The Coulomb Counter is a device to measure the current that your devices or sensors is using. The coulomb (symbol: C) is the International System of Units (SI) unit of electric charge.It is the charge (symbol: Q or q) transported by a constant current of one ampere in one second:1C=1A•1s.

• The Grove - Coulomb Counter 3.3V to 5V is based on LTC2941, its operating range is perfectly suited for single-cell Li-Ion batteries. A precision coulomb counter integrates current through a sense resistor between the battery’s positive terminal and the load or charger. This module measures the amount of amp-hours have been used, if you use a fully charged battery, you can test the amount of battery you have used, the remaining percentage, just like the remaining battery shown in your phone. Vice versa, if you are changring a battery, you can use this module to monitor the charging process.
  
• We have developed more than 400 Grove modules, covering a wide range of applications that can fulfill various needs. Click to explore the Grove Sensor family and get started to Grove your Idea. For all Grove users (especially beginners), we provide you with guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your use of the product.

Features:

• Exceptional accuracy: 1% charge accuracy, allow users to use without being bothered by huge amounts of errors
• High Accuracy Analog Integration: More accurate acquisition of metadata for more precise readings of results
• Grove unified socket: The sensor ensures "Plug and Play" and could be versatile for various applications.

Application:

• Low Power Handheld Products
• Cellular Phones
• MP3 Player
• Cameras
• GPS

Hardware Overview:

ECCN/HTS:

HSCODE 9030900090

USHSCODE 8473301140

UPC         841454121633

EUHSCODE 8473302000

COO        CHINA

EU DoC    1

RoHS         1

UK DoC    1

• Wiki

Package Includes:

• 1 x Grove - Coulomb Counter 3.3V to 5V (LTC2941)
• 1 x Grove Cable