initialize

eg4battery/etc/systemd/system/eg4-battery.service

@@ -0,0 +1,19 @@
+[Unit]
+Description=EG4 LifePower4 RS485 -> MQTT bridge
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=simple
+User=noise
+Group=dialout
+# Systemd's default PATH does not include ~/.local/bin where `uv` is installed.
+# The script's `#!/usr/bin/env -S uv run --script` shebang needs to find uv.
+Environment=PATH=/home/noise/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+# uv manages the ephemeral venv per the PEP-723 inline deps in the script
+ExecStart=/usr/local/bin/eg4-battery -C /home/noise/.config/eg4-battery/eg4-battery.yaml
+Restart=always
+RestartSec=10
+
+[Install]
+WantedBy=multi-user.target

eg4battery/etc/udev/rules.d/99-eg4-rs485.rules

@@ -0,0 +1,5 @@
+# EG4 LifePower4 RS485 bus via USB-serial adapter.
+# Grants dialout group access; /dev/serial/by-id/ symlink survives USB moves.
+# Adjust idVendor/idProduct if you use a CP210x (0x10c4:0xea60) or CH340
+# (0x1a86:0x7523) adapter instead of the reference FTDI FT232R.
+SUBSYSTEM=="tty", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6001", MODE="0660", GROUP="dialout"