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SX1281 RF chip and a PA amplification circuit, provides solid support for long-distance communication and highly stable control of lawn mowers with its 500mW high-power output, ultra-high reception sensitivity of -132dBm, and excellent penetration performance in the 2.4GHz band.

Serial communication is a method of transmitting data bit by bit. Common serial communication protocols include RS-232, RS-485, and TTL-level serial ports. Compared with parallel communication, which transmits multiple bits simultaneously, serial communication has a lower transmission rate but offers simpler wiring, stronger anti-interference capability, and lower cost, making it especially advantageous for long-distance communication.

The communication performance of the wireless module largely depends on the RF chip used. Mainstream chips include: SX1278, SX1276, SX1280 (supporting LoRa communication) SI4438, SI4463 (supporting FSK/GFSK modulation) CC1101 (low power consumption, high stability)

When using wireless data transmission modules, users often encounter challenging issues due to limited understanding of wireless communication. For instance, why can’t two modules establish communication properly?

LoRa1121 is an ultra-low-power long-range LoRa transceiver that supports Sub-GHz, 2.4 GHz, and satellite S-band connections. It is compatible with LoRa, (G)FSK, and LR-FHSS modulation schemes, and supports both LoRaWAN and Sigfox protocols.