Hi,
I need to measure pressures using DIP pressure sensors from Honeywell (+/-25 mbar pressure range) pressure range).
Can anyone provide me an arduino code for that?
How can i connect 15 sensors to arduino boards and measure simultaneously?
Regards,
Usman
This sensor sends analog output signals.
Which exact part number? There are a lot. Some are digital.
Hier is the part number: SSCDRRN025MDAA3
its a DIP type 3.3 V supply and sends analoge signals, Pressure range is +/- 25mbar
Connecting one sensor to one analog input should be simple. Try that first. I think the first example in the Arduino analog examples will work for you.
15 is a bit more work. Only the Arduino Mega (16 analog inputs) and Teensy 3.5/3.6 (23 analog inputs) have enough discrete inputs to just hook them all up.
15 of those sensors.
That would be close to US 1000
Better use a 3.3volt processor for that (not a Mega), to avoid problems.
Leo..
Can somebody share a code for arduino mega please?
mechusmanbutt:
Can somebody share a code for arduino mega please?
Did you read/understand post#5.
A Mega is a 5volt Arduino.
You can't use a ratiometric 3.3volt sensor without running into hardware issues.
Use a 3.3volt processor.
Leo..
Hi Wawa, The attached pic shows Vcc of 3.3 volts on a mega. Did u mean this? or i couldn't get your point
The processor on most older boards, like the Uno/Mega/Nano/etc, run on 5volt.
The 3.3volt pin on those boards is just an extra/secondary power supply.
If you want to use 3.3volt ratiometric sensors on those boards, then...
It could be safer to use a board that natively runs on 3.3volt, like a Due/Teensy/MKR series.
Leo..
