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MiniF27 wireless module is designed using Semtech's LoRa chip, featuring a high-precision crystal oscillator, ultra-low receiving and sleep currents, and a sensitivity of -148dBm. It can wake up the microcontroller periodically while maintaining low power consumption.

SA618F30-FD module supports concurrent data transmission across eight channels,SA618F30-FD module boasts excellent anti-interference capabilities. It maintains stable data transmission even when multiple devices operate simultaneously, , unaffected by external interference factors.

In modern industrial automation systems, the reliability and effectiveness of communication are crucial for ensuring normal operation. RS-485, as a widely used serial communication protocol in industrial environments, has become one of the core technologies in many automation systems due to its unique advantages. Its characteristics of supporting long-distance transmission, strong anti-interference capability, and multi-point connectivity make RS-485 increasingly common in industrial automation

Frequency Range: The operating frequency range spans from 400-470 MHz, meeting the communication requirements within the UHF frequency band. SWR Performance: At 433 MHz, the voltage standing wave ratio (VSWR) is ≤ 5, and within the 400-470 MHz band, the SWR is excellent (≤ 8), effectively ensuring signal transmission efficiency, reducing reflection losses, and improving communication quality.

Logarithmic scale for small power variations: Wireless signal power is usually very small, and the logarithmic unit of dBm makes it easier to manage and compare small changes in power. Compatibility with other dB-related parameters: Parameters like gain, noise, and bandwidth in wireless communication are often expressed in dB. Using dBm allows for easier direct calculation and comparison with these parameters.