Bridge wizard

Follow-me needs a small Lua script, wzfm.lua, running on the radio. It sits between the radio and the phone: it streams telemetry to Wizzo, and passes Wizzo’s follow-me targets on to the flight controller. The Bridge wizard puts it on the radio’s SD card and checks it’s running.

Open it from Setup › Bridge wizard, or from the LINK tab when the bridge isn’t detected over USB. You need a USB-C cable for the install, even if you fly over Bluetooth or Wi-Fi.

1. Connect in storage mode

Plug the radio into the phone and choose USB Storage (SD) on the radio. Wizzo shows Radio drive found when it sees it.

2. Open the SD card

• If Android mounts the drive, tap Choose SD card, pick the radio’s drive (its top level), tap Use this folder, then Allow.
• If Android doesn’t mount it (some phones won’t), tap Open radio drive. Wizzo reads the card directly over USB. Android asks once whether Wizzo may use the USB device; tap OK.

Wizzo lists each script and whether it’s Not installed, Will update, or Up to date.

3. Install the scripts

Tap Install scripts. Wizzo copies:

• SCRIPTS/FUNCTIONS/wzfm.lua, the bridge;
• SCRIPTS/TOOLS/wzdiag.lua, an on-radio diagnostics tool.

It then re-reads the card to make sure both copies are exact.

4. Set up and test

1. Unplug the cable.
2. SYS › Hardware: set the port the phone uses to LUA. That’s USB VCP for USB, or the AUX port your Bluetooth or Wi-Fi module is on.
3. In the model’s Special Functions (or Global Functions, to cover every model) add ON › Lua Script › wzfm, and enable it.
4. Connect again: plug back in and choose USB Serial (VCP), or connect over Bluetooth or Wi-Fi from the wizard.

The wizard listens for the bridge’s heartbeat, and Done unlocks once it arrives. If it doesn’t, the wizard says what’s most likely wrong. See also Troubleshooting.