internally integrated high PSRR LDO7 Wide power supply voltage range 1 9 3 6V8 Average emission current as low as 110mA9 Receive sensitivity 96dBm 250kbps10 Maximum transmit power 7dBm11 With four wire SPI interface the speed can up to 10MHz12 Internal integrated intelligent ARQ baseband protocol engine13 Transceiver data hardware interrupt output14 Support 1bit RSSI output15 Low application cost BK2425 integrates all high speed signal processing parts related to RF protocol such as automatic retransmission of lost data packets and auto
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