How to Use YCC-2S: Examples, Pinouts, and Specs

The YCC-2S is a compact, dual-channel current sensor designed for precise measurement of electrical currents in various applications. It features high accuracy, a wide operating range, and a robust design, making it suitable for both industrial and consumer electronics. The YCC-2S is commonly used in power monitoring systems, battery management systems, motor control circuits, and energy-efficient devices.

The YCC-2S offers reliable performance with the following key specifications:

The YCC-2S has a total of 6 pins, as described in the table below:

1. Power Supply: Connect the VCC pin to a 3.3V or 5V power source and the GND pin to the ground of your circuit.
2. Current Sensing: Pass the current-carrying conductor through the sensor's input terminals (IN+ and IN-). Ensure proper polarity for accurate measurements.
3. Output Connections: Connect OUT1 and OUT2 to the analog input pins of a microcontroller or data acquisition system to read the current measurements for Channel 1 and Channel 2, respectively.
4. Signal Processing: Use the analog voltage outputs to calculate the current using the sensor's sensitivity (provided in the datasheet).

• Calibration: For optimal accuracy, calibrate the sensor in your specific application environment.
• Noise Reduction: Use decoupling capacitors (e.g., 0.1µF) between VCC and GND to minimize noise.
• Current Range: Ensure the current being measured does not exceed the ±30A range to avoid damage or inaccurate readings.
• Temperature Effects: Operate the sensor within the specified temperature range to maintain accuracy.

Below is an example of how to connect and read data from the YCC-2S using an Arduino UNO:

• Connect the VCC pin of the YCC-2S to the 5V pin on the Arduino.
• Connect the GND pin of the YCC-2S to the GND pin on the Arduino.
• Connect OUT1 to the A0 pin on the Arduino for Channel 1.
• Connect OUT2 to the A1 pin on the Arduino for Channel 2.

// Define the analog input pins for the YCC-2S outputs
const int channel1Pin = A0; // Channel 1 output connected to A0
const int channel2Pin = A1; // Channel 2 output connected to A1

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

void loop() {
  // Read the analog values from the YCC-2S outputs
  int channel1Value = analogRead(channel1Pin);
  int channel2Value = analogRead(channel2Pin);

  // Convert the analog values to current (example calculation)
  // Assuming a sensitivity of 66mV/A and a 5V reference voltage
  float current1 = (channel1Value * 5.0 / 1023.0) / 0.066;
  float current2 = (channel2Value * 5.0 / 1023.0) / 0.066;

  // Print the current values to the Serial Monitor
  Serial.print("Channel 1 Current: ");
  Serial.print(current1);
  Serial.println(" A");

  Serial.print("Channel 2 Current: ");
  Serial.print(current2);
  Serial.println(" A");

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

1. No Output Signal:

   • Cause: Incorrect power supply or loose connections.
   • Solution: Verify that the VCC and GND pins are properly connected and the supply voltage is within the specified range.

2. Inaccurate Readings:

   • Cause: Calibration not performed or excessive noise in the circuit.
   • Solution: Calibrate the sensor and add decoupling capacitors to reduce noise.

3. Output Voltage Saturation:

   • Cause: Current exceeds the ±30A range.
   • Solution: Ensure the current being measured is within the sensor's range.

Q: Can the YCC-2S measure both AC and DC currents?
A: Yes, the YCC-2S can measure both AC and DC currents within its specified range.

Q: What is the sensitivity of the YCC-2S?
A: The sensitivity is typically 66mV/A, but refer to the datasheet for precise values.

Q: Can I use the YCC-2S with a 3.3V microcontroller?
A: Yes, the YCC-2S operates with a supply voltage of 3.3V to 5V, making it compatible with 3.3V systems.

Q: How do I protect the sensor from overcurrent?
A: Use a fuse or current-limiting resistor in your circuit to prevent currents exceeding the sensor's range.