Introduction
The Walkera Devo 7E is a compact yet feature-rich 2.4GHz DSSS 7-channel radio controller designed for indoor helicopters and quadcopters. It offers advanced functionality, including model memory, adjustable gyro sensitivity, and wireless data transfer, making it suitable for both beginners and experienced RC enthusiasts. This manual provides essential information for the safe and effective use of your Devo 7E transmitter.

Figure 1: Front view of the Devo 7E Transmitter
Setup
1. Battery Installation
- Ensure the transmitter is powered off.
- Locate the battery compartment on the back of the transmitter.
- Open the battery compartment cover.
- Insert four (4) 1.5V AA batteries or four (4) 1.2V Ni-MH 1600-2000mAh rechargeable batteries, observing the correct polarity (+/-).
- Close the battery compartment cover securely.
2. Initial Power On
- Press and hold the power button until the display illuminates.
- The transmitter will perform a self-check. Ensure no error messages are displayed.
3. Binding with Receiver
To establish communication between the Devo 7E transmitter and your RC model's receiver, a binding process is required. Refer to your receiver's specific instructions for its binding procedure, as it may vary. Generally, the steps involve:
- Power on the receiver in binding mode (often by holding a button while powering on, or inserting a bind plug).
- Power on the Devo 7E transmitter while holding the bind button (if available) or navigating to the bind function in the menu.
- The indicator lights on both the transmitter and receiver should confirm a successful bind.
- Always test controls before flight after binding to ensure proper function.
Operating Instructions
1. Basic Controls
- Sticks: Control the primary flight functions (throttle, aileron, elevator, rudder). The Devo 7E supports 4 different kinds of stick modes (e.g., Mode 1, Mode 2).
- Switches: Used for auxiliary functions such as flight modes, gear, or other programmable features.
- Display: Shows real-time telemetry data, menu options, and system status.
- Buttons (EXT, ENT, D, U): Navigate through menus and confirm selections.
2. Menu Navigation
Use the 'EXT' and 'ENT' buttons to enter and exit menus, and the 'D' (Down) and 'U' (Up) buttons to scroll through options and adjust values. The intuitive menu system allows for easy configuration of your models.
3. Model Memory
The Devo 7E can save data for up to 30 different models. This allows you to quickly switch between various aircraft without reconfiguring settings each time.
4. Gyro Sensitivity Adjustment
Adjusting the gyro sensitivity directly from the transmitter makes hovering and performing advanced maneuvers easier and more precise. Consult your model's manual for recommended gyro settings.
5. Wireless Data Transfer & Trainer Function
The Devo 7E supports wireless data transfer between two transmitters, allowing for easy sharing of model settings. The trainer function enables a student pilot to learn with an instructor, where control can be passed between two linked transmitters.
6. USB Online Update
Keep your transmitter's firmware up-to-date by connecting it to a computer via USB. This ensures you always have the latest features and performance enhancements.
Maintenance
1. Battery Care
- Remove batteries if the transmitter will not be used for an extended period to prevent leakage.
- If using rechargeable Ni-MH batteries, follow proper charging procedures to maximize battery life.
2. Cleaning
- Wipe the transmitter with a soft, dry cloth.
- Avoid using harsh chemicals or solvents that could damage the casing or electronics.
3. Storage
- Store the transmitter in a cool, dry place, away from direct sunlight and extreme temperatures.
- Protect the sticks and switches from physical damage during storage.
Troubleshooting
- Transmitter not powering on: Check battery installation and ensure batteries are charged or new.
- Model not responding: Verify that the transmitter is bound to the receiver and that the correct model memory is selected. Check receiver power and connections.
- Intermittent control: Ensure you are within the operational range and there are no significant sources of 2.4GHz interference. Check antenna position on both transmitter and receiver.
- Display issues: If the display is blank or shows garbled text, try restarting the transmitter. If the problem persists, perform a firmware update via USB.
Specifications

Figure 2: Angled view of the Devo 7E Transmitter
| Feature | Detail |
|---|---|
| Model Name | Devo 7E |
| Product Type | Transmitter |
| Encoder | 7-channel micro computer system |
| Dimensions (W*H*D) | 154*150*56 mm |
| Weight | 417g (without TX battery) |
| Frequency | 2.4GHZ DSSS |
| Output Power | <10mW |
| Current Drain | 200mA (100mW) |
| Battery | 4*1.5V AA or Ni MH 4*1.2V 1600-2000mAh |
| Output Pulse | 1000-2000ms |
| Material | Composite Material |
| Recommended Age | 14+ years |
User Tips
- Always ensure your transmitter batteries are fully charged before each flight session to avoid unexpected power loss.
- Regularly check for firmware updates using the USB online update feature to benefit from the latest improvements and bug fixes.
- Experiment with different stick modes to find the configuration that best suits your flying style and comfort.
- When using the trainer function, ensure both transmitters are properly linked and tested before allowing a student to take control.
Warranty and Support
For warranty claims, technical support, or service inquiries, please contact the original seller or the manufacturer directly. Keep your proof of purchase for any warranty-related requests. Detailed contact information can typically be found on the seller's website or in the product packaging.





