Seeed Studio Studio Grove LTC2941 Coulomb Counter Module 3.3-5V - I2C Interface

Name: Seeed Studio Studio Grove LTC2941 Coulomb Counter Module 3.3-5V - I2C Interface
Brand: Seeed Studio
SKU: SENS-2808
Price: 1339.00 INR
Availability: OutOfStock

₹1,339.00 (Inclusive of all taxes)

Out of Stock

The Seeed Studio Studio Grove LTC2941 Coulomb Counter Module provides precise measurement of accumulated battery charge and discharge for 3.3V to 5V systems. Featuring an I2C interface, it integrates seamlessly with Arduino, Raspberry Pi, and other microcontrollers for accurate battery fuel gauging and energy monitoring.

Features

High-precision coulomb counter based on Linear Technology LTC2941 IC.
Wide operating voltage range from 2.7V to 5.5V, ideal for single-cell Li-Ion batteries.
Integrated I2C (SMBus) interface with a default address of 0x64 for easy communication.
Delivers high-accuracy analog integration with typical charge accuracy of ±1%.
Grove ecosystem connector simplifies wiring and prototyping.

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Description

The Grove Coulomb Counter Module utilizes the LTC2941 precision coulomb counter IC to measure the total charge (in amp-hours) passing through a sense resistor placed between a battery and its load or charger. This method of analog integration provides a highly accurate means of tracking battery state-of-charge (SOC), remaining capacity, and monitoring charge/discharge cycles.

Designed for low-power handheld and portable electronics, the module operates across a wide temperature range and is perfectly suited for integration into battery-powered projects, IoT devices, and portable instrumentation where monitoring energy consumption is critical. Its I2C interface allows for straightforward data retrieval and system integration.

Key Features

Precision Charge Integration: Accurately measures accumulated battery charge and discharge via a high-precision analog integrator.
Optimized for Single-Cell Li-Ion: Operating voltage range from 2.7V to 5.5V aligns perfectly with 3.7V nominal Li-Ion/Polymer batteries.
Standard Digital Interface: Communicates via the I2C (SMBus compatible) protocol, simplifying integration with most microcontrollers.
High Accuracy: Provides typical charge measurement accuracy of ±1%, enabling reliable battery state monitoring.
Grove System Compatibility: Features the standard 4-pin Grove connector for plug-and-play connectivity with a wide range of Seeed Studio Studio and third-party base shields.
Compact Form Factor: Small PCB footprint allows for easy integration into space-constrained projects and enclosures.

Applications

Precise battery fuel gauging and state-of-charge (SOC) monitoring in portable electronics and IoT devices.
Energy consumption profiling for low-power handheld products, MP3 players, digital cameras, and GPS units.
Monitoring charge/discharge cycles and capacity in custom Li-Ion/Polymer battery pack management systems.
Integration into solar-powered or energy-harvesting projects to track accumulated energy inflow and usage.
Prototyping and development of power management solutions for Arduino, Raspberry Pi, and ESP32-based projects.

Technical Specifications

Manufacturer Part Number	LTC2941
Operating Voltage	2.7V to 5.5V
Interface	I2C (SMBus)
Default I2C Address	0x64
Charge Measurement Accuracy	Typical ±1%
Operating Temperature	0°C to +70°C
Primary Application	Battery Coulomb Counting / Fuel Gauging
Connector Type	Grove 4-pin
Module Dimensions (LxWxH)	Approx. 13 x 9 x 1 cm
Module Weight	Approx. 0.009 kg

Frequently Asked Questions

What is the operating voltage range of the Grove LTC2941 module?

The module is designed to operate from 2.7V to 5.5V DC. This range is specifically chosen to be compatible with single-cell Lithium-Ion or Lithium-Polymer batteries, which have a nominal voltage of 3.7V. The module itself is powered through the Grove connector's VCC pin.

How do I communicate with this module and what is the I2C address?

The module communicates via the I2C (also SMBus compatible) protocol. The default 7-bit I2C address for the LTC2941 IC on this module is 0x64. You will need to connect the module's SDA and SCL pins to your microcontroller's corresponding I2C pins and use a library like Arduino's Wire.h to read the accumulated charge data.

How accurate is the charge measurement, and what does it measure?

The LTC2941 IC provides a typical charge measurement accuracy of ±1%. It measures the integrated current (in amp-hours or coulombs) that has passed through an external sense resistor placed in series with the battery. This allows you to calculate the total charge consumed from or delivered to the battery, enabling precise battery fuel gauging.

What is included in the package and what cable is provided?

The package includes the Grove LTC2941 Coulomb Counter Module PCB and one JST-to-Grove cable. This cable allows you to connect the module's JST connector for battery sense lines to the standard 4-pin Grove connector for power and I2C communication, facilitating easy integration with Grove ecosystem shields.