As the Internet of Things (IoT) continues to grow in everyday life - powering everything from smart home appliances to industrial monitoring systems - one persistent challenge remains the power supply. Devices such as smart doorbells or factory sensors often require frequent battery replacements, especially when installed in hard-to-reach places. This leads to decline in user experience, increased maintenance costs, and environmental pollution caused by battery replacements.
To overcome these limitations, DFRobot introduces the DFM8001 Ambient Energy Harvesting Kit, a complete, compact, and efficient solution that enables devices to harness energy from their surrounding environment. By collecting mechanical, thermal, solar, and radio frequency energy—even at extremely low levels—this kit offers a reliable, maintenance-free power source for modern IoT systems.
The DFM8001 Ambient Energy Harvesting Module
The module features dynamic MPPT (Maximum Power Point Tracking), which periodically checks the status of the input source and adjusts to the maximum power point to ensure efficient collection of weak energy. Additionally, the module integrates charge and discharge management, energy storage management, and dual regulated output functions.
This energy harvesting module DFM8001 includes all the necessary components for operation. To use it, simply connect the module’s configuration pins to GND/Vbuck and connect it to the energy harvesting device, energy storage device, and power-consuming device to build an ambient energy power supply system. The DFM8001 module is particularly suitable for use with amorphous silicon, organic, and dye-sensitized photovoltaic cells, showing excellent energy storage performance under weak light conditions such as low sunlight or indoor lighting.
The DFM8001 module is designed with multiple output voltages and selectable collection voltage thresholds, offering flexibility for different user requirements. In the future, it can be combined with the BLE Beacon series to create a wireless sensor node ecosystem, making it a comprehensive solution for various ambient energy power systems.
To further facilitate integration, DFRobot offers the DFM8001 module with dimensions of 15x15x3mm, which can be easily integrated into various products to provide ambient energy power support.
A Complete Kit for Developers and Integrators
To make implementation easier, DFRobot also provides the DFM8001 Ambient Energy Harvesting Kit, which includes:
- DFM8001 energy harvesting evaluation board
- Amorphous silicon photovoltaic panels
- Supercapacitor energy storage module
This ready-to-use kit simplifies the construction of indoor ambient energy power systems, allowing users to conveniently assemble a self-sustaining power setup.
Key Features
- Harnesses energy from mechanical, thermal, solar, and radio frequency sources
- Efficiently collects and stores extremely weak energy (microwatt level)
- Dynamic MPPT for optimal power point tracking
- Integrated charge/discharge and energy storage management
- Dual-channel voltage regulation outputs
- Compact size: 15x15x3.5mm
- Compatible with various types of energy sources and storage devices
Applications
- Indoor light energy harvesting
- Self-powered Internet of Things (IoT) nodes
- Smart home systems
- Industrial monitoring
- Asset management
- Ambient IoT
Technical Specifications
| Parameter | Value |
|---|---|
| Operating Voltage | 3.3V–5.5V DC |
| Cold Start Condition | Input ≥ 400mV @ 15µW |
| Sustaining Voltage After Cold Start | 150mV |
| Input Voltage Range | 150mV–5V |
| MPPT Ratios | 70%, 75%, 85%, 90% (adjustable) |
| MPPT Detection Frequency | 5 times per second |
| LDO Low Voltage Output | 1.2–1.8V, 20mA (with switch) |
| LDO High Voltage Output | 1.8–4.1V, 80mA (with switch) |
| Adjustable Overcharge Protection | Adjustable: 2.7V–4.5V |
| Adjustable Overdischarge Protection | Adjustable: 2.2V–3.6V |
| Energy Storage Support | Rechargeable batteries or capacitors |
| Low Battery Warning | Yes |
| Backup Battery Support | Disposable battery supported |
| Max Power (Amorphous Panel) | 90µW @ 200 Lux |
| Module Size | 15x15x3.5mm |
| Panel Size | 45x45mm |
| Amorphous silicon light energy panel maximum power point: | 70% |
| Amorphous silicon light energy panel maximum power: | 90uW@200Lux |
Conclusion
As IoT devices become more common, the demand for low maintenance and low power solution is also growing, DFRobot’s DFM8001 Ambient Energy Harvesting Module is a great response to this need. Thanks to its easy-to-integrate design, affordable price, and versatility, the DFM8001 brings us closer to a future where IoT gadgets run effortlessly on the energy already around them — no cables, no battery replacements, and no downtime.
To learn more details, including how to get started with this kit and simple project examples, check out our upcoming articles.
Applicable Part Numbers
| Digikey Part Number | Manufacturer Part Number |
|---|---|
| 1738-KIT0197-ND | KIT0197 |
| 1738-DFR1108-ND | DFR1108 |
| 1738-TEL0149-ND | TEL0149 |