Flysky FS-GT2 Transmitter with FS-GR3E Receiver for RC Car/Boat/Planes/Truck/Quadcopters

Flysky FS-GT2 Transmitter with FS-GR3E Receiver Documentation

Overview

The Flysky FS-GT2 Transmitter with FS-GR3E Receiver is a popular Radio Control (RC) system designed for remote-controlled cars, boats, planes, trucks, and quadcopters. This documentation provides an overview of the component's features, specifications, and code examples to help users integrate it into their projects.

Features

2.4GHz frequency hopping technology for reliable and interference-free communication
 High-precision joystick and trigger controls
 10-model memory for storing different model settings
 Real-time telemetry data transmission (RSSI, voltage, temperature)
 Compatible with various RC models, including cars, boats, planes, trucks, and quadcopters

Technical Specifications

Transmitter (FS-GT2):
	+ Frequency: 2.4GHz
	+ Range: Up to 500m (1640ft)
	+ Power: 4x AA batteries (not included)
 Receiver (FS-GR3E):
	+ Frequency: 2.4GHz
	+ Sensitivity: -105dBm
	+ Operating voltage: 3.5-10V
	+ Operating current: 15-30mA

Code Examples

The following code examples demonstrate how to use the Flysky FS-GT2 Transmitter with FS-GR3E Receiver in various contexts:

Example 1: Basic Control using Arduino

In this example, we will use an Arduino board to read the transmitter's joystick and trigger inputs and control an RC car's motors.

```c++
#include < Arduino.h>

// Define the pins for the joystick and trigger inputs
const int joystickX = A0;
const int joystickY = A1;
const int trigger = 2;

// Define the pins for the motor control
const int motorLeftForward = 3;
const int motorLeftBackward = 4;
const int motorRightForward = 5;
const int motorRightBackward = 6;

void setup() {
  // Initialize the motor control pins as outputs
  pinMode(motorLeftForward, OUTPUT);
  pinMode(motorLeftBackward, OUTPUT);
  pinMode(motorRightForward, OUTPUT);
  pinMode(motorRightBackward, OUTPUT);
}

void loop() {
  // Read the joystick and trigger inputs
  int xValue = analogRead(joystickX);
  int yValue = analogRead(joystickY);
  int triggerValue = digitalRead(trigger);

// Map the joystick inputs to motor control signals
  int leftSpeed = map(xValue, 0, 1023, -255, 255);
  int rightSpeed = map(yValue, 0, 1023, -255, 255);

// Control the motors based on the joystick and trigger inputs
  if (triggerValue == HIGH) {
    analogWrite(motorLeftForward, abs(leftSpeed));
    analogWrite(motorRightForward, abs(rightSpeed));
  } else {
    analogWrite(motorLeftBackward, abs(leftSpeed));
    analogWrite(motorRightBackward, abs(rightSpeed));
  }

delay(20);
}
```

Example 2: Telemetry Data Transmission using Python

In this example, we will use a Python script to read the telemetry data from the FS-GR3E Receiver and display it on a console.

```python
import serial

# Open the serial connection to the receiver
ser = serial.Serial('COM3', 115200)

while True:
    # Read the telemetry data from the receiver
    data = ser.readline().decode().strip()

# Parse the telemetry data
    if data.startswith('RSSI'):
        rssi = int(data.split(':')[-1])
        print(f'RSSI: {rssi} dBm')
    elif data.startswith('VOLTAGE'):
        voltage = float(data.split(':')[-1])
        print(f'Voltage: {voltage} V')
    elif data.startswith('TEMPERATURE'):
        temperature = float(data.split(':')[-1])
        print(f'Temperature: {temperature} C')

# Handle errors
    except serial.SerialException as e:
        print(f'Error: {e}')
        break
```

Example 3: Custom Protocol using C++

In this example, we will use a C++ program to implement a custom protocol to send data from the FS-GT2 Transmitter to the FS-GR3E Receiver.

```c++
#include <iostream>
#include <cstdlib>

// Define the custom protocol packet structure
struct ProtocolPacket {
  uint8_t header;
  uint8_t data[4];
  uint8_t checksum;
};

int main() {
  // Initialize the transmitter
  // ...

// Define the custom protocol packet
  ProtocolPacket packet;
  packet.header = 0x02; // Custom protocol header
  packet.data[0] = 0x01; // Data byte 1
  packet.data[1] = 0x02; // Data byte 2
  packet.data[2] = 0x03; // Data byte 3
  packet.data[3] = 0x04; // Data byte 4
  packet.checksum = 0xFF; // Checksum byte

// Send the custom protocol packet
  // ...

return 0;
}
```

These code examples demonstrate how to use the Flysky FS-GT2 Transmitter with FS-GR3E Receiver in various contexts. You can modify and extend these examples to suit your specific project requirements.