ICIRCUIT CODE HOW TO

LetвЂ™s take a look at the internal register of INA219, as you can see there are six registers, two configurable registers, and fou rread-only registers with the configuration register we can set the mode of operation voltage measurement range ADC resolution and so on. Let me show you an example in case we have a simple load connected to vcc and we want to measure the voltage and the amount of current flowing through this load, then we can connect the vin+ and Vin- pins of our module.ДЄs we see here and then the current flows through the shunt resistor which results in the voltage drop across the shunt resistor. We can calculate the amount of current flowing to the load. It is used to measure the voltage drop or the shunt voltage and with the knowledge of the shunt resistor value. Since i2c devices are only capable of driving the line to a low value and finally the resistor which is connected with the VinвЂ“ and Vin+ is called shunt resistor. The two pull-up resistors on the i2c line which are connected at SDA and SCL are necessary for proper communication with the host. You can tie these pins to SDA or SCL extending your address options to anumber of 16.This is the list of the i2c addresses we can use for each connections made. LetвЂ™s discuss each component one by one, first there are two pull-down resistors connected to the address pins A0 and A1 which are 10 kilo ohm resistors and by default this device will have an address of 40 and hexadecimal value you can change this address by connecting these two pads as shown in the above figure. It is composed of the INA219 IC with some resistors and one capacitor for noise decoupling but i omitted this for simplicity. This is the schematic of the module as you can see: The resolution of the measurement is also programmable and has a range of 9 to 12 bits. For example if we use a shunt resistor value of 0.1 ohm as in our module, the current measurement range are asshown here: The current measurement range can be determined by these settings and the value of the resistor we use for the shunt resistor. The measurement range of these voltages is configurable by programming the registers through the i2c channel. V_shunt, this is the voltage across the shunt resistor.V_shunt and V_bus are the two measurements acquired directly by this module. This current sensor module can also be easily interfaced with 3.3v compatible controller boards like ESP32 and Nodemcu ESP8266, etc. Due to this wide voltage input range the INA219 Current Sensor module can be powered up using the ArduinoвЂ™s 5 volts. The supply voltage range is 3 to 5.5 volts so we can connect the supply to this module directly from our 5 volt or 3.3 volt systems. Specifications of the INA219 Current Sensor: Supply voltage: The INA219 Current Sensor is most commonly used:

The R100 is the Current Sense Resistor and the small chip in the middle is the INA219 chip. On the board you can see A0 and A1 these are used for the I2C Address selection. SCL and SDA for the i2c communication and Vin+ and Vin- pins for measuring the voltage. In these pins the vcc and gnd pins are used for the power supply. The INA219 Current Sensor consists of six pins which are: I would appreciate your support in this way! INA219 Current Sensor Pinout:

I may make a commission if you buy the components through these links. Overload Monitoring with ACS712 Current Sensor Amazon Links: Without any further delay, letвЂ™s get started!!! There are so many other things which we will discuss in a minute. The INA219 Current Sensor can measure DC voltage up to +26V. This Sensor module is provided with 0.1 ohms, a 1% shunt resistor to fulfill the requirement of current measurements.

The INA219 Current Sensor can be easily used with Arduino to measure current, power, and it can also sense shunt voltage. The INA219 Current Sensor is an I2C supported interface based zero drift and bi-directional current/power monitoring module. In this article we will study about the INA219 Current Sensor, with this module we can measure current, voltage, and power of a circuit. Demonstration of the INA219 with the Arduino:.Interfacing the INA219 with the Arduino:.Specifications of the INA219 Current Sensor:.Read вЂњNOTESвЂќ below for accurate readings. This is a basic sketch just to show functionality. I make use of Arduino IDE to load sketch below onto ESP32.I make use of Home Assistant вЂњMosquito brokerвЂќ add-on.ESP32 (in my case, I make use of a Wemos ESP-32 module equipped with a 18650 battery holder).

ICIRCUIT CODE HOW TO

How to install the necessary libraries ( #include).

How to install, setup and use Arduino IDE.

Icircuit code