Generic DHT11 Serial Temperature and Humidity Sensor Module - 3.3V/5V, 9600 Baud

Name: Generic DHT11 Serial Temperature and Humidity Sensor Module - 3.3V/5V, 9600 Baud
Brand: Generic
SKU: SENS-3364
Price: 269.00 INR
Availability: OutOfStock

₹269.00 (Inclusive of all taxes)

Out of Stock

This DHT11 sensor module integrates an onboard microcontroller to provide calibrated temperature and humidity readings via a simple serial interface (9600 baud), eliminating the timing complexities of the standard single-wire protocol. It is directly compatible with 3.3V and 5V logic systems, including Arduino, Raspberry Pi, ESP32, and other microcontrollers.

Features

Serial UART output at 9600 baud simplifies integration
Wide compatibility with 3.3V and 5V power/logic systems
Integrated microcontroller handles DHT11 protocol internally
Measures temperature (±2°C) and relative humidity (±5% RH)
Standard 2.54mm pin header for easy breadboard/protoboard use

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Description

The Serial DHT11 Module is an enhanced version of the popular DHT11 digital temperature and humidity sensor. It incorporates a dedicated microcontroller that communicates with the DHT11 sensor chip internally and outputs the processed data via a standard TTL-level serial UART interface. This design abstracts away the precise timing requirements of the native single-wire protocol, significantly simplifying software development.

The module operates from a 3.3V to 5V DC supply, drawing a low operating current of ≤2.5mA. It provides calibrated digital readings for ambient temperature with a typical accuracy of ±2°C and relative humidity with a typical accuracy of ±5% RH. The compact form factor and standard pin spacing make it suitable for integration into prototypes, environmental monitoring stations, and IoT devices.

Key Features

Protocol Abstraction: Onboard microcontroller handles DHT11 single-wire communication, providing clean serial data output.
Dual Voltage Support: Designed for seamless operation with both 3.3V and 5V microcontroller ecosystems.
Simplified Integration: Standard 9600 baud UART interface allows for direct connection to serial ports without complex timing code.
Low Power Consumption: Consumes ≤2.5mA during operation, suitable for battery-powered applications.
Compact & Breadboard-Friendly: Features a 2.54mm pitch pin header for easy prototyping on standard solderless breadboards.
Calibrated Digital Output: Delivers stable, calibrated digital readings for temperature and humidity.

Applications

Indoor environmental monitoring and data logging systems
HVAC and climate control system prototyping
IoT sensor nodes for smart home automation
Educational projects for teaching sensor interfacing and data acquisition
Basic weather station and greenhouse monitoring setups

Technical Specifications

Item Type	Sensor Module
Model Number	DHT11
Rated Voltage	3.3 to 5 VDC
Operating Current	≤ 2.5 mA
Temperature Accuracy	±2 °C (typical)
Humidity Accuracy	±5% RH (typical)
Communication Interface	Serial UART (TTL, 9600 baud)
Pin Pitch	2.54 mm
Dimensions (L x W)	30 mm x 14 mm
Weight	5 g

Frequently Asked Questions

What is the difference between this serial module and a standard DHT11 sensor?

This module contains an onboard microcontroller that communicates with the DHT11 chip internally and outputs the data via a standard TTL serial UART interface at 9600 baud. This eliminates the need for your main microcontroller to handle the precise single-wire timing protocol required by a bare DHT11 sensor, greatly simplifying software development.

What voltage levels does this module support?

The module is designed to operate with both 3.3V and 5V power supplies and logic levels. You can connect its VCC pin to either 3.3V or 5V, and its serial TX output will be at the same logic level, ensuring compatibility with a wide range of microcontrollers like Arduino (5V), ESP32 (3.3V), and Raspberry Pi (3.3V).

How do I connect and read data from this sensor module?

Connect the module's VCC and GND pins to your system's power (3.3V or 5V) and ground. Connect the module's TX pin to the RX pin of your microcontroller's UART serial port. In your code, simply initialize a serial connection at 9600 baud and read the ASCII-formatted temperature and humidity strings sent by the module.

What is the typical measurement accuracy and response time?

The integrated DHT11 sensor provides temperature readings with a typical accuracy of ±2°C and relative humidity with ±5% RH accuracy. The sensor has a sampling period of at least 2 seconds; the module's serial output will update at this rate. The response time is suitable for monitoring gradual environmental changes.