I have a pressure sensor I want to read remotely, and also be able to control the solenoids to raise or lower the pressure from where the readout is. My current setup is the pressure sensor is connected to an Uno with an I2C LCD readout and a manual rocker switch to control the solenoids. I have two HM-10's, I want to incorporate into the system so I can remotely read the pressure, and as well change the pressure. My plan is to move the LCD from the Uno, and install an HM-10. Then (remotely) on a Nano install the other HM-10 and the LCD screen, and I have a keypad I want to use to change the pressure. My thinking is to use the key pad to give the Uno a pressure to set to, then use a relay board controlled by the Uno to raise or lower the pressure. The solenoids are 12V and draw .6 amps.
Is this possible with the hardware I have?
Any tips or suggestions would be great.