Head Tracker v2.1
  • Head Tracker v2.1
    • HeadTracker v2.2
  • Getting Started
    • Hardware Required
    • Software Installation
      • Flashing Firmware
    • Wiring
      • Option 1- Bluetooth
        • Adding a FrSky BT Module
        • Checking Bluetooth Functionality?
      • Option 2 - Wired
        • Pulse Position Modulation (PPM)
          • Trainer Ports
        • Serial Bus (SBUS)
          • Radio Master TX16S Setup
          • FrSky Taranis X9D
      • Option 3 - Bridged
        • Radio Master TX16S Mk2
      • Analog Input
      • Digital Inputs
      • PPM Input
      • PWM Output
      • ELRS Setup
      • Flight Stick
    • Mounting
      • User Designed Cases
    • Structure of the Application
    • IMU, Calibration and Drift
    • Extended Servo Range
  • Settings
    • GUI Setup
      • Tilt / Roll / Pan
      • General
      • Output
      • Input
      • Bluetooth
      • PWM
      • Analog
      • Aux
  • Radio Setup
    • How to Edit Documentation
    • Open/Edge TX
      • Color Screen Radios
      • Black and White Radios
    • Jeti
    • Spektrum
      • NX
      • DX
        • DX18
    • Flysky
    • Frsky - Ethos
  • Videos
    • YouTube
  • Support
    • Discord Chat
    • Issues
    • Development
      • Firmware
        • Debugging
        • Arduino Nano 33 BLE
        • IMU Sensor Chip
      • GUI (Qt6)
      • GUI (Qt5, Depreciated)
      • Git Workflow and Actions
  • Links
    • Download
    • GitHub Page
    • RC Groups Forum
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  1. Radio Setup
  2. Spektrum
  3. DX

DX18

PreviousDXNextFlysky

Last updated 2 years ago

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There is an issue with the DX18 radio, It has been burning out the Nano33BLE when attached via PPM. The voltage levels can be much higher than 3.3v

The current recommended method to attach a Headtracker is by adding a zener diode and resistor to the PPM output pin

To attach the DX18, you will need a 3.3v zener diode and a 100ohm resistor.