Hi all,
I posted a similar question a little while ago here
I have since acquired all materials to make this circuit shown below. Full walk through http://www.66pacific.com/ph/simplest-ph.aspx
My circuit is exactly the same and I do not get a reading.
When I connected a single 9v battery instead of 2 i was able to get a constant 1.4 volts across the pins. I am using pins 1 2 3 4 5. I measure across pins 1 and 4.
Ive been troubleshooting all day today and i cant seem to figure out what i am doing wrong. I started a new thread because the old one was answered and it seems to have gone off on a tangent.
My end goal with this circuit is to have it light up an LED when Acid is detected.
I posted a similar question a little while ago here
I have since acquired all materials to make this circuit shown below. Full walk through http://www.66pacific.com/ph/simplest-ph.aspx
My circuit is exactly the same and I do not get a reading.
When I connected a single 9v battery instead of 2 i was able to get a constant 1.4 volts across the pins. I am using pins 1 2 3 4 5. I measure across pins 1 and 4.
Ive been troubleshooting all day today and i cant seem to figure out what i am doing wrong. I started a new thread because the old one was answered and it seems to have gone off on a tangent.
My end goal with this circuit is to have it light up an LED when Acid is detected.