can be changed via the following functions ads.setGain(GAIN_TWO) The ADC gain (PGA), Device operating mode, Data rate
Serial.begin(9600) // The address can be changed making the option of connecting multiple devicesĪds.getAddr_ADS1115(ADS1115_DEFAULT_ADDRESS)
Use it any way you want, profit or free, provided it fits in the licenses of its associated works.ĪDS1115 This code is designed to work with the ADS1115_I2CADC I2C Mini Module available from. This 4-20mA current loop board comes with 1,2,3,4 channels and 16 bit resolution * This code can be used to read 4-20mA signal using ncd 4-20mA current loop board and arduino. 4-20mA receiver devices could be really expensive but it can be done at a much lower cost using ncd.io 4-20mA current loop receiver boards. This 4-20mA current loop method is really popular in automation and sensing industry due to high reliability, easy installation, fewer components, and wires can be long. This conversion will be a linear conversion, so you will be able to calculate the real pressure value at any given point.
so when you connect the 4-20mA current receiver circuit in the series and read the sensor it will read 4ma when the pressure is 0 psi and it will read 20mA when the pressure is 50 psi. so, for example, let’s say you have a pressure sensor which works at 4-20mA current loop principle and it is capable of measuring 0-50psi. for example, it could be a temperature sensor which gives the temperature value in the form of 4-20mA4-20mA current loop receiver - this is the device which will be used for readings 4-20mA current loop signal and will convert into digital or real-world valuesHow two wire or 4-20mA current loop worksThe 4-20mA current loop output devices give data output in the form of current consumption, to measure the change in the current we will need to put the correct receiver circuit in the series. A typical 4-20mA current loop setup contains 3 things power supply - Most of the devices work at 24V DC but there are other voltage standards available as well4-20mA current loop sensor - this is the device which works as 4-20mA standard. This 4-20mA current loop technology is used in temperature sensors, pressure sensors, current sensors, distance sensors, magnetic field sensors and much more. Despite being one of the oldest industry standards a lot of users have difficulty understanding the working of this technology.
This 4-20mA current loop interface is also known as 2 wire interface technology. Follow this simple guide and we will show you a few tips to make it fast and easy.Ĥ-20mA current loop is most common and widely used communication method in an industrial environment. Reading 4-20mA current loop sensors using Arduino is much easier than you might think.