Gateway hardware compatibility

The currently published JKBMSR firmware target. WROOM antenna variants use the same firmware.

• • Requires at least 4 MB flash.
• • Default BMS UART pins are GPIO16 (RX) and GPIO17 (TX).
• • ESP32-WROOM-32U is the external-antenna version and does not need different firmware.

The CPU may be compatible, but integrated displays, PSRAM, relays, or other peripherals can reserve required pins.

• • Confirm 4 MB flash and available UART pins before flashing.
• • Bare modules require a correct 3.3 V supply, USB-to-UART adapter, EN/BOOT circuitry, and antenna design.
• • WROVER modules may use GPIO16/17 for PSRAM; choose different BMS UART pins in gateway settings.

Detected safely by the browser flasher, but no JKBMSR ESP8266 firmware is published yet. ESP32 firmware will not be written to it.

• • ESP8266 has no Bluetooth support and fewer UART/resources than ESP32.
• • A dedicated, reduced UART-only firmware must be built and hardware-tested before this status can change.
• • Flash ID 0 is a board/flash communication problem that must be fixed before any firmware can be installed.

These use different firmware targets and must not receive the classic ESP32 image.

• • The flasher distinguishes these chip families automatically.
• • Support requires a separately built and published manifest for each compatible target.

The current browser installer and gateway runtime are designed for Espressif chips.

• • These boards use different bootloaders, networking stacks, storage, and firmware images.
• • Do not select their serial ports in the ESP browser flasher.