BL652-SC-01-T/R RF/IF and RFID

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RF transceiver modules provide a one-stop platform for users to quickly transmit and receive various wireless signals. This technology has become increasingly popular in Internet of things and other areas.BL652-SC-01-T/R, a RF transceiver module developed by Laird, is a half-duplex module, and can be combined with other Laird modules to form a two-way and full-duplex communication system. The article will discuss the application fields and working principle of BL652-SC-01-T/R module.

Application Field

BL652-SC-01-T/R is designed based on Bluetooth low energy (BLE) technology, a short-range, low-power wireless communication protocol. It supports Nordic nRF52832 application processor for superior performance, long transmission range, high speed and low power consumption. This module is mainly used for short-range data transmission in a variety of non-sensitive applications. Examples include healthcare and fitness products, such as smart watches and activity trackers, avionics products, such as helicopters, drones and UAVs, and home automation products.

BL652-SC-01-T/R is equipped with two built-in antennas, which can be configured based on specific application requirements and are suitable for various application scenarios. The module also supports high-performance AES-128 encryption for secure wireless connection and broadband data transmission. In addition, the module supports an operating temperature range of -40°C to +85°C, wide operating voltage range, and integrated Real- Time Clock (RTC) for accurate timekeeping, ideal for time-sensitive data transmission.

Working Principle

BL652-SC-01-T/R uses a single antenna to simultaneously transmit and receive signals. It is based on the nRF52832 SoC and is compatible with BLE protocol version 4.2. When transmitting data, the module automatically selects several channels from the 2.4GHz ISM band to send the data packets, which are simple and reliable. After the packet is received, the two devices negotiate to select the transmission and reception channels, where the both sides communicate using packets and acknowledge the correct packets.

When receiving data, the module tunes to the selected channel and waits for the incoming data packets. After related handshaking protocol is done, the two devices will start data transmission. In addition, the module support a low power operating mode for asynchronous communication with low latency. When device is not active, the module automatically turns off the power, and will enter the deep sleep mode until new data is received.

Conclusion

BL652-SC-01-T/R is a RF transceiver module which adopts nRF52832P application processor and is compatible with Bluetooth low energy technologies. It is mainly used in healthcare, fitness and home automation products for short range data transmission. The module is also equipped with two built-in antennas, supporting AES-128 encryption for wireless connection, and integrated Real-Time Clock for accurate timekeeping. By supporting a low power operating mode, the module is able to save energy and prolong the battery life of the device.

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