This project implements a tank-style RC car controlled via a FlySky FS-i6 transmitter and Arduino Uno. The vehicle uses differential drive logic—meaning it turns by varying the speeds of the left and right wheels, just like a tank. This eliminates the need for physical steering components and allows for precise pivot turns and smooth directional control.
- ✅ FlySky FS-i6 Receiver input via
pulseIn()(PWM) - ✅ Tank-style differential drive
- ✅ Forward/backward with Channel 2 (right stick vertical)
- ✅ Turning left/right with Channel 1 (right stick horizontal)
- ✅ PWM motor speed control (
analogWrite) - ✅ Safe stop on signal loss
- ✅ Deadzone filtering to ignore joystick noise
- ✅ Compatible with L298N or similar H-bridge drivers
| Component | Details |
|---|---|
| Microcontroller | Arduino Uno / Nano |
| Transmitter & Receiver | FlySky FS-i6 + 6CH Receiver |
| Motor Driver | L298N Dual H-Bridge |
| Drive Motors | 2x DC gear motors |
| Power Source | 2S/3S LiPo or battery pack |
| Miscellaneous | Jumper wires, custom chassis |
| Stick Action | Function |
|---|---|
| Forward / Backward | Throttle (speed) |
| Left / Right | Turn (differential) |
The right joystick alone controls both speed and direction.
- Reads PWM signals from FlySky receiver on pins D4 (CH1) and D6 (CH2).
- Maps joystick values to speed using Arduino’s
map()andanalogWrite(). - Implements tank-style logic:
- Both motors forward/backward for straight movement
- One motor slower or reversed to allow turning
- Opposite directions for in-place rotation
- Adds deadzone logic to avoid twitching when joystick is near center.
- On signal loss (pulse width out of bounds), it cuts motor power for safety.
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Wire the Receiver:
- CH1 → D4
- CH2 → D6
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Connect the L298N Motor Driver:
- ENA, IN1, IN2 → Motor A
- ENB, IN3, IN4 → Motor B
- Use PWM pins (e.g., D5, D9)
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Upload Arduino Sketch to your board.
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Power Motors using a separate 7.4V–12V source (not USB).
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Control the Car using the right joystick on your FlySky FS-i6.
Watch the RC Tank Car in action
