DFM8001 Indoor Ambient Energy Harvesting Kit

DFM8001 Indoor Ambient Energy Harvesting Kit Documentation

Overview

The DFM8001 Indoor Ambient Energy Harvesting Kit is a self-sustaining power solution designed for low-power indoor IoT applications. The kit consists of a photovoltaic cell, an energy harvesting module, a rechargeable battery, and a low-dropout (LDO) regulator. It harnesses ambient light energy from indoor environments to power small-scale IoT devices, eliminating the need for battery replacements or external power sources.

Technical Specifications

Photovoltaic Cell:
	+ Maximum Power Output: 5V, 15mA
	+ Operating Temperature Range: -20C to 40C
 Energy Harvesting Module:
	+ Input Voltage Range: 2.5V to 5V
	+ Output Voltage: 4.2V (max)
	+ Storage Capacity: 20mAh rechargeable battery
 LDO Regulator:
	+ Output Voltage: 3.3V or 1.8V (selectable)
	+ Maximum Output Current: 100mA

Code Examples

### Example 1: Basic Power Management using Arduino

In this example, we'll use the DFM8001 to power an Arduino board and read the voltage level of the energy harvesting module.

Hardware Connection

Connect the DFM8001's energy harvesting module output to the Arduino board's VIN pin.
 Connect the LDO regulator's output (3.3V or 1.8V) to the Arduino board's 3.3V or 1.8V pin, respectively.

Arduino Code
```c
const int voltagePin = A0;  // Connect the energy harvesting module output to Arduino's A0 pin

void setup() {
  // Initialize the serial communication
  Serial.begin(9600);
}

void loop() {
  int voltageValue = analogRead(voltagePin);
  float voltage = (voltageValue  5.0) / 1023.0;  // Calculate the voltage level
  Serial.print("Energy Harvesting Module Voltage: ");
  Serial.println(voltage);
  delay(1000);
}
```
### Example 2: Powering a Low-Power Wi-Fi Module using ESP32

In this example, we'll use the DFM8001 to power an ESP32 Wi-Fi module and send data to a cloud-based server.

Hardware Connection

Connect the DFM8001's energy harvesting module output to the ESP32's VIN pin.
 Connect the LDO regulator's output (3.3V) to the ESP32's 3.3V pin.

ESP32 Code (using Arduino IDE)
```c
#include <WiFi.h>

const char ssid = "your_ssid";
const char password = "your_password";
const char serverURL = "http://example.com/data";

WiFiClient client;

void setup() {
  Serial.begin(9600);
  delay(1000);

// Initialize Wi-Fi
  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 DFM8001...");
}

void loop() {
  int voltageValue = analogRead(A0);  // Read the energy harvesting module output
  float voltage = (voltageValue  5.0) / 1023.0;

// Send data to the server
  HTTPClient http;
  http.begin(client, serverURL);
  http.addHeader("Content-Type", "application/x-www-form-urlencoded");
  int httpResponseCode = http.POST("voltage=" + String(voltage));
  http.end();

Serial.println("Data sent to server");
  delay(60000);  // Send data every 1 minute
}
```
These examples demonstrate the basic usage of the DFM8001 Indoor Ambient Energy Harvesting Kit in powering low-power IoT devices. Please note that the code examples are for illustrative purposes only and may require modifications to suit specific application requirements.