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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.

Master-Slave Architecture Design Define clear roles: distinguish responsibilities between the master node and slave nodes Master node: initiates communication, manages polling, receives data, and issues commands Slave nodes: passively respond to master requests or report upon specific trigger conditions

The LoRa1262 module features high sensitivity, low power consumption, compact size, and a high transmission power of 22dBm. It integrates a high-precision crystal oscillator, a low-power microcontroller, and a 64KHz crystal, and supports scheduled wake-up functionality.