XH-W3001 Intelligent Led Digital Microcomputer Temperature Controller Mini Thermostat Switch with Water-Resistant Sensor Probe 10A (Max) Multipurpose Controller

XH-W3001 Intelligent Led Digital Microcomputer Temperature Controller Mini Thermostat Switch Documentation

Overview

The XH-W3001 is a microcomputer-based temperature controller featuring a built-in LED display, water-resistant sensor probe, and a 10A max relay output. This device is designed for a wide range of applications, including temperature control, thermostat, and automation systems.

Technical Specifications

Operating Temperature: -20C to 60C
 Temperature Measurement Range: -50C to 120C
 Accuracy: 1C
 Relay Output: 10A max, 250VAC
 LED Display: 3-digit, 7-segment
 Sensor Probe: Water-resistant, 1m long
 Power Supply: 12VDC, 5VDC (optional)
 Dimensions: 60mm x 40mm x 25mm

Pinout

| Pin | Function |
| --- | --- |
| VCC | Power supply (12VDC or 5VDC) |
| GND | Ground |
| IN | Temperature sensor probe input |
| OUT | Relay output |
| SET | Configuration button |
| UP/DOWN | Increment/decrement buttons |

Programming and Control

The XH-W3001 can be controlled and programmed using a microcontroller or a computer via serial communication (UART or TTL). The device uses a simple ASCII-based command protocol.

Example 1: Basic Temperature Control using Arduino

This example demonstrates how to use the XH-W3001 with an Arduino board to control a relay based on temperature readings.

```cpp
#include <SoftwareSerial.h>

SoftwareSerial mySerial(2, 3); // RX, TX

void setup() {
  mySerial.begin(9600);
}

void loop() {
  // Read temperature from sensor probe
  int temp = readTemp();

// Set relay output based on temperature
  if (temp > 25) {
    mySerial.println(" relay on");
  } else {
    mySerial.println(" relay off");
  }

delay(500);
}

int readTemp() {
  mySerial.println(" temp");
  delay(50);
  String tempStr = mySerial.readStringUntil('
');
  int temp = tempStr.toInt();
  return temp;
}
```

Example 2: Thermostat Mode using Python

This example demonstrates how to use the XH-W3001 in thermostat mode with a Python script running on a Raspberry Pi or similar device.

```python
import serial

ser = serial.Serial('/dev/ttyUSB0', 9600)

def set_thermostat_mode():
  ser.write(b'thermostat on
')

def set_temperature(temp):
  ser.write(f'set {temp}
'.encode())

def main():
  set_thermostat_mode()
  while True:
    temp = int(ser.readline().decode().strip())
    if temp > 25:
      print("Turning on fan...")
      ser.write(b'relay on
')
    else:
      print("Turning off fan...")
      ser.write(b'relay off
')
    time.sleep(1)

if __name__ == '__main__':
  main()
```

Example 3: Automatic Temperature Control using ESP32

This example demonstrates how to use the XH-W3001 with an ESP32 board to create an automatic temperature control system with Wi-Fi connectivity.

```cpp
#include <WiFi.h>
#include <AsyncTCP.h>

// Wi-Fi credentials
const char ssid = "your_ssid";
const char password = "your_password";

WiFiServer server(80);

void setup() {
  Serial.begin(9600);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to Wi-Fi...");
  }
  Serial.println("Connected to Wi-Fi");
  server.begin();
}

void loop() {
  WiFiClient client = server.available();
  if (client) {
    while (client.available() > 0) {
      String request = client.readStringUntil('
');
      if (request.indexOf("get_temp") != -1) {
        int temp = readTemp();
        client.println("HTTP/1.1 200 OK");
        client.println("Content-Type: text/plain");
        client.println();
        client.println(String(temp));
      }
      if (request.indexOf("set_temp") != -1) {
        int temp = request.toInt();
        setTemperature(temp);
        client.println("HTTP/1.1 200 OK");
        client.println("Content-Type: text/plain");
        client.println();
        client.println("Temperature set to " + String(temp));
      }
    }
  }
  delay(50);
}
```

Notes and Precautions

Make sure to follow proper wiring and electrical safety guidelines when using the XH-W3001.
 The device may require calibration before use.
 Ensure the sensor probe is properly connected and protected from moisture.
 Use a suitable power supply and ensure the device is operated within its specified temperature range.

By following these examples and guidelines, you can effectively integrate the XH-W3001 Intelligent Led Digital Microcomputer Temperature Controller into your IoT projects and applications.