3V CR2032 Lithium Coin Battery Documentation

Component Name

3V CR2032 Lithium Coin Battery

Description

The 3V CR2032 Lithium Coin Battery is a small, non-rechargeable battery designed for use in a variety of low-power devices, including IoT devices, smart home systems, and other applications where a compact and reliable power source is required.

Functionality

The primary function of the 3V CR2032 Lithium Coin Battery is to provide a stable and reliable source of power to devices that require a small amount of energy. The battery is designed to operate within a specific voltage range, providing a nominal voltage of 3V and a maximum capacity of approximately 220mAh.

Key Features

Compact Size: The CR2032 battery is designed to be compact and lightweight, making it ideal for use in small devices where space is limited.
High Energy Density: Lithium coin batteries have a high energy density, providing a high capacity relative to their size and weight.
Long Shelf Life: The CR2032 battery has a long shelf life, making it suitable for use in devices that may not be used frequently.
Low Self-Discharge: The battery has a low self-discharge rate, ensuring that it retains its charge even when not in use.
Wide Operating Temperature Range: The CR2032 battery can operate over a wide temperature range, making it suitable for use in a variety of environments.
Non-Rechargeable: The CR2032 battery is a non-rechargeable battery, designed to be used once and then replaced.
Low Voltage: The battery provides a nominal voltage of 3V, making it suitable for use in devices that require a low voltage power source.
High Reliability: The CR2032 battery is designed to provide a high level of reliability, making it suitable for use in critical applications.

Diameter

20mm

Height

3.2mm

Weight

approximately 2.5 grams

Terminals

Positive terminal is marked with a "+" sign, and the negative terminal is marked with a "-" sign.

Applications

The 3V CR2032 Lithium Coin Battery is suitable for use in a variety of applications, including

IoT devices

Smart home systems

Wearable devices

Medical devices

Automotive systems

Consumer electronics

Industrial control systems

Safety Precautions

When handling the 3V CR2032 Lithium Coin Battery, it is essential to follow proper safety precautions to avoid damage or injury. These precautions include

Handling the battery with clean, dry hands or gloves

Avoiding short-circuiting the battery

Storing the battery in a cool, dry place

Avoiding exposure to high temperatures or open flames

Following proper disposal procedures for used batteries

Certifications and Compliance

The 3V CR2032 Lithium Coin Battery complies with various regulatory requirements, including

RoHS (Restriction of Hazardous Substances) compliant

REACH (Registration, Evaluation, Authorization, and Restriction of Chemicals) compliant

UL (Underwriters Laboratories) recognized

CE (Conformit Europene) marked

By following proper safety precautions and using the 3V CR2032 Lithium Coin Battery in accordance with its intended use, you can ensure reliable and efficient operation of your devices.

Pin Configuration

Component Documentation: 3V CR2032 Lithium Coin Battery
Overview
The 3V CR2032 Lithium Coin Battery is a compact, non-rechargeable battery commonly used in various IoT devices, such as wearable gadgets, wireless sensors, and remote controls. This documentation provides a detailed explanation of the battery's pins and how to connect them correctly.
Pinout Description
The CR2032 battery has two pins:
1. Positive Terminal (Anode) Pin
Pin Name: +
Pin Function: Supplies positive voltage (3V)
Description: This pin is the positive terminal of the battery and provides the 3V output voltage.
2. Negative Terminal (Cathode) Pin
Pin Name: -
Pin Function: Ground reference
Description: This pin is the negative terminal of the battery and serves as a ground reference for the circuit.
Connection Guidelines
To connect the CR2032 battery correctly:
Step 1: Identify the positive terminal (+) and negative terminal (-) pins on the battery.
Step 2: Connect the positive terminal (+) to the positive input of your device or circuit.
Step 3: Connect the negative terminal (-) to the ground or negative input of your device or circuit.
Important: Ensure the battery is connected with the correct polarity to avoid damage to the device or circuit.
Correct Connection Example
Here's an example of a correct connection:
Connect the positive terminal (+) of the CR2032 battery to the positive input of a microcontroller (e.g., VCC pin).
Connect the negative terminal (-) of the CR2032 battery to the ground pin of the microcontroller (e.g., GND pin).
Notes
Handle the battery with care to avoid short-circuiting or damaging the internal components.
Ensure the battery is properly seated in its holder or connector to prevent loose connections.
Follow proper safety precautions when working with batteries and electronic circuits.
By following these guidelines and connecting the pins correctly, you can power your IoT device or circuit reliably using the 3V CR2032 Lithium Coin Battery.

Code Examples

3V CR2032 Lithium Coin Battery Documentation

Overview

The 3V CR2032 Lithium Coin Battery is a compact, high-energy-density battery designed for various IoT applications, including wearables, sensors, and small devices. This documentation provides an overview of the battery's specifications, features, and code examples to demonstrate its usage in different contexts.

Specifications

Voltage: 3V
 Capacity: 220mAh
 Size: 20mm (diameter) x 3.2mm (height)
 Chemistry: Lithium-Manganese Dioxide (LiMnO2)
 Operating Temperature: -20C to +70C
 Self-Discharge Rate: Less than 2% per year at 20C
 Weight: Approximately 2.5 grams

Features

Long shelf life and low self-discharge rate make it suitable for devices with low power consumption
 Compact size and light weight make it ideal for wearables and small devices
 High energy density and stable voltage output ensure reliable performance

Code Examples

### Example 1: Using CR2032 with an Arduino Board

In this example, we will connect the CR2032 battery to an Arduino Uno board to power a simple LED circuit.

Hardware Requirements

Arduino Uno board
 CR2032 battery
 1k resistor
 LED

Software Requirements

Arduino IDE

Code
```c
const int ledPin = 13; // Choose any digital pin on your Arduino board

void setup() {
  pinMode(ledPin, OUTPUT);
}

void loop() {
  digitalWrite(ledPin, HIGH); // Turn on the LED
  delay(1000); // Wait for 1 second
  digitalWrite(ledPin, LOW); // Turn off the LED
  delay(1000); // Wait for 1 second
}
```
Connections

1. Connect the positive terminal of the CR2032 battery to the Vin pin on the Arduino Uno board.
2. Connect the negative terminal of the CR2032 battery to the GND pin on the Arduino Uno board.
3. Connect the 1k resistor to the digital pin 13 (or any other chosen pin) on the Arduino Uno board.
4. Connect the LED to the other end of the resistor.

### Example 2: Powering a Simple IoT Sensor Node

In this example, we will use the CR2032 battery to power a simple IoT sensor node using a ESP32-WROOM-32 microcontroller board and a DHT11 temperature and humidity sensor.

Hardware Requirements

ESP32-WROOM-32 microcontroller board
 CR2032 battery
 DHT11 temperature and humidity sensor
 Breadboard and jumper wires

Software Requirements

Arduino IDE with ESP32 support

Code
```c
#include <WiFi.h>
#include <DHT.h>

#define DHT_PIN 15 // Choose any digital pin on your ESP32 board
#define DHT_TYPE DHT11

DHT dht(DHT_PIN, DHT_TYPE);

void setup() {
  Serial.begin(115200);
  dht.begin();
}

void loop() {
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.println(" C");
  Serial.print("Humidity: ");
  Serial.print(humidity);
  Serial.println(" %");
  delay(5000); // Wait for 5 seconds
}
```
Connections

1. Connect the positive terminal of the CR2032 battery to the 3.3V pin on the ESP32-WROOM-32 board.
2. Connect the negative terminal of the CR2032 battery to the GND pin on the ESP32-WROOM-32 board.
3. Connect the DHT11 sensor to the chosen digital pin (in this example, pin 15) on the ESP32-WROOM-32 board.
4. Use jumper wires to connect the sensor to the breadboard and the ESP32 board.

Note: In both examples, ensure the correct polarity of the battery connections to avoid damaging the IoT device or the battery itself.