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Product description: Kit for obtaining energy from the environment in rooms - DFM8001 - DFRobot KIT0197
The DFRobot Ambient Energy Harvesting Kit with the DFM8001 module is an innovative solution that uses various energy sources, including mechanical, thermal, solar and radio . The kit includes the DFM8001 board, an amorphous silicon solar panel and supercapacitor modules. With its dynamic Maximum Power Point Tracking (MPPT) function, the module provides efficient energy collection and management, enabling low-current IoT applications, Smart Home systems and industrial monitoring. The kit offers many adaptation possibilities, making it a universal solution in the field of energy.
The manufacturer has prepared a detailed user guide that will make it much easier to start working with the set.
Main features of the set
- Harvesting energy from mechanical, thermal, solar and radio sources
- Efficient energy storage from low to microwatt levels
- Dynamic Maximum Power Point Tracking (MPPT)
- Integrated functions for charging, discharging and energy storage management
- Dual stabilized output voltage
- Compact dimensions 57 x 42 mm
- Includes DFM8001 evaluation board, photovoltaic panels and supercapacitors
Examples of applications
- Collecting light energy indoors
- Self-powered IoT nodes
- Smart home systems
- Industrial monitoring
- Resource Management
Arrangement of components on the board
- Connector for connecting an external energy storage device (midpoint connector for DCSC, used for dual-cell supercapacitor)
- Connector for configuring the energy storage device for external components or on-board supercapacitors
- Connector for connecting the main battery
- Jumper to configure the use of dual-cell supercapacitors; set to 1 when used
- Jumper to configure the use of the main battery; set PRIM_1–PRIM_4 to 1 when the main battery is in use
- Output S0: High level indication when LDO output is available / Output S1: High level indication when main battery is active / Output S2: High level indication during MPPT calibration
- Connector for connecting an external power source
- Output for monitoring a successful cold start.
- Connector for configuring the protective voltage for energy storage devices and the output voltage for LDO
- Connector for MPPT (Maximum Power Point Tracking) configuration
- Jumper configuring the main battery parameters; set PRIM1–PRIM4 to 1 when the battery is in use, and solder resistors R7 and R8
- In custom mode, a connector for configuring the energy storage device threshold voltage and the LDO output voltage using resistors R1 - R6
- Built-in capacitor
- LDO Low Voltage Output Connector
- Jumper to control the enablement of high and low voltage LDO outputs
- LDO High Voltage Output Connector
Connecting the module
To properly configure the system, you must:
- Set all jumpers to default settings
- Connect a supercapacitor (0.22 F) to the board, making sure that its initial voltage is lower than Voc
- Connect the photovoltaic panel to the appropriate terminals on the board, making sure it is securely fastened
- Observe the increase in Vbuck voltage, which should reach a value of about 2.2 V, which means that the system is starting to charge the capacitor
Do not change the jumper configuration without fully understanding all settings as this may damage the module.
Technical specification DFRobot KIT0197
- Operating voltage: 3.3 V to 5.5 V DC
- Input voltage range: 150 mV to 5 V
- Cold Start Input Voltage: ≥ 400 mV / 15 uW
- Cold Start Holding Voltage: 150 mV
- MPPT ratio: 70%, 75%, 85%, 90% (adjustable)
- MPPT auto detection frequency: 5 times per second
- Dual LDO voltage regulation output:
- Low voltage: 1.2 V to 1.8 V / 20 mA (with switch)
- High voltage: 1.8 V to 4.1 V / 80 mA (with switch)
- Energy storage management:
- Adjustable overcharge protection: 2.7V to 4.5V
- Adjustable over-discharge protection: 2.2V to 3.6V
- Compatible with any type of battery or capacitor
- Low battery warning
- LDO output availability indication
- Supports disposable backup battery
- Maximum parameters of the photovoltaic panel: 90 uW at 200 lux
- Plate dimensions: 57 x 42 mm
- Solar panel dimensions: 45 x 45 mm
Kit Contents
- Ambient Energy Harvesting Module Board - DFM8001 x1
- Supercapacitor 0.22F x1
- Supercapacitor 1.5F x1
- Amorphous Silicon Photovoltaic Panel x1