How to Use FCHUB-12S V2: Examples, Pinouts, and Specs

The FCHUB-12S V2 is a versatile power distribution hub designed for use in RC and drone applications. It enables efficient power management and distribution to multiple components from a single power source. This component is particularly useful in multi-rotor drones, where it simplifies wiring and ensures stable power delivery to flight controllers, ESCs (Electronic Speed Controllers), and other peripherals.

• Power distribution for multi-rotor drones
• RC vehicles and robotics
• Integration with flight controllers for clean and efficient wiring
• Voltage and current monitoring for battery management
• Powering auxiliary components such as cameras, LEDs, and transmitters

The FCHUB-12S V2 is designed to handle high-current loads while providing reliable power distribution. Below are its key technical details:

The FCHUB-12S V2 features solder pads and connectors for power input, output, and monitoring. Below is a detailed description of its pin configuration:

1. Power Input Connection:

   • Connect the positive terminal of your LiPo battery to the VBAT+ pad.
   • Connect the negative terminal of your LiPo battery to the VBAT- pad.
   • Ensure secure soldering to handle high current loads.

2. Power Output to ESCs:

   • Solder the positive and negative wires of each ESC to the ESC+ and ESC- pads, respectively.
   • Verify that the ESCs are rated for the input voltage of your battery.

3. Auxiliary Power Output:

   • Use the VOUT+ and VOUT- pads to power auxiliary components such as cameras, LEDs, or transmitters.
   • Ensure the auxiliary components are compatible with the battery voltage.

4. Voltage and Current Monitoring:

   • Connect the VOLT and CURR pins to the corresponding inputs on your flight controller.
   • Connect the GND pin to the ground of your flight controller.
   • Configure the flight controller software (e.g., Betaflight) to read voltage and current data.

• Soldering: Use high-quality solder and ensure all connections are secure to prevent power loss or overheating.
• Heat Dissipation: Avoid placing the FCHUB-12S V2 near heat-sensitive components, as it may generate heat under high loads.
• Current Limits: Do not exceed the maximum current rating of 200A to prevent damage to the board.
• Insulation: Ensure no exposed wires or solder joints can short-circuit against other components.
• Flight Controller Configuration: Calibrate the voltage and current sensors in your flight controller software for accurate readings.

While the FCHUB-12S V2 is primarily designed for drones, it can also be used with an Arduino UNO for voltage and current monitoring. Below is an example code snippet:

// Example code for reading voltage and current from FCHUB-12S V2
// Connect VOLT to A0, CURR to A1, and GND to Arduino GND

const int voltagePin = A0; // Pin connected to VOLT output
const int currentPin = A1; // Pin connected to CURR output

void setup() {
  Serial.begin(9600); // Initialize serial communication
}

void loop() {
  // Read analog values from VOLT and CURR pins
  int voltageRaw = analogRead(voltagePin);
  int currentRaw = analogRead(currentPin);

  // Convert raw values to actual voltage and current
  // Assuming a 5V Arduino and 10-bit ADC (0-1023 range)
  float voltage = (voltageRaw / 1023.0) * 60.0; // Scale to 0-60V
  float current = (currentRaw / 1023.0) * 200.0; // Scale to 0-200A

  // Print the results to the Serial Monitor
  Serial.print("Voltage: ");
  Serial.print(voltage);
  Serial.println(" V");

  Serial.print("Current: ");
  Serial.print(current);
  Serial.println(" A");

  delay(1000); // Wait 1 second before next reading
}

1. No Power Output:

   • Cause: Poor soldering or loose connections.
   • Solution: Recheck all solder joints and ensure secure connections.

2. Inaccurate Voltage/Current Readings:

   • Cause: Incorrect calibration in the flight controller or Arduino.
   • Solution: Calibrate the sensors in your flight controller software or adjust the scaling factors in your Arduino code.

3. Overheating:

   • Cause: Exceeding the maximum current rating or poor ventilation.
   • Solution: Ensure the current load is within the 200A limit and improve airflow around the board.

4. Short Circuit:

   • Cause: Exposed wires or solder joints touching other components.
   • Solution: Insulate all connections and check for potential shorts.

Q: Can the FCHUB-12S V2 handle 6S LiPo batteries?
A: Yes, the FCHUB-12S V2 supports up to 12S LiPo batteries, including 6S.

Q: Is it compatible with all flight controllers?
A: The FCHUB-12S V2 is compatible with most flight controllers that support analog voltage and current monitoring.

Q: Can I use it for non-drone applications?
A: Yes, it can be used in any application requiring efficient power distribution, such as RC cars or robotics.

Q: How do I mount the FCHUB-12S V2?
A: Use the standard 30.5mm x 30.5mm mounting holes to secure it to your frame or chassis.