Resistive sensor interfacing with controller
Resistive sensor interfacing with controller
(OP)
Hi!
I need help with interfacing resistive sensor to microcontroller. Sensor resistance changing between 100kohm to 2Megaohm. I must use only one pin on controller. That mean I need some kind of relay output circuit. But which kind of circuit give me good results.
Ank
I need help with interfacing resistive sensor to microcontroller. Sensor resistance changing between 100kohm to 2Megaohm. I must use only one pin on controller. That mean I need some kind of relay output circuit. But which kind of circuit give me good results.
Ank





RE: Resistive sensor interfacing with controller
You need an interface circuit ( Voltage ref & op.amp )
and ADC. You may need additional pins to interface
to controller but these may be shared among more functions
If it is on/off ( e.g. one value = on, other = off)
Comparator with R-network.
More ?
<nbucska@pcperipherals.com>
RE: Resistive sensor interfacing with controller
Hi!
Is there are some sample schematics in the internet?
ank
RE: Resistive sensor interfacing with controller
RE: Resistive sensor interfacing with controller
<nbucska@pcperipherals.com>
RE: Resistive sensor interfacing with controller
RE: Resistive sensor interfacing with controller