Solis S3 WiFi Stick

rtl87xx global Comes with ESPHome misc
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General Notes

This configuration is for the Solis S3 WiFi Stick which reads usage data from Ginlong Solis solar inverters.

Flashing Instuctions

This device uses a MXCHIP EMW3080-E MCU (RTL8710BN clone), supported by LibreTiny. With ltchiptool one can flash a .UF2 firmware generated by ESPHome via a USB-to-serial converter connected to the test points on the board.

GPIO Pinout

PinFunction
PA00HW watchdog reset
PA05Status LED green
PA08Reset button
PA12Status LED orange
PA18ModBus UART RX
PA19ModBus Flow Ctrl
PA23ModBus UART TX

Basic Configuration

Please see the project page as there a multiple options and packages.