Description

NF-04-MI is a 2.4G wireless module with stamp hole technology, high air speed (up to 2Mbps), using SPI interface, and pure hardware module with integrated transceiver and receiver. High stability, high cost performance, good spectrum testing characteristics, small size, using all-industrial components. It has been manufactured in batches and shipped in millions and is suitable for many scenarios. NF-04-MI can be widely used in various applications of the Internet of Things. It is suitable for wireless keymouse, wireless remote control, somatosensory devices, active RFID, NFC, low power self-organizing wireless sensor network nodes, etc. It is an ideal solution for the application of the Internet of Things. NF-04-MI is encapsulated with stamp holes, so it can be quickly received from existing products and used conveniently in both learning and mass production.

Ultra small size package, stamp hole, built-in 2.4G antenna, compact size, easy to use * Supports six-channel data reception * Supports general modulation methods such as GFSK/FSK * Supports 2Mbps/1Mbps/250Kbps data rate * Multipoint: 126 frequencies to meet the needs of multipoint and frequency hopping communications * Internally integrated LDO with high PSRR * Wide power supply voltage range: 1.9~3.6V * Average emission current as low as 110 mA * Receive sensitivity: - 96dBm@250kbps * Maximum transmission power: +7dBm * With a four-wire SPI interface, the rate can reach 10MHz * Internal Integration Intelligent ARQ Baseband Protocol Engine * Output of hardware interrupts for sending and receiving data * Supports 1 bit RSSI output Low application cost: BK2425 integrates all high-speed signal processing parts related to RF protocol, such as: automatic retransmit of lost data packets and automatic generation of response signals, etc. The SPI interface of BK2425 can use the hardware SPI port of single-chip computer to connect or simulate with the I/O port of single-chip computer. The internal FIFO can interface with a variety of high-speed and low-speed microprocessors, making it easy to use low-cost single-chip computer. * Easy to develop: Because the link layer is fully integrated on the module, it is very easy to develop. Automatic resend function, automatic detection and resend of lost packets, resend time and number of times can be controlled by software to automatically store the automatic reply function of packets that have not received an answer signal. After receiving valid data, the module automatically sends an answer signal. There is no need to program additional carrier detection - fixed frequency detection Built-in hardware CRC error detection and point-to-multipoint communication address control Packet transmission error counter and carrier detection function can be used for frequency hopping settings to set six receive channel addresses at the same time. It can selectively open the standard 1.27mm stamp hole spacing interface of the receive channel for embedded application.

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