12V STC-3028 Dual Digital Thermostat Temperature Humidity Control Documentation

Component Name

12V STC-3028 Dual Digital Thermostat Temperature Humidity Control

Overview

The 12V STC-3028 Dual Digital Thermostat Temperature Humidity Control is a high-precision, dual-channel temperature and humidity controller designed for IoT-based applications. This component provides accurate and reliable temperature and humidity control, making it ideal for use in various industries, including HVAC, industrial automation, and smart home systems.

Functionality

The STC-3028 is a microcontroller-based thermostat that measures and controls both temperature and humidity levels. It features two independent channels, allowing users to monitor and control temperature and humidity simultaneously. The device is equipped with a high-accuracy temperature sensor (0.5C) and a humidity sensor (5%RH), ensuring precise readings.

Key Features

Dual-Channel Control: The STC-3028 offers two independent channels, enabling users to monitor and control temperature and humidity simultaneously.
High-Accuracy Sensors: The device features high-accuracy temperature (0.5C) and humidity (5%RH) sensors, ensuring precise readings.
Microcontroller-Based: The STC-3028 is built around a microcontroller, providing advanced control capabilities and flexibility.
Digital Display: The component features a clear and bright digital display, providing real-time temperature and humidity readings.
Alarm Function: The STC-3028 offers an alarm function, which can be set to trigger when temperature or humidity levels exceed setpoints.
Relay Outputs: The device is equipped with two relay outputs, allowing users to control external devices, such as heaters, coolers, or humidifiers, based on temperature and humidity readings.
12V Power Supply: The STC-3028 operates on a 12V power supply, making it suitable for use in a variety of applications.
Compact Design: The component features a compact design, making it ideal for use in space-constrained applications.

Operating Voltage

12V DC

Operating Current

200mA

Temperature Measurement Range

-50C to 120C

Temperature Accuracy

0.5C

Humidity Measurement Range

10% to 90% RH

Humidity Accuracy

5% RH

Relay Output

2x SPDT Relays, 250V AC/5A, 30V DC/5A

Alarm Function

Yes, with adjustable setpoints

Digital Display

3-Digit, 7-Segment LED Display

Dimensions

70mm x 35mm x 20mm

Applications

HVAC Systems

Industrial Automation

Smart Home Systems

Greenhouse Automation

Laboratory Equipment

Food Storage and Processing

Certifications

RoHS Compliant

CE Certified

Warranty

1-Year Limited Warranty

The 12V STC-3028 Dual Digital Thermostat Temperature Humidity Control is a versatile and reliable component suitable for a wide range of IoT-based applications. Its high-accuracy sensors, advanced control capabilities, and compact design make it an ideal choice for applications requiring precise temperature and humidity control.

Pin Configuration

12V STC-3028 Dual Digital Thermostat Temperature Humidity Control Pinout Documentation
The 12V STC-3028 Dual Digital Thermostat Temperature Humidity Control is a popular IoT component used for regulating temperature and humidity in various applications, including greenhouses, incubators, and HVAC systems. This documentation provides a detailed explanation of the pins and their connections.
Pinout Structure:
The STC-3028 has a total of 10 pins, which are divided into two rows of 5 pins each. The pinout structure is as follows:
Row 1 (Left to Right):
1. VCC (Pin 1): 12V Power Supply Input
Connect to a 12V DC power source.
Ensure the power supply is stable and regulated to avoid damage to the module.
2. GND (Pin 2): Ground
Connect to the ground terminal of the power source or a common ground point in the system.
3. T1+ (Pin 3): Temperature Sensor 1 Positive Input
Connect to the positive leg of the temperature sensor (e.g., DS18B20, NTC thermistor).
Ensure proper insulation and shielding of the sensor wiring to minimize noise and interference.
4. T1- (Pin 4): Temperature Sensor 1 Negative Input
Connect to the negative leg of the temperature sensor (e.g., DS18B20, NTC thermistor).
Ensure proper insulation and shielding of the sensor wiring to minimize noise and interference.
5. HUM (Pin 5): Humidity Sensor Input
Connect to the output of a humidity sensor (e.g., DHT11, DHT22).
Ensure proper insulation and shielding of the sensor wiring to minimize noise and interference.
Row 2 (Left to Right):
1. T2+ (Pin 6): Temperature Sensor 2 Positive Input
Connect to the positive leg of the temperature sensor (e.g., DS18B20, NTC thermistor).
Ensure proper insulation and shielding of the sensor wiring to minimize noise and interference.
2. T2- (Pin 7): Temperature Sensor 2 Negative Input
Connect to the negative leg of the temperature sensor (e.g., DS18B20, NTC thermistor).
Ensure proper insulation and shielding of the sensor wiring to minimize noise and interference.
3. RELAY1 (Pin 8): Relay 1 Output
Connect to the input of a relay module or a load (e.g., heater, fan).
Ensure the relay module or load is rated for the required voltage and current.
4. RELAY2 (Pin 9): Relay 2 Output
Connect to the input of a relay module or a load (e.g., heater, fan).
Ensure the relay module or load is rated for the required voltage and current.
5. BUZ (Pin 10): Buzzer Output
Connect to a buzzer or alarm module.
Ensure the buzzer or alarm module is rated for the required voltage and current.
Connection Guidelines:
Use a 12V DC power supply with a stable and regulated output.
Ensure proper insulation and shielding of sensor wiring to minimize noise and interference.
Connect temperature sensors and humidity sensors according to their respective datasheets.
Connect relay modules or loads according to their respective datasheets.
Ensure the buzzer or alarm module is rated for the required voltage and current.
By following these guidelines and properly connecting the pins, you can utilize the 12V STC-3028 Dual Digital Thermostat Temperature Humidity Control for reliable and efficient temperature and humidity regulation in your IoT applications.

Code Examples

12V STC-3028 Dual Digital Thermostat Temperature Humidity Control Documentation

Overview

The 12V STC-3028 Dual Digital Thermostat Temperature Humidity Control is a versatile IoT component designed to regulate temperature and humidity levels in various applications. This component features two independent channels, allowing for the control of two separate temperature and humidity zones. It is suitable for use in home automation, greenhouses, laboratories, and other environments where precise temperature and humidity control is essential.

Pinout and Connections

The STC-3028 has the following pinout:

VCC: 12V power supply
 GND: Ground
 CH1_TEMP: Temperature sensor input for Channel 1
 CH1_HUM: Humidity sensor input for Channel 1
 CH2_TEMP: Temperature sensor input for Channel 2
 CH2_HUM: Humidity sensor input for Channel 2
 OUT1: Relay output for Channel 1
 OUT2: Relay output for Channel 2
 RX: Serial communication input (9600 bps)
 TX: Serial communication output (9600 bps)

Code Examples

### Example 1: Basic Temperature Control using Arduino

In this example, we will demonstrate how to use the STC-3028 to control a temperature zone using an Arduino board.

Hardware Requirements:

Arduino Uno or compatible board
 STC-3028 Dual Digital Thermostat Temperature Humidity Control
 DS18B20 temperature sensor (connected to CH1_TEMP)
 Relay module (connected to OUT1)

Software Code:
```cpp
#include <SoftwareSerial.h>

// Define STC-3028 pins
#define STC_RX 2
#define STC_TX 3

// Create a SoftwareSerial object for STC-3028 communication
SoftwareSerial stcSerial(STC_RX, STC_TX);

void setup() {
  // Initialize STC-3028 serial communication
  stcSerial.begin(9600);

// Set temperature setpoint for Channel 1 to 25C
  stcSerial.print("CH1_TEMP_SET 25
");
}

void loop() {
  // Read temperature from DS18B20 sensor
  int temp = readTemperature();

// If temperature is above setpoint, turn relay ON
  if (temp > 25) {
    digitalWrite(OUT1, HIGH);
  } else {
    digitalWrite(OUT1, LOW);
  }

delay(1000);
}

int readTemperature() {
  // Read temperature from DS18B20 sensor (implementation omitted)
  return 0; // Replace with actual temperature reading
}
```
### Example 2: Humidity Control using Raspberry Pi (Python)

In this example, we will demonstrate how to use the STC-3028 to control a humidity zone using a Raspberry Pi.

Hardware Requirements:

Raspberry Pi (any model)
 STC-3028 Dual Digital Thermostat Temperature Humidity Control
 DHT11 humidity sensor (connected to CH2_HUM)
 Relay module (connected to OUT2)

Software Code:
```python
import serial
import time

# Define STC-3028 serial communication port
stc_port = '/dev/ttyUSB0'

# Initialize STC-3028 serial communication
stc_serial = serial.Serial(stc_port, 9600, timeout=1)

# Set humidity setpoint for Channel 2 to 60%
stc_serial.write(b'CH2_HUM_SET 60
')

while True:
    # Read humidity from DHT11 sensor
    humidity = readHumidity()

# If humidity is above setpoint, turn relay ON
    if humidity > 60:
        stc_serial.write(b'OUT2_ON
')
    else:
        stc_serial.write(b'OUT2_OFF
')

time.sleep(1)

def readHumidity():
    # Read humidity from DHT11 sensor (implementation omitted)
    return 0  # Replace with actual humidity reading
```
Note: In both examples, the STC-3028 is configured to use its default settings. Please refer to the STC-3028 datasheet for a comprehensive list of commands and settings.