How to Use ZS-X11H V2: Examples, Pinouts, and Specs

The ZS-X11H V2 is a versatile wireless relay module designed for remote control of electrical devices. Manufactured by China NoName, this module operates using RF (Radio Frequency) signals, making it an ideal choice for automation projects. It allows users to switch devices on and off from a distance, providing convenience and flexibility in various applications.

• Home automation systems (e.g., controlling lights, fans, or appliances)
• Industrial automation for remote equipment control
• IoT (Internet of Things) projects
• Wireless control of motors, pumps, or other electrical devices
• Security systems for activating alarms or locking mechanisms

The ZS-X11H V2 is designed to provide reliable performance in a compact form factor. Below are its key technical details:

The ZS-X11H V2 module has a simple pinout for easy integration into circuits. Below is the pin configuration:

The ZS-X11H V2 is straightforward to use in a variety of circuits. Follow the steps below to integrate it into your project:

1. Power the Module: Connect the VCC pin to a 5V DC power source and the GND pin to ground.
2. Connect the Load:
   • For devices that should be powered when the relay is activated, connect one terminal of the load to the NO (Normally Open) pin and the other terminal to the power source.
   • For devices that should be powered when the relay is deactivated, connect one terminal of the load to the NC (Normally Closed) pin and the other terminal to the power source.
   • In both cases, connect the COM (Common) pin to the other side of the power source.
3. Trigger the Relay: Send a signal to the IN pin to activate the relay. The relay will switch between the NO and NC states based on the signal.

• Ensure the load connected to the relay does not exceed the maximum voltage (250V AC / 30V DC) or current (10A).
• Use proper insulation and safety precautions when working with high-voltage loads.
• Avoid placing the module in environments with excessive heat, moisture, or electromagnetic interference.
• For wireless operation, ensure there are no significant obstacles between the transmitter and the module to maintain a strong RF signal.

The ZS-X11H V2 can be easily controlled using an Arduino UNO. Below is an example code snippet to toggle the relay:

// Define the pin connected to the relay module
const int relayPin = 7;

void setup() {
  // Set the relay pin as an output
  pinMode(relayPin, OUTPUT);
  // Initialize the relay in the OFF state
  digitalWrite(relayPin, LOW);
}

void loop() {
  // Turn the relay ON
  digitalWrite(relayPin, HIGH);
  delay(5000); // Keep the relay ON for 5 seconds

  // Turn the relay OFF
  digitalWrite(relayPin, LOW);
  delay(5000); // Keep the relay OFF for 5 seconds
}

Note: Connect the IN pin of the ZS-X11H V2 to pin 7 of the Arduino UNO. Ensure the module is powered with 5V from the Arduino's 5V and GND pins.

1. Relay Not Activating:

   • Cause: Insufficient power supply.
   • Solution: Ensure the module is powered with a stable 5V DC source.
   • Cause: Incorrect signal to the IN pin.
   • Solution: Verify the signal voltage is within the acceptable range (typically 3.3V to 5V).

2. RF Signal Not Working:

   • Cause: Obstructions or interference in the communication path.
   • Solution: Remove obstacles or reduce the distance between the transmitter and the module.
   • Cause: Incorrect RF frequency.
   • Solution: Ensure the transmitter operates at 433 MHz.

3. Load Not Switching Properly:

   • Cause: Load exceeds the relay's maximum ratings.
   • Solution: Use a load within the specified voltage and current limits.

Q1: Can the ZS-X11H V2 be used with a 3.3V microcontroller?
A1: Yes, the IN pin can typically accept 3.3V signals, but ensure the module is powered with 5V DC.

Q2: What is the maximum range of the RF signal?
A2: The module can operate up to 50 meters in a line-of-sight environment. Obstacles may reduce this range.

Q3: Can I use this module to control DC motors?
A3: Yes, as long as the motor's voltage and current are within the relay's maximum ratings (30V DC, 10A).

Q4: Is the module compatible with other RF frequencies?
A4: No, the ZS-X11H V2 is designed to operate specifically at 433 MHz.