1. Konec produktuview
The AMONIDA TB446 SHT30 is a high-precision digital temperature and humidity sensor module designed for various applications requiring accurate environmental monitoring. It features a real I2C interface for communication and provides fully calibrated, linearized, and temperature-compensated digital output.
This sensor is compatible with both 3V and 5V microcontrollers, making it versatile for integration into different systems. It offers a wide measurement range for both temperature and humidity, ensuring reliable data collection.

Figure 1: Two AMONIDA SHT30 Temperature Humidity Sensor modules with their respective connecting cables, illustrating the compact design and wiring.
2. Klíčové vlastnosti
- Digitální výstup: Provides fully calibrated, linearized, and temperature-compensated digital signals.
- Rozhraní I2C: Real I2C communication with speeds up to 1MHz.
- Wide Voltage Kompatibilita: Operates with 2.5V to 5.5V DC power supply.
- Rozsah teplot: Measures from -40°C to 125°C (operational environment -40°C to 80°C due to cable/shell limitations).
- Rozsah vlhkosti: Measures 0% to 100% Relative Humidity (RH).
- Vysoká přesnost: ±0.2°C for temperature, ±2% RH for humidity.
- Standard Connector: XH2.54 4P terminal for easy connection.

Figure 2: The SHT30 sensor module shown against a circuit board background, emphasizing its digital output capabilities with calibration, linearization, and temperature compensation.
3. Nastavení a připojení
Follow these steps to properly connect your AMONIDA TB446 SHT30 sensor:
- Identifikujte připojení: The sensor uses an XH2.54 4P terminal. The wires are typically color-coded for easy identification:
- Červený: VCC (Power Supply, 2.5V-5.5V DC)
- Černý: GND (zem)
- Žlutá: SDA (I2C Data Line)
- Bílý: SCL (I2C Clock Line)
- Připojte napájení: Connect the Red wire to your microcontroller's 2.5V-5.5V DC power output and the Black wire to the microcontroller's Ground (GND).
- Connect I2C Interface: Connect the Yellow wire (SDA) to your microcontroller's I2C Data pin and the White wire (SCL) to your microcontroller's I2C Clock pin. Ensure your microcontroller's I2C pins are properly configured.
- Zabezpečená připojení: Ensure all connections are firm and correctly aligned to prevent short circuits or improper data transmission.
The I2C address for the SHT30 sensor is 0x44.
4. Návod k obsluze
Once connected, the SHT30 sensor communicates via the I2C protocol. You will need to write code for your microcontroller (e.g., Arduino, Raspberry Pi) to interact with the sensor.
- Inicializace I2C: In your code, initialize the I2C communication bus on your microcontroller.
- Send Measurement Commands: Send appropriate I2C commands to the sensor to initiate a temperature and humidity measurement. Refer to the SHT30 datasheet for specific command details (e.g., single shot measurement, periodic measurement).
- Číst data: After a measurement is complete, read the digital output data from the sensor via the I2C bus. The sensor will provide raw digital values for temperature and humidity.
- Convert Data: Convert the raw digital values into meaningful temperature (°C or °F) and humidity (%RH) readings using the conversion formulas provided in the SHT30 datasheet. Many libraries for common microcontrollers handle this conversion automatically.

Figure 3: The SHT30 sensor module displayed with a focus on its humidity measurement range of 0-100% RH, set against a digital circuit background.
5. Údržba
The AMONIDA TB446 SHT30 sensor is designed for reliable operation with minimal maintenance. Observe the following guidelines:
- Podmínky prostředí: While the sensor itself can measure up to 125°C, the external shell and connecting wires are rated for -40°C to 80°C. Ensure the sensor is operated within this environmental temperature range to prevent damage to the housing or cables.
- Čistota: Keep the sensor clean and free from dust, dirt, or moisture accumulation on the sensing element, as this can affect accuracy. Use a soft, dry cloth for cleaning if necessary. Avoid using liquids or abrasive materials.
- Fyzická ochrana: Protect the sensor from physical impact or excessive mechanical stress.
- Skladování: When not in use, store the sensor in a dry, non-condensing environment within its specified temperature range.
6. Řešení problémů
If you encounter issues with your SHT30 sensor, consider the following troubleshooting steps:
- No Readings or Incorrect Readings:
- Zkontrolujte zapojení: Verify that all connections (VCC, GND, SDA, SCL) are correctly made and secure.
- Napájení: Ensure the sensor is receiving adequate power (2.5V-5.5V DC).
- Adresa I2C: Confirm that the I2C address (0x44) in your code matches the sensor's address.
- I2C Pull-ups: Ensure your I2C bus has appropriate pull-up resistors (typically 4.7kΩ) on SDA and SCL lines, if not already provided by your microcontroller board.
- Logika kódu: Review your microcontroller code for correct I2C initialization, command sending, and data reading/conversion.
- Environmentální limity: Check if the sensor is operating outside its specified environmental temperature or humidity range, which can affect performance.
- Přerušovaná čtení:
- Uvolněná připojení: Re-check all wiring for any loose contacts.
- Hluk: Ensure the sensor and its wiring are shielded from excessive electrical noise, especially in industrial environments.
7. Specifikace

Figure 4: The SHT30 sensor module with its connecting cable, illustrating the approximate cable length of 36 cm (14.2 inches).
| Parametr | Hodnota |
|---|---|
| Model | TB446 SHT30 |
| Pracovní svtage | 2.5V - 5.5V stejnosměrného proudu |
| Typ výstupu | IIC Digital Signal |
| Výstupní rozhraní | XH2.54 4P Terminal |
| Rozsah měření teploty | -40 °C až 125 °C |
| Recommended Operating Temperature (due to shell/line) | -40 °C až 80 °C |
| Rozsah měření vlhkosti | 0 % až 100 % RH |
| Přesnost teploty | ±0.2 °C |
| Přesnost vlhkosti | ±2 % RH |
| IIC Address | 0x44 |
| Délka kabelu | Přibl. 36 cm (14.2 palců) |
8. Záruka a podpora
For warranty information and technical support, please refer to the documentation provided with your purchase or contact AMONIDA customer service. Keep your purchase receipt for warranty claims.





