- #1
aruna1
- 111
- 0
guys I'm making this color sensor.i have used 2 RED LEDs as both sensor and emitter. I have used TL084 op amp in infinite gain mode because Sensor LED generates very small voltage.
my problem is op amp is too sensitive so it reacts when i tough circuit or negative wire (some times even my fingers reach the circuit [without even touching])
this made circuit kind a unstable.other than that circuit works fine.
any solution for this?
here is the schematic
thanks
my problem is op amp is too sensitive so it reacts when i tough circuit or negative wire (some times even my fingers reach the circuit [without even touching])
this made circuit kind a unstable.other than that circuit works fine.
any solution for this?
here is the schematic
thanks