Hello ,
I am doing one project based on Arduino. I am searching for a pressure sensor for monitoring the pressure of 1 to 10 bar. For this i need 4 to 20mA output signal. But the confusion , Is it mandatory to use the power supply of 5 VDC for Arduino application ? I searched but could not find any pressure sensor with these specification. If anyone guide me , it will be a great help. Thanking you.
Just pick a breakout board for arduino - many of those on ebay such as I use GY-63 with MS5611 chip or BME280 based breakout boards. THey all have 3.3v regulator and level shifters on board so interface with 5v Arduino is not a problem and I2C interface is the easiest to work with.
I just posted in this forum link to my sketch to run them both for a comparison and links to both drivers I am using.
Vladimir
I doubt that a barometric sensor can measure 1-10 bar.
4-20mA is an industrial norm. Not needed for short distances.
What do you want to measure. Air, water, fuel.
Leo..
Why do you need 4-20 mA output? If it is for Arduino, voltage output is more convenient.
This is a 10 bar (1.2 MPa) sensor with 0.5 - 4.5 V output.