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Hardware Update Log

V4.0​

  • 2025-09-24 public sale

  • MCU:

    • From ESP32-S3N8 to ESP32-S3R2
    • Flash has been upgraded from 8MB built-in to 16MB external, with the addition of 2M PSRAM.

  • Power:

    • Add SH1.25-2P solar energy interface.

  • Wireless performance:

    • LoRa transmission power upgraded from 21 ± 1dBm to 28 ± 1dBm.
    • 2.4G antenna, upgraded from metal spring antenna to FPC antenna.

  • Peripheral Interface:

    • Cancel CP2102.
    • Add SH1.25-8Pin GNSS interface.
    • Pin expansion from 36Pin to 40Pin, providing more GPIO.

  • Process and Design:

    • The screen connection method has changed from welding to B2B interface, supporting free disassembly and assembly of the screen.
    • The pin process has changed from silver plating to gold plating, resulting in better conductivity and oxidation resistance.
    • There is a plastic screen stand as mechanical protection