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062c05cac0
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feat: Add Issue #502 - Headscale VPN auto-connect on Orin
Configure Jetson Orin with Tailscale client connecting to Headscale
coordination server at tailscale.vayrette.com:8180. Device registers
as 'saltylab-orin' with persistent auth key for unattended login.
Features:
- systemd auto-start and restart on WiFi drops
- Persistent auth key storage at /opt/saltybot/tailscale-auth.key
- SSH + HTTP access over Tailscale tailnet (encrypted WireGuard)
- IP forwarding enabled for relay/exit node capability
- WiFi resilience with aggressive restart policy
- MQTT reporting of VPN status, IP, and connection type
Components added:
- jetson/scripts/setup-tailscale.sh: Tailscale package installation
- jetson/scripts/headscale-auth-helper.sh: Auth key management utility
- jetson/systemd/tailscale-vpn.service: systemd service unit
- jetson/docs/headscale-vpn-setup.md: Comprehensive setup documentation
- saltybot_cellular/vpn_status_node.py: ROS2 node for MQTT reporting
Updated:
- jetson/systemd/install_systemd.sh: Include tailscale-vpn.service
- jetson/scripts/setup-jetson.sh: Add Tailscale setup steps
Access patterns:
- SSH: ssh user@saltylab-orin.tail12345.ts.net
- HTTP: http://saltylab-orin.tail12345.ts.net:port
- Direct IP: 100.x.x.x (Tailscale allocated address)
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
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2026-03-06 10:25:04 -05:00 |
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de9a835cc2
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feat: SIM7600X 4G cellular + GPS driver (#58)
Adds saltybot_cellular ROS2 package for the Waveshare SIM7600X 4G HAT
(SIMCom SIM7600A-H) providing GPS telemetry, modem monitoring, and
MQTT relay over cellular for remote operation.
gps_driver_node:
- Opens /dev/ttyUSB2 (NMEA), optionally sends AT+CGPS=1 on /dev/ttyUSB0
- Parses GGA (position) + RMC (velocity) from any NMEA talker (GP/GN/GL/GA)
- Validates NMEA checksum before parsing
- Publishes /gps/fix (NavSatFix, covariance from HDOP × ±2.5m CEP)
- Publishes /gps/vel (TwistStamped, ENU vE/vN from course-over-ground)
- Publishes /diagnostics (fix quality, sat count, HDOP)
cellular_manager_node:
- Polls AT+CSQ, AT+CREG?, AT+COPS? every 5s over /dev/ttyUSB0
- Publishes /cellular/status (DiagnosticArray: rssi, network, connected)
- Publishes /cellular/rssi (Int32, dBm) and /cellular/connected (Bool)
- Auto-reconnect via nmcli or pppd when data link drops
mqtt_bridge_node:
- paho-mqtt client (graceful degradation if not installed)
- ROS2→MQTT QoS 0: /saltybot/imu, /gps/fix, /gps/vel, /uwb/ranges,
/person/target, /cellular/status
- MQTT→ROS2 QoS 1: saltybot/cmd→/saltybot/cmd, saltybot/estop→/saltybot/estop
- Per-topic rate limiting (imu:5Hz, gps:1Hz, person:2Hz) → <<50KB/s budget
- Optional TLS, configurable broker/port/prefix/auth
Deliverables:
saltybot_cellular/gps_driver_node.py — 402 lines
saltybot_cellular/cellular_manager_node.py — 362 lines
saltybot_cellular/mqtt_bridge_node.py — 317 lines
config/cellular_params.yaml — full config documented
launch/cellular.launch.py — all nodes, all params as args
test/test_cellular.py — 60 pytest tests, no ROS2
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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2026-03-01 00:42:18 -05:00 |
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