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DFRobot Gravity v2.1.0 - I2C Digital Wattmeter
A module that allows you to measure electric energy consumption of up to 26 V / 8 A. The maximum measurement error is approx. 0,2%. It communicates through an I2C interface. It works with Arduino and Raspberry Pi.
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Description of product: DFRobot Gravity v2.1.0 - digital meter of power consumption I2C
A module that allows you to measure electric energy consumption of up to 26 V / 8 A. The maximum measurement error is approx.0,2%(before the first use, it requires a simple calibration). It can be used tomeasure the actual current consumption or evaluationof the service lifeof the battery.The kit includes a cable adapted to Gravity DFRobot IO Expansion Shield.
Botland is an official distributor of DFRobot open-source hardware. Every roboticist and practitioner of emerging technology has heard at least once of DFRobot solutions, built above all around Arduino. Our range holds original DFRobot products only.
The application of the energy consumption meter
- Solar power management
- The battery indicator
- The indicator of the power consumption of the electric device
The product is compatible withArduino User manual for the connection and sample code can be found onthe website of the manufacturer. |
Example of connection with Arduinoandanalog PH sensor
The chip usesTI INA219system with the zero temperature of drift of monitoring the current/power and resistor of 10mΩ with high power of 2 W and low temperature of drift. The resolution of voltage and current is4 mVand1 mA. The module has4 I2C addressesselectable withDIP switch. It accurately measures the high, bi-directional currents which is especially useful in applications that usesolar orbattery power in which the rechargeable battery should be charged and discharged.
Connection example withRaspberry Pi
Specification of meter of power consumption
- Version: 2.1.0
- Supply voltage: from 3.3 V to 5 V
- Voltage measurement range: 0 V to 26 V
- Resolution voltage: 4 mV
- Error of voltage measurement: up to 0,2% (typical)
- Measuring range of the current: from 0 to 8 A (bi-directional)
- Resolution of the current: 1 mA
- Error of current measurement: up to 2% (typical, it requires manual calibration)
- The range of power measurement: from 0 to 206 W
- Resolution power: 20 mW (hardware) / 4 MW (software)
- Quiescent current: 07 mA
- Interface: I2C Gravity
- I2C address: 0x40, 0x41, 0x44, 0x45
- Dimensions: 30 x 22 mm
- Weight: 4 g
Useful links
| Name | Value |
|---|---|
| Width | 5.5 cm |
| Height | 2.5 cm |
| Depth | 6 cm |
| Weight | 0.015 kg |
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from €8.07
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Delivery in 3–5 days, no inside delivery
from €96.75
The full delivery terms are on the page Delivery and payment.
30 days to return, without giving a reason
If the product does not meet your expectations, you have 30 days from receiving the parcel to withdraw from the contract. The product only has to be complete. The right of return belongs to consumers (a purchase unrelated to business activity).
Complaints
If the product turns out to be faulty, you can make a claim under the guarantee or the statutory warranty. We handle claims without delay, at the latest within 14 working days of receiving the report together with the goods.
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Instructions and documents
GPSR data
Product information
This product is a component intended for further assembly or prototyping. It is not a finished product within the meaning of the product safety regulations.
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