WCMCU-75 LM75A High Speed I2C Temperature Sensor Module

Name: WCMCU-75 LM75A High Speed I2C Temperature Sensor Module
Brand: Generic
SKU: SENS-3777
Price: 93.00 INR
Availability: OutOfStock

₹93.00 (Inclusive of all taxes)

Out of Stock

The WCMCU-75 is a compact digital temperature sensor module based on the LM75A IC, featuring a high-speed I2C interface for easy integration with microcontrollers like Arduino, ESP32, and Raspberry Pi. It provides precise temperature monitoring from -55°C to +125°C with 0.125°C resolution.

Features

High-speed digital temperature sensor based on LM75A IC.
I2C interface with up to 8 selectable addresses for bus operation.
Wide operating voltage range from 2.8V to 5.5V DC.
High 11-bit ADC resolution with ±0.5°C typical accuracy.
Ultra-low shutdown current of ~1.0µA for power-sensitive applications.

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Description

The WCMCU-75 module utilizes the LM75A digital temperature sensor IC, providing a calibrated, linearized digital output via a two-wire I2C serial bus. The sensor’s internal 11-bit ADC delivers a temperature resolution of 0.125°C across its full -55°C to +125°C range, making it suitable for precise thermal monitoring.

Designed for stable performance in embedded systems, the module features configurable address pins (A0-A2), allowing up to eight devices to share a single I2C bus without conflict. Its low operating current and ultra-low-power shutdown mode enable deployment in battery-powered or energy-conscious automation and IoT projects.

Key Features

Digital temperature sensing with LM75A high-precision IC.
I2C serial interface for straightforward microcontroller communication.
Wide 2.8V to 5.5V supply range compatible with 3.3V and 5V logic systems.
Compact PCB footprint (20mm x 14mm) for space-constrained designs.
Configurable I2C address selection supports multi-sensor networks.
Low-power design with typical 1-2mA active current and 1µA shutdown.
High 11-bit ADC resolution ensures detailed temperature data.
Robust performance across the full industrial temperature spectrum.

Applications

Embedded system thermal management for microcontrollers and processors.
Environmental monitoring in IoT and smart home automation nodes.
Industrial control and automation for equipment temperature supervision.
Battery-powered data loggers and portable measurement devices.
Thermal protection and fan control in electronic enclosures.

Technical Specifications

Sensor IC	LM75A
Interface Type	I2C
Operating Voltage	2.8V–5.5V DC
Temperature Range	-55°C to +125°C
Resolution	0.125°C
ADC Resolution	11-bit
Typical Accuracy	±0.5°C
Operating Current	Approx. 1–2mA
Shutdown Current	Approx. 1.0µA
Address Support	Up to 8 selectable addresses
Board Size	20 x 14 mm
Sensor Type	Digital IC Temperature Sensor

Frequently Asked Questions

What is the operating voltage range for this LM75A module?

The module operates from 2.8V to 5.5V DC, making it directly compatible with both 3.3V and 5V microcontroller systems like Arduino, ESP32, and Raspberry Pi without requiring a level shifter.

How do I connect multiple LM75A sensors on the same I2C bus?

The module provides three address selection pins (A0, A1, A2). By setting these pins to logic high or low, you can assign one of eight unique I2C addresses, allowing up to eight sensors to share a single bus without address conflicts.

What is the temperature accuracy and resolution of this sensor?

The LM75A IC provides a typical accuracy of ±0.5°C and a high 11-bit ADC resolution, corresponding to a temperature resolution of 0.125°C across its full measurement range from -55°C to +125°C.

Can this sensor be used in battery-powered projects?

Yes, its low operating current (approx. 1-2mA) and extremely low shutdown current (~1.0µA) make it well-suited for battery-powered applications. You can put the sensor into shutdown mode between readings to conserve power.