EN External HUD Display(0) - ajouatom/openpilot GitHub Wiki

External HUD Display(0)

Menu: Display > External HUD > Basic


External HUD Display(0)

ClusterHud

0: Off 1: TURZX 9.2 inch Applies to a direct USB HUD or a registered ESP32-S3 Wi-Fi HUD. A HUD connected to Jetson starts automatically regardless of this setting. The display turns off with ignition; HUD Debug controls always-on output. Device output is 10 FPS, or 5 FPS with an active eGPU. Jetson output is 10 FPS. CPU placement and priority are managed automatically. Updated C4 and S3 firmware 1.2.0 automatically use H.264; older firmware uses JPEG. The target is 15 FPS, capped at 10 FPS with an active eGPU; actual speed depends on wireless conditions. Initial USB or phone registration and the same 2.4 GHz network are required.

  • Type: Toggle
  • Default: 0
  • Range: 0 ~ 1
  • Menu: Display > External HUD > Basic

Behavior

Switches a direct USB or registered S3 HUD on or off. A HUD attached to Jetson starts automatically regardless of this setting.

Updated C4 and S3 firmware 1.2.0 automatically use H.264; older firmware or missing capability replies use JPEG. The target is 15 FPS, capped at 10 FPS with an active eGPU; actual speed depends on content and wireless conditions.

Installation, firmware and registration explains the one-time S3 1.2.0 update. Wi-Fi/C4 registration is preserved, and the display reconnects on the same 2.4 GHz network.

Usage

The display normally turns off with ignition. Use an always-on HUD Debug mode for offroad output; brightness and layout still use the existing HUD settings.

The Jetson HUD shows Jetson temperature and warns near its configured thermal limits. Check the fan and ventilation when warned.