I am an absolute beginner and planning to purchase an RPI hat which is a 4 channel ADC. (Product link> https://wiki.seeedstudio.com/4-Channel_ ... i-ADS1115/ ). I have three sensors (pressure) each with a two wire output terminals sending 4-20mA. Three sensors neither identical nor from same company. I have two questions in this regard:
1. Is it fine, if I connect all the -ve/black terminals to ground point on ADC and then each positive terminal to different analog pins? In case if not, what's the best connection strategy to be followed?
2. Since it's a HAT, I assume it will be over all the GPIO pins. I also want to connect two buttons for start and stop. If these GPIO pins are inaccessible, how can I connect these push buttons? Is there any way to bypass/access?
Thanks in advance!
1. Is it fine, if I connect all the -ve/black terminals to ground point on ADC and then each positive terminal to different analog pins? In case if not, what's the best connection strategy to be followed?
2. Since it's a HAT, I assume it will be over all the GPIO pins. I also want to connect two buttons for start and stop. If these GPIO pins are inaccessible, how can I connect these push buttons? Is there any way to bypass/access?
Thanks in advance!
Statistics: Posted by racoon396 — Mon Sep 16, 2024 12:36 pm