Temperature & Humidity Expansion Board — LM35 + DHT11 Sensor Module

Temperature Humidity Expansion Board integrates LM35 analog temperature sensor and DHT11 digital temperature/humidity sensor for versatile environmental sensing with Arduino and other microcontrollers. Operates on 3.3–5V and includes easy header pins for quick prototyping.

Key Features:

• Sensors: LM35 (analog temperature), DHT11 (digital temperature & humidity).

• Operating voltage: 3.3–5 V DC, compatible with Arduino and ESP boards.

• LM35 provides analog voltage proportional to temperature (°C).

• DHT11 provides temperature and relative humidity via single-wire digital interface.

• Easy-to-use header pins (VCC, GND, DATA) for simple connection.

• Onboard mounting holes and compact PCB for breadboard or enclosure use.

• Ideal for: weather stations, HVAC projects, greenhouse monitoring, IoT prototypes.

Technical Specifications (compact):

• LM35 temp range: typically -55°C to +150°C (sensor accurate range depends on model).

• DHT11 temp range: 0–50°C, humidity: 20–90% RH, typical accuracy ±2°C, ±5% RH.

• Voltage: 3.3–5V DC.

• Interfaces: Analog output (LM35), Digital single-wire (DHT11).

PCB dimension: (specify if known  otherwise omit or add your board size).

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