Witty Fox 3.7V 400mAh Li-Ion Battery

Witty Fox 3.7V 400mAh Li-Ion Battery Documentation

Overview

The Witty Fox 3.7V 400mAh Li-Ion Battery is a compact, high-capacity rechargeable lithium-ion battery designed for use in various IoT applications. This battery features a voltage of 3.7V, a capacity of 400mAh, and a compact form factor, making it an ideal choice for powering small to medium-sized IoT devices.

Specifications

Voltage: 3.7V
 Capacity: 400mAh
 Chemistry: Lithium-Ion (Li-Ion)
 Dimensions: 35mm x 20mm x 8mm
 Weight: 12g
 Discharge Current: 1C (400mA)
 Cycle Life: Up to 300 cycles

Usage Examples

### Example 1: Powering an Arduino IoT Project

In this example, we will demonstrate how to use the Witty Fox 3.7V 400mAh Li-Ion Battery to power an Arduino IoT project. We will use an Arduino Nano board, a Wi-Fi module, and a sensor to create a simple IoT device.

Hardware Requirements:

Arduino Nano board
 Witty Fox 3.7V 400mAh Li-Ion Battery
 Wi-Fi module (e.g., ESP8266)
 Sensor (e.g., DHT11 temperature and humidity sensor)
 Jumper wires

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

const char ssid = "your_wifi_ssid";
const char password = "your_wifi_password";

WiFiClient client;

void setup() {
  Serial.begin(9600);
  
  // Initialize Wi-Fi module
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to Wi-Fi...");
  }

Serial.println("Connected to Wi-Fi");
  Serial.println("Initializing sensor...");
  
  // Initialize sensor
  dht.begin();
}

void loop() {
  // Read sensor data
  int temperature = dht.readTemperature();
  int humidity = dht.readHumidity();
  
  // Send data to the cloud
  client.println("GET /api/data HTTP/1.1");
  client.println("Host: your_cloud_host");
  client.println("Content-Type: application/json");
  client.println("{""temperature"":" + String(temperature) + ",""humidity"":" + String(humidity) + "}");
  client.println();
  
  delay(10000);
}
```
In this example, we use the Witty Fox 3.7V 400mAh Li-Ion Battery to power the Arduino Nano board, Wi-Fi module, and sensor. The code initializes the Wi-Fi module, sensor, and sends data to the cloud using HTTP requests.

### Example 2: Powering a Raspberry Pi Pico IoT Project

In this example, we will demonstrate how to use the Witty Fox 3.7V 400mAh Li-Ion Battery to power a Raspberry Pi Pico IoT project. We will use a Raspberry Pi Pico board, a Wi-Fi module, and a sensor to create a simple IoT device.

Hardware Requirements:

Raspberry Pi Pico board
 Witty Fox 3.7V 400mAh Li-Ion Battery
 Wi-Fi module (e.g., ESP8266)
 Sensor (e.g., BME280 temperature, humidity, and pressure sensor)
 Jumper wires

Code Example:
```python
import machine
import utime
import ujson
import urequests

wifi_ssid = "your_wifi_ssd"
wifi_password = "your_wifi_password"

sensor = machine.I2C(0, sda=machine.Pin(0), scl=machine.Pin(1), freq=400000)
bme280 = machine.BME280(i2c=sensor)

wifi = machine.WLAN(machine.WLAN.STA_IF)
wifi.active(True)
wifi.connect(wifi_ssid, wifi_password)

while not wifi.isconnected():
    utime.sleep(1)

print("Connected to Wi-Fi")

while True:
    temperature, pressure, humidity = bme280.read()
    data = ujson.dumps({"temperature": temperature, "pressure": pressure, "humidity": humidity})
    response = urequests.post("http://your_cloud_host/api/data", data=data, headers={"Content-Type": "application/json"})
    response.close()
    utime.sleep(10)
```
In this example, we use the Witty Fox 3.7V 400mAh Li-Ion Battery to power the Raspberry Pi Pico board, Wi-Fi module, and sensor. The code initializes the Wi-Fi module, sensor, and sends data to the cloud using HTTP requests.

Note: These examples are for illustration purposes only and may require modifications to work with your specific IoT project. Always ensure to follow proper safety precautions when working with batteries and electrical components.