switch with a resistance

Thread Starter

nxp

Joined Jun 6, 2010
7
Hi!

I want to active or desactivate a relay when i'm reading a variable resistance. When i read 50 ohm, i need to active a relay. When i read 160 ohm i need to activate another relay.

I tried iwth a picaxe chip with readadc10. But i think it's a too low value...

Any idea?

Thank you
david
 

hgmjr

Joined Jan 28, 2005
9,029
Are you trying to measure these resistances while they are still in the circuit or are they uninstalled in a board?

hgmjr
 

Thread Starter

nxp

Joined Jun 6, 2010
7
Are you trying to measure these resistances while they are still in the circuit or are they uninstalled in a board?

hgmjr
The resistance is changed with hardware switch (like a button). I can take two wires at the end and read it with my ohmmeter.
 
Top