Witty Fox 3.7V 7000mAh Li-Ion Battery

Witty Fox 3.7V 7000mAh Li-Ion Battery Documentation

Overview

The Witty Fox 3.7V 7000mAh Li-Ion Battery is a high-capacity rechargeable battery designed for use in a wide range of IoT applications. Its compact size, high energy density, and long cycle life make it an ideal choice for powering IoT devices, robots, drones, and other portable electronics.

Specifications

Nominal Voltage: 3.7V
 Capacity: 7000mAh
 Chemistry: Lithium-Ion (Li-Ion)
 Cycle Life: Up to 500 cycles
 Dimensions: 69.5mm x 51.5mm x 18.5mm
 Weight: approximately 150g

Code Examples

Here are three code examples demonstrating how to use the Witty Fox 3.7V 7000mAh Li-Ion Battery in various contexts:

Example 1: Arduino Basics

This example shows how to use the battery to power an Arduino board and read the battery's voltage level.

Hardware Requirements:

Witty Fox 3.7V 7000mAh Li-Ion Battery
 Arduino Board (e.g., Arduino Uno)
 Jumper wires
 Breadboard
 Multimeter (optional)

Code:
```c++
const int batPin = A0;  // Analog input pin for battery voltage measurement
const int ledPin = 13;  // LED pin for indicator

void setup() {
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  int batVal = analogRead(batPin);
  float batVoltage = (batVal  3.3) / 1023.0;  // Convert analog reading to voltage (assuming 3.3V reference)
  Serial.print("Battery Voltage: ");
  Serial.print(batVoltage);
  Serial.println(" V");

if (batVoltage < 3.5) {
    digitalWrite(ledPin, HIGH);  // Turn on LED if battery voltage is low
  } else {
    digitalWrite(ledPin, LOW);
  }

delay(1000);
}
```
Example 2: Raspberry Pi IoT Project

This example demonstrates how to use the battery to power a Raspberry Pi board and create an IoT project that sends battery level updates to a cloud-based dashboard.

Hardware Requirements:

Witty Fox 3.7V 7000mAh Li-Ion Battery
 Raspberry Pi Board (e.g., Raspberry Pi 4)
 Micro-USB cable
 Wi-Fi module (e.g., Edimax EW-7811Un)
 Breadboard
 Jumper wires

Code:
```python
import RPi.GPIO as GPIO
import time
import requests

GPIO.setmode(GPIO.BCM)
GPIO.setup(17, GPIO.IN)  # Pin 17 for battery voltage measurement

while True:
    bat_val = GPIO.input(17)
    bat_voltage = (bat_val  3.3) / 1023.0  # Convert digital reading to voltage (assuming 3.3V reference)

if bat_voltage < 3.5:
        print("Low Battery Alert!")
        # Send notification to cloud-based dashboard using API request
        response = requests.post("https://example.com/api/low_battery", json={"device_id": "raspberry_pi", "battery_level": bat_voltage})
        print(response.text)

print("Battery Voltage: {:.2f} V".format(bat_voltage))
    time.sleep(60)  # Update every 1 minute
```
Example 3: Drone Project with ESP32

This example showcases how to use the battery to power an ESP32 board and create a drone project that monitors battery level and sends telemetry data to a ground station.

Hardware Requirements:

Witty Fox 3.7V 7000mAh Li-Ion Battery
 ESP32 Board (e.g., ESP32 DevKitC)
 Drone frame
 Motors
 ESCs (Electronic Speed Controllers)
 Propellers
 Breadboard
 Jumper wires

Code:
```c++
#include <WiFi.h>
#include <ESP32AnalogRead.h>

const char ssid = "drone_wifi";
const char password = "drone_password";
const char telemetryServer = "http://ground_station:8080/telemetry";

WiFiClient client;

void setup() {
  Serial.begin(115200);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");
  Serial.println("Initializing drone systems...");
}

void loop() {
  int batVal = analogRead(32);  // Pin 32 for battery voltage measurement
  float batVoltage = (batVal  3.3) / 1023.0;  // Convert analog reading to voltage (assuming 3.3V reference)

String telemetryData = "bat_voltage=" + String(batVoltage) + "&motor_1_speed=50&motor_2_speed=50";
  client.setServer(telemetryServer, 8080);
  client.println("POST /telemetry HTTP/1.1");
  client.println("Host: " + String(telemetryServer));
  client.println("Content-Type: application/x-www-form-urlencoded");
  client.println("Content-Length: " + String(telemetryData.length()));
  client.println();
  client.println(telemetryData);

Serial.print("Battery Voltage: ");
  Serial.print(batVoltage);
  Serial.println(" V");

delay(1000);
}
```
These examples demonstrate how to use the Witty Fox 3.7V 7000mAh Li-Ion Battery in various IoT applications, including Arduino, Raspberry Pi, and ESP32 projects. By following these examples, you can integrate the battery into your own projects and take advantage of its high capacity and long cycle life.