Ina219 max current. I am using INA219 and Arduino Uno.
Ina219 max current 01 ohms gives you a maximum potential current of 32A, which is more than you need. Dec 26, 2023 · Specifications of the INA219 Current Sensor: Supply voltage: The operating voltage of the INA219 current sensor ranges from 3. INA219 & Arduino Based Wattmeter: Small digital voltage and current detection sensor with ultimate 12 bit precision and features. The INA219 operates from –40°C to 125°C. " So if you want more current range, use a smaller resistor. This module is used to measure both current and voltage at the same time. Jan 14, 2025 · The current sensor INA219 can measure up to ±3. Some timings in micros for INA. What is the maximum current value that INA219 can detect? Can 200A be Jan 1, 2015 · Hi, Is it possible to change the shunt resistor of the INA219 breakout board in order to sense a higher current value? I wish to sense a maximum of 10A instead of 3. 2 Amps. 6 Amps. getMode() on an Arduino UNO The INA219 sensor allows you to measure voltage, current and power with high precision. I also bought the INA219 but I read that as far as precision is concerned, the IN222 is better, so I bought that too. You can (almost) think of this as a triple INA219 – the bidirectional…Read More→ The INA219 is available in two grades: A and B. The chip uses a single 3 to 5. Running the numbers for that and an expected current of 6A would give you 1mA resolution with ina219_calValue = 40. It is commonly used in applications such as battery chargers, power supplies, and portable instruments to monitor the current draw and power consumption of the system. Oct 26, 2012 · The INA219B breakout board will solve all your power-monitoring problems. The INA219 is a voltage, current and power measurement device. But INA219 does not take full 100 mV, it usually works with small input like ±40 mV maximum in default gain setting. Instead of struggling with two multimeters, you can just use the handy INA219B chip on this breakout to both measure both the high side voltage and DC current draw over I2C with 1% precision. I've successfully read the bus voltage, indicating that the I2C driver is working correctly. An additional multiplying register calculates power in watts. A programmable calibration value, combined with an internal multiplier, enables direct readouts in amperes. File Size: 883Kbytes. 2A regardless of the voltage or if I should just look at the Wh. Manufactured by Virgo Energy, the INA219 provides precise current and voltage monitoring with programmable calibration values. However, it has an extended range, capable of measuring voltages up to 36V and current up to 20A. It only measures the voltage drop between the Vin+ and Vin- terminals. Sep 27, 2023 · Part Number: INA219 Hello experts, I'm attempting to read the current from an INA219 device. 1V or 100 mV. Now available from PMD Way is the compact INA219 High Side DC Current Sensor Breakout - 26V ±3. 2A at 100uA resolution, measuring the voltage and power consumption at the same time, using an I2C chip. This multifunction small energy meter senses the current and voltage by using the INA219 current sensor. This hardware overview of the INA219 IC and Modules covers specs, board layout, pinout, and operation. Page: 33 Pages. The maximum continuous current that can be read is 2A, while the maximum Aug 22, 2019 · Hi guys, I have a question. Instead of struggling with two multimeters, you can use this breakout to measure both the high side voltage and DC current draw over I2C with 1% precision. 5V supply, drawing a maximum of 1mA of supply current. The current I'm working with is about 400-500 mA The INA219 is available in two grades: A and B. This versatile sensor is designed for high-voltage applications, capable of measuring up to 26 volts and 3. Overview Link to heading “The INA219 is a high-side current shunt and power monitor with an I2C interface Jan 2, 2021 · With the INA219 module, you can measure currents and power conveniently and reliably. Apr 12, 2021 · INA219 Chip Data The INA219 chip at the core of the dc current sensor module is a current shunt and power monitor with an I 2 C or SMBUS compatible interface. com/gp/product/B093ZNL53C Using the Arduino The INA219 is a digital current sense amplifier with an I2C- and SMBus-compatible interface. 2. 5A through the INA219 breakout. Zodianz What is the maximum current rating of the INA219/ INA3221 current sensor module? The modules measure current using a tiny 0. 4 Amps of measurement range. Go ahead and drop it to 0. Note that I want to measure the voltage drop on the 12v side, so that I can measure the battery charge level as well. It can measure the current, voltage, and power of a circuit. amazon. 4 Aug 17, 2024 · In this article we will study about the INA219 Current Sensor, with this module we can measure current, voltage, and power of a circuit. It can measure voltage, current, and power consumption in an external circuit. Its compact design and high accuracy make it ideal for battery management systems, power Sep 11, 2021 · Hi , In my project I want to know the maximum and minimum current drawn by a gadget. The INA219 IC, modules (including pinout), Arduino Hookup, Libraries, and code will be covered. Compute the maximum current and shunt voltage values before overflow # # Max_Current = Current_LSB * 32767 # Max_Current = 3. Est. INA228 Module with integrated shunt from Adafruit Supported devices The ina2xx sensor platform allows you to use family of Texas Instruments current and power sensors with ESPHome. Learn how to measure voltage, current and the power consumption with the INA219 in combination with your Arduino, ESP8266 or ESP32 microcontroller What is an INA219? The INA219 is a sensor manufactured by Texas Instruments that allows for measurements of voltage, current, and power in electronic circuits. I want to be able to measure the power usage of the raspberry, so I fitted a INA219 sensor in the circuit. The INA219 can measure voltages from 0V to 26V, with the option to choose between two scales of 16V and 32V, with a maximum precision of ±0. Since the amplifier maximum input difference is ±320mV this means it can measure up to ±3. It has an integrated 12C or SMBus-compatible interface to communicate data to the microcontrollers. Can i use the setCalibration_16V_400mA so i can have the maximum resolution? May 3, 2019 · hello guys, i'm using the INA219 for some power analyses on some devices of mine and i would like to make a new project with higher ranges because the current measurement is "limited" to 3. Here is the current circuit: Oct 23, 2020 · Im using the adafruit ina219 library and I am unsure on how to increase the sampling rate from the datasheet i know that the sensor supports 84us for the fastest rate. Current Sensor INA219 Operating voltage is 3. It is easy to integrate into Arduino and other microcontroller projects. TI-Produkt INA219 ist ein (e) Digitaler Leistungsmonitor mit 26 V, 12 Bit und I2C Ausgängen. The chip has an analog-to-digital converter with a high resolution of 12-bit and 16 programmable Nov 3, 2023 · Hello, I have the INA219 current sensor with R100 Shunt resistor. 5A at 12V (6W) or 6A at 3. It operates on an I2C-compatible or SMBus-compatible interface which facilitates communication with microcontrollers. This is currently working. The process for choosing those values is explained in the datasheet, and also in our Arduino library. Rshunt = 0. It has an I2C interface and supports voltages up to 26V and currents ±3. Description: ZerO-Drift, Bi-Directional CURRENT/POWER MONITOR with I2TM Interface. A precision current-sensing amplifier, an analog-to-digital converter (ADC), and a data acquisition system are integrated into the INA219. Most current-measuring devices such as our current panel meter are only good for low side measuring. 5. 95 : Adafruit Industries, Unique & fun DIY electronics and kits Sorry forgot about that. INA219BIDCNT Texas Instruments Current Sense Amplifiers 0-Drift Bi-dir Curre nt/Pwr Mon A 595-INA219BIDCNR datasheet, inventory, & pricing. Manufacturer: Texas Nov 23, 2010 · Texas Instruments INA219 high-side current shunt and power monitor with an I²C interface monitors both shunt drop and supply voltage with programmable conversion times and filtering. Jan 11, 2025 · The INA219 is a digital current sense amplifier with an I2C- and SMBus-compatible interface. The INA219 monitors both shunt drop and supply voltage, with programmable conversion times and filtering. However, when I read the current, I receive values that are approximately 2. 2A Max [STEMMA QT] : ID 904 : $9. Jun 22, 2023 · INA219 Current Sensor Module Texas Instruments launched the INA219 shunt Current Sensor module. 2 amps. reading time: 19 minutes. 2A Max is available to buy in increments of 1 Jul 13, 2016 · About this item INA219 I2C Bi-directional DC Current Power Supply Sensor Footprint: SOT23 Working Voltage 3~5V Size: 25. According to this voltage and current, ESP8266 calculates power, energy, and capacity. . Includes a shunt resistor and a 12-bit ADC for reliable results. The INA219 evaluation module (EVM) is an easy-to-use platform to evaluate the main features and performance of the INA219. 32v while setting RSHUNT to 0. Please enlighten me. Note: higher speeds and longer wires need smaller pull up resistors. Everything will continue to work - it will just give wrong measurements *I know that I can sandwich another R100 to increase the Max Amper reading but that's not The INA219 is a digital current sense amplifier with an I2C- and SMBus-compatible interface. For example, a 0. Please Note: As of Sept 2022, due to the severe chip shortage, Adafruit have had to update this design to use either the INA219A or Jul 26, 2023 · Part Number: INA219 Hi, I am using INA219 to measure current of a 12V rail. Simply, connect wire serial through this device and it will give all the information provided via I2C communication. Nov 11, 2024 · Overview In this tutorial, we will learn how to interface the INA226 DC Current Sensor Module with an Arduino. I was wondering what will happen if I run through it let's say 6A for a long period of time (12 hours), is it: 1. INA219 High Side DC Current Sensor Breakout - 26V ±3. So my objective is to change the INA219's shunt resistor to get a measurement of current to 6. Thank you, The INA219 is a high-side current shunt and power monitor with an I2C-compatible interface. The device monitors both shunt voltage drop and bus supply voltage, with programmable conversion times and filtering. We can easily use INA219 Current Sensor with Arduino to measure current, and power, and it can also sense shunt voltage. The EVM supports current measurements up to 10A and comes with graphical user interface (GUI) support to read and write to device registers. 2A current (adjustable by the shunt resistor used) and 0V to 26V voltage. The EVM comes with GUI support to read and write to device registers. A precision amplifier measures the voltage across the 0. 2A range is 0. with free delivery. 2A 26V. 3-5V, Maximum Voltage is 26 (DC), Maximum Current is 32 A, Sensitivity is 0. Instead of struggling with two multimeters, you can just use the handy INA219 chip on this breakout to both measure both the high side voltage and DC current draw over I2C with ±1% Jun 28, 2023 · Part Number: INA219 Hi team, Asus is using the INA219 in their notebook applications. 1mA. I have a 12V power supply (similar looking to a power brick for a laptop) that has a max current rating of 10A. Regards, Anurag Jun 19, 2019 · Only 10% of the total current flows through the onboard 0. Feb 27, 2025 · In this tutorial, I will show you how to make an IoT Energy Meter using INA219 Sensor ESP8266 & Blynk. 2A Max [STEMMA QT] : ID 904 - This breakout board will solve all your power-monitoring problems. This breakout board will solve all your power-monitoring problems. May 20, 2023 · Arduino: Interfacing INA219 Current Sensor Module with ESP32 The INA219 module is an I2C supported interface based zero drift and bi-directional current/power monitoring module. The INA219 is a digital device that allows the measurement of current, voltage, and therefore power. Please support me with valuable feedback. 2V (max) Lipo battery (when it's fully charged), and the current range from 1mA to 500mA (maybe 600mA). 05 ohms to measure 6. The INA219 chip at the core of the dc current sensor module is a current shunt and power monitor with an I2C or SMBUS (System Management Bus predecessor or I2C and it inter-operates with I2C) compatible interface. It calculates the power by measuring voltage and current and simply multiplying them (power = Voltage × Current). 27 Overview The INA219B breakout board and the INA219 FeatherWing will solve all your power-monitoring problems. Instead of struggling with two multimeters, you can just use the handy INA219 chip on this breakout to both measure both the high side voltage and DC current draw over I2C with ±1% Sep 10, 2008 · INA219EVM — INA219 evaluation module The INA219 evaluation module (EVM) is an easy-to-use platform to evaluate the main features and performance of the INA219. That trick of putting resistors in parallel is a cost effective way to increase accuracy and power rating. INA219: How your Arduino can measure 3. This can be very useful in many applications such as measuring battery levels, estimating battery life, tracking solar power generation, monitoring the amount and cost of electricity consumption, etc. Apr 21, 2022 · My question is simple regarding the capacity of the INA219. It can sense shunt voltage, current, and power at the same time and submit the data via I2C protocol. The INA219, manufactured by Adafruit (Part ID: INA219), is a high-side current shunt monitor that measures both current and voltage, providing a digital output via the I2C interface. It says the maximum is 3. The INA219 chip can monitor both the shunt voltage drop and the bus supply voltage, with programmable conversion Arduino INA219 DC Current Sensor The INA219 DC current sensor is a common choice for Arduino projects needing (DC current, bus voltage, and power) measurement capability. The INA219 is a high-side current shunt and power monitor with an I2C-compatible interface. Nov 12, 2020 · INA219 High Side DC Current Sensor Breakout - 26V ±3. An additional Jan 28, 2022 · Adafruit Industries License: See Original Project Adafruit Feather STEMMA Courtesy of Adafruit Guide by Lady Ada Overview The INA219B breakout board and the INA219 FeatherWing will solve all your power-monitoring problems. 2767A before overflow # # If Max_Current > Max_Possible_I then # Max_Current_Before_Overflow = MaxPossible_I # Else # Max_Current_Before_Overflow = Max_Current # End If # # Max_ShuntVoltage = Max_Current_Before_Overflow Adafruit Industries 904 INA219 High Side DC Current Sensor Breakout - 26V +/-3. It is a Zero-Drift, Bidirectional, Power Monitor module that monitors shunt voltage, Bus voltage, current, and power. 8 mA, Operating temperature is -40 ~ 150 ° C. 96. Thus you can make DC Energy Meter project using this sensor or a 12V Battery Oct 26, 2012 · The INA219B breakout board will solve all your power-monitoring problems. Jul 8, 2025 · So if 1 amp current flows and resistor is 0. An example of measuring current, voltage, and power on a simple resistor circuit is provided to demonstrate how to use the INA219. Any help? Jan 26, 2017 · The INA219 has a built-in math engine that calculates current based on values you configure it with. 2A Max. Programmable registers allow flexible configuration for measurement resolution as well as continuous-versus-triggered operation. This article tries to fill in some of the gaps that weren’t obvious to me when I first read the datasheet. 8mA. Aug 12, 2014 · Holding VHSUNT_MAX at 0. Jul 6, 2014 · Motivation Link to heading The INA219 datasheet provides an example calibration workflow, but doesn’t really explain how some of the equations and constant values are derived. 5-V supply, drawing a maximum of 1 mA of supply current. With the internal gain set at the minimum of div8, the max current is ±400mA and the resolution is 0. The INA219 is available in two grades: A and B. Parameter-, Bestell- und Qualitätsinformationen finden The INA219 is a digital current sense amplifier with an I2C- and SMBus-compatible interface. The INA226, like its predecessor the INA219, is a device that can measure current, voltage, and power. Appropriate interface (I²C Bus or SPI Bus) is requred to be set up in your configuration for this sensor to work. 08. Jul 8, 2023 · INA219 DC Current Sensor Module The INA219 is a high-side current shunt and power monitor IC developed by Texas Instruments. The I2C interface The INA219 IC is a high-side current and voltage monitor chip using an external shunt resistor. 1 Ohm resistor, but the INA219 has no way of knowing that. Then comes Differential Amplifier Now inside the chip, there is one block called Differential Amplifier. Made your Wattmeter with flexibility. 2A Max - STEMMA QT by Adafruit Industries. May 22, 2022 · The INA219 Current Sensor is an I2C-supported interface-based zero drift and bi-directional current/power monitoring module. 05 ohm resistor would give you up to ±6. The INA219 current sensor provides an I 2 C digital output that makes it so easy to measure the DC currents with multiple INA219 sensors using only 2 wires (up to 16 different addresses). Do you have any suggestion for the resistor value? BTW, what is the maximum current that the chip can handle, i looked on the datasheet and there was minimum info on the max current that it can handle : (. Sep 27, 2016 · I'm using the Adafruit INA219 module to measure voltage and current to a linear actuator, and I have a question about how to best calibrate the module to my situation. A few important maxima, see datasheet, chapter 7, esp 7. 3mm 1%, the maximum offset is 100 uV. The actuator is rated for 12V @ 5A maximum, delivering a force of INA219 is a shunt Current Sensor module introduced by the Texas instruments. 3V (19W)? I don't know if I shouldn't go over 3. Nov 23, 2019 · Hi Im choosing some current sensors to see which is most suitable, INAxxx series seem be good But when reading their datasheet, some say max current sensed, some not. As if that weren Jan 9, 2020 · 2) My circuit is powered with a 4. 5 Datasheet states it supports 1 KHz . Jun 4, 2025 · Part Number: INA219 Tool/software: Hello, Is there a maximum current rating for the INA219 chip? I'd like to use it in my design, and I'm pretty sure it'll be more than fine for the 130mA I'd like to monitor, but I just want to make sure. 5 Amps max. 1ohm by a new one of 0. Resistor TLRP3A30WR050FTE could be one option. It features 16 programmable addresses. 5% (Maximum) Filtering Options Calibration Registers Driver The driver as the following functionality: Fast integer only calculation Support for I²C Calibration and Sense Resistor Options INA219 DC Current Sensor The ina219 sensor platform allows you to use your INA219 High Side DC Current Sensor (datasheet, Adafruit) sensors with ESPHome. 5* 22. Part #: INA219. Example INA219's one, how we calculate the max current it measures base on details shown in the document ? Thanks much 🙂 🙂 Jan 8, 2025 · For example, if you put the INA219 in parallel with nine external 100mohm resistors, each resistor (including the one on the INA219 breakout) will carry 10% of the total current. The I²C Bus is required to be set up in your configuration for this sensor to work. Feb 24, 2024 · ' MaximumPower = 0. 2A Max - STEMMA QT May 2, 2023 · Part Number: INA219 I have a pressure sensor that signals via current and draws between 4 and 20 mA: https://www. Overview ina219 provides support for a popular power sensor from Texas Instruments: Features Senses Bus Voltages from 0 to 26 V Reports Current, Voltage, and Power 16 Programmable Addresses High Accuracy: 0. Mar 23, 2021 · I'm building an Arduino circuit to detect/limit the maximum charging current to a camera flash. Part Number: INA226 Other Parts Discussed in Thread: INA219 Good morning, I have some questions about the INA226 sensor. That means that unless you want to Nov 20, 2017 · Voltage and current monitoring The INA3221 or rather one of the boards based around it, allows for a single power input and up to 3 power outputs –each monitoring voltage and current and all done via I2c. 2 times higher than expected (I verified this by comparing with a Fluke measurement). 4 amps ) Please let me know what correciton i should to make to read correct values. Feb 10, 2017 · Raspberry Pi INA219 Tutorial February 10, 2017 This tutorial demonstrates how to measure DC voltage, current and wattage using a Raspberry Pi and an INA219. Current sensing: This device can measure both AC and DC currents by using a shunt resistor in series on the ground wire or bus. The device has a 12-bit analog-to-digital converter and 16 programmable addresses The INA219 is a digital current sense amplifier with an I2C- and SMBus-compatible interface. INA219 - Bidirectional Current/ Power Monitor The INA219 is a current shunt and power monitor with an I2C- or SMBUS-compatible interface. 2A. The Bus, Shunt and Load voltage, current and power will be displayed on the ST7789. 1 ohm resistor and I'm wanting to measure current over 10A but theres no mention of maximum current in the data sheet. A programmable calibration value, combined with an internal multiplier, enables direct readouts of current in amperes. Similarly, from energy consumption, the energy cost is calculated based on the energy price per kWh Download schematic symbols, PCB footprints, 3D Models, pinout & datasheet for the INA219 High Side DC Current Sensor Breakout - 26V ±3. With the internal 12 bit ADC, the resolution at ±3. Dec 14, 2024 · Hello josephchrzempiec Take a view to get some ideas: Wolles Elektronikkiste – 2 Jan 21 INA219 Current and Power Sensor • Wolles Elektronikkiste With the INA219 module, you can measure currents and power conveniently and reliably. 1 ohm then voltage drop is 0. What is Adafruit Industries, Unique & fun DIY electronics and kits INA219 High Side DC Current Sensor Breakout - 26V ±3. Jan 3, 2021 · The INA226 is a current and power sensor which, in contrast to the INA219, is equipped with an alarm pin for limit violations. Explode and stop working 3. Adafruit Industries, Unique & fun DIY electronics and kits INA219 High Side DC Current Sensor Breakout - 26V ±3. A 15A load would only send 1. Jan 22, 2025 · 30 Overview The INA219B breakout board and the INA219 FeatherWing will solve all your power-monitoring problems. 56 MHz. This part is like a tiny smart op-amp. 3V to 5. The INA219 is a digital current sense amplifier with an I2C- and SMBus-compatible interface. 4 * 16V ' MaximumPower = 6. The B grade version has higher accuracy and higher precision specifications. The use of this module is for a design of a bench power supply with different fixed output voltages coming from 3 DC-DC converter stabilizers (Vout1 = 12V Oct 3, 2022 · Since the amplifier maximum input difference is ±320mV this means it can measure up to ±3. I think removing the R100 shunt resistor of 0. That is, the maximum is 83W? What happens if I put 0. Using this board you can use the handy INA219B chip to both measure both the high side voltage and DC current draw over I2C with 1% precision. 1 ohm, 1% sense resistor. 4W ' Set multipliers to convert raw current/power values INA219_currentDivider_mA = 20 'Current LSB = 50uA per bit (1000/50 = 20) INA219_powerDivider_mW = 1 'Power LSB = 1mW per bit ' Set Calibration register to 'Cal' calculated above WriteRegister(INA219_REGISTER_CALIBRATION, INA219_calValue) This tutorial shows how to use the INA219 sensor module to measure current, voltage, and power with the Arduino Uno R3. It is a bidirectional, zero-drift power monitor module that measures shunt voltage, bus voltage, current, and power. Download. E-6 Configuration reg = 0x0447 Current register is reading = 0xFBDF ( looks like it is reading max value eventhough current drawn is around 0. 003 ohms Current LSB = 381. using 41 would be pretty close. It is commonly used in applications such as View INA219 by Texas Instruments datasheet for technical specifications, dimensions and more at DigiKey. The INA219 chip can monitor both the shunt voltage drop Apr 30, 2018 · Hi all, So, I am aiming to have my raspberry pi zero run off a 12v car battery using an UBEC. Oct 26, 2012 · The INA219B breakout board and the INA219 FeatherWing will solve all your power-monitoring problems. Burn a hole in the PCB 2. Aug 4, 2025 · INA219 Current Sensor Module : PinOut, Features, Specifications, Interfacing, Differences & Its Applications August 4, 2025 By WatElectronics A current sensor module is an electronic device that detects and measures the flowing electric current throughout a conductor and changes it into a current, voltage, or digital signal. 5V, with an operating temperature range of -40°C to +125°C. The device uses a single 3- to 5. I am using INA219 and Arduino Uno. It provides digital current, voltage, and power readings necessary for accurate decision-making in precisely-controlled systems. I decided to use an INA219 breakaout board, which comes with a R100 resistor as a shunt so it should Jun 15, 2020 · The INA219 based Current sensor module CJMCU-219 is an I2C interface based zero drift and bi-directional current/power monitoring module. INA234_236EVM — INA232, INA234 and INA236 evaluation module for current/voltage/power monitors This evaluation module (EVM) is an easy-to-use platform to evaluate the main features and performance of the INA232, INA234 or INA236. It features a built-in 12C or SMBus interface for communicating data to the microcontrollers. I explain how this works and introduce my library. The INA219 senses across shunts on buses that can vary from 0 to 26 V. The INA219 is a high-side current shunt and power monitor with an I2C interface. wcvmapuyyejwxmeoaflrkoemjybxpzdicutgkbrszxfshvzrwkftdpkqfydzwiwjimwvnsjgh