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The product is intended for specialists and requires qualified and authorized personnel. The product does not include assembly/use instructions . Putting the product into operation by unqualified persons leads to the loss of the warranty according to the Terms and Conditions on the site.
The specified technical parameters (current, power, etc.) represent maximum allowable values under ideal operating conditions. For safe use and optimal lifespan, it is recommended to operate the product continuously at no more than 50% of the specified maximum values.
Bidirectional voltage current monitor sensor INA219
Compact module for precise measurement of voltage, current and power in DC circuits, ideal for battery management, power supplies and industrial projects. Offers bidirectional current measurement, I2C communication for quick integration with Arduino, ESP32 or Raspberry Pi, integrated 0.1 ohm shunt resistor and calibrated values with typical error up to 1% for stable monitoring.
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INA 219 CJMCU-219 bidirectional current voltage monitor sensor, compatible with Arduino and other development boards.
The INA219 sensor module is a high-precision DC current monitor, specially designed for electronic and industrial projects where accurate voltage, current and power measurement are required. This module includes important features such as bidirectional current measurement, I2C interface, integrated 0.1 ohm shunt resistor, maximum error of only 1 percent, zero drift compensation and the ability to directly read calibrated current and power values.
It can monitor bus voltages between 0 and 26 V, supports currents up to approximately 3.2 A and operates with logic voltage between 3 and 5 V, being compatible with most microcontrollers such as Arduino, ESP32 or Raspberry Pi. Its compact design and low cost make it ideal for battery management systems, power supplies, electric vehicles, telecommunications and applications where stable and energy-efficient measurements are needed.
Specifications:
Measured bus voltage: 0 - 26 V
Maximum measurable current: ~3.2 A (depends on shunt resistance)
Integrated shunt resistance: 0.1 ohm
Supply/logic voltage: 3 - 5.5 V
Interface: I2C with support up to 3.4 MHz
Maximum accuracy: approximate error 1 percent
Offset voltage: approx. 100 uV
Resolution: 12 bits
Programmable calibration register
Support for averaging up to 128 samples for noise reduction
Operating temperature: -40 C to +85 C
Dimensions: 22 x 20mm
Pinout:
| Pine | Name | Function |
|---|---|---|
| VCC | feeding | Powering the module with 3 - 5.5 V |
| GND | Mass | Common electrical reference |
| SDA | I2C data | Data line for I2C communication |
| SCL | I2C clock | Clock line for I2C communication |
| Wine+ | Positive voltage input | Connect the positive side of the circuit to be measured |
| Wine- | Negative voltage input | Connect the negative side of the circuit to be measured after the shunt |
| A0 | Select I2C address | Address bit configuration (GND or VCC) |
| A1 | Select I2C address | Address bit configuration (GND or VCC) |
Use:
Connect the Vcc pin to a 3 - 5 V source and GND to system ground.
Connect the SDA and SCL pins to the microcontroller's I2C bus.
Enter the current to be measured through the Vin+ and Vin- terminals.
Configure the calibration register in the software to obtain direct values in amps and watts.
Uses integrated averaging for applications in high noise environments.
Check the polarity of the connections and avoid exceeding the voltage or current supported by the module.
Produs destinat utilizarii in proiecte electronice, automatizari, prototipare, educatie si cercetare.
Produsul trebuie utilizat numai conform specificatiilor tehnice mentionate in descriere si/sau in documentatia produsului.
Avertismente generale de siguranta:
Nu utilizati produsul la tensiuni, curenti sau temperaturi peste valorile specificate.
Montajul si conectarea trebuie realizate de persoane cu cunostinte tehnice minime in domeniul electric/electronic.
Evitati scurtcircuitele, inversarea polaritatii si conectarea gresita a alimentarii.
Nu lasati produsul alimentat nesupravegheat in timpul testelor.
Produsul nu este jucarie si nu este destinat copiilor.
Pentru modulele electronice, se recomanda utilizarea in carcase, panouri sau montaje protejate, dupa caz.
Identificare produs:
Denumirea produsului, codul/SKU-ul si caracteristicile tehnice sunt mentionate in pagina produsului si/sau pe eticheta ambalajului.
Producator / Importator / Distribuitor:
Sigmanortec S.R.L.
Calea Bucuresti nr. 9, Targu Jiu, Gorj, Romania
E-mail: [email protected]
Website: www.sigmanortec.ro
Persoana responsabila in UE:
Sigmanortec S.R.L.
Calea Bucuresti nr. 9, Targu Jiu, Gorj, Romania
E-mail: [email protected]
Documentatie si siguranta:
Pentru informatii suplimentare, fise tehnice, declaratii de conformitate sau instructiuni, ne puteti contacta la [email protected].
Reviews (2) - Review moderation
Foarte bun, livreare rapida , calitate buna
http://www.ti.com/lit/ds/symlink/ina219.pdf
