The difference between 433 MHz module and how to choose

Smart home terminal products continue to increase, opening up the market for 433 MHz modules for data transmission. Wireless modules on the market include the SX1278 wireless module, Si4432 wireless module, Si4463 wireless module, SX1212 wireless module, etc. What is the difference between these modules and how should they be selected? Below, this article will introduce you in detail.

SX1278 wireless module (NiceRF Wireless Product Model: LoRa1278) uses Semtech’s SX1278 device, which uses LoRa spread spectrum modulation frequency hopping technology, efficient receiving sensitivity, and super anti-jamming performance, and its communication distance and receiving sensitivity are both Far surpassing FSK and GFSK modulation. 100mW output power, sensitivity as high as -139dBm@LoRa, receiving current 20dBm, sleep current <200mA, frequency range 433/470MHz, it integrates LoRa, FSK, GFSK and OOK modulation modes in one, very compact, and widely used in wireless reading Meters, remote industrial control and other fields.

The Si4432 wireless module (NiceRF Wireless Product Model: RF4432PRO) uses Silicon Lab Si4432 devices, which is a highly integrated wireless ISM band transceiver chip. Very low receiving sensitivity (-121 dBm), coupled with the industry-leading +20 dBm output power to ensure extended range and improved link performance, the module integrates FSK, GFSK, and OOK modulation modes in one, and the frequency range is 433/4470/ 868/915MHz is optional, often used in remote control, industrial control, toy control, and other fields.

The Si4463 wireless module (NiceRF Wireless Product Model: RF4463PRO) uses the Silicon Lab Si4463C version, a highly integrated wireless ISM band transceiver chip. The sensitivity is up to -126dBm, the maximum output power is 20dBm, the frequency range is 433/470/868/915 (142-1050MHz can be customized), and the module is small in size, including (G)FSK, 4(G)FSK, (G)MSK, OOK and The ASK modulation mode is integrated, and the built-in antenna diversity and frequency hopping support can be used to further expand the range and improve performance.

SX1212 wireless module (NiceRF wireless product: RF1212) uses SX1212 chip, frequency range: 315/433MHz, and has very low power consumption (3mA) in receiving mode. It integrates a baseband modem with a data transfer rate of up to 150 Kb/s. The data processing function includes a 64-byte FIFO packet processing, automatic CRC generation, and data optimization, and the high degree of hardware integration allows a very small number of external components. The module complies with European (ETSI EN300-220 V2.1.1) and North American FCC (15.247 and 15.249) certification standards.

SX1278/Si4432/Si4463/SX1212 433 MHz modules have their own advantages. In different project applications, customers can choose the best module according to the actual situation. If the project requires a relatively long transmission distance, you can choose the LoRa1278 wireless module (embedded with the SX1278 chip). If the distance requirement is not high, choosing the RF1212 module can reduce the project cost.