serves as the core operating code managing the popular SOLARMAN Stick Logger (WiFi) LSW-3 , a data logging device widely utilized in solar photovoltaic (PV) power systems . This visual stick, equipped with an external 9-pin DB9 or RS232 interface, plugs directly into hybrid and grid-tied inverters from primary brands like Deye, Sofar Solar, and INVT to transmit real-time performance analytics directly to the cloud.
Most standard LSW3 firmware versions support listening on local port 8899 . You can use popular custom components in Home Assistant (like the solarman integration available via HACS) to poll data directly from the LSW3 IP address using Modbus TCP over Wi-Fi. Custom Firmware Flashing (Advanced) lsw3 firmware
Includes a built-in web server for status checks and manual configuration. Advanced Configuration: Offers a hidden "secret menu" (at serves as the core operating code managing the
LSW3 firmware is used in various devices across different industries, including: You can use popular custom components in Home
This guide provides an overview of the LSW-3 firmware, how to perform an update in 2026, and troubleshooting tips. What is LSW-3 Firmware?