Quote:
Originally Posted by kaligula
I have another problem too. When I measure voltage of emitter of tr5 or at the end of sensor stage with multimeter there is no problem. When I conect the voltmeter which I installed in the device the voltage drops. At tr5 emitter connected it goes 4,5v, at end of sensor stage is around 5v. When the circuit is affected at tr5 connected voltage goes up more then 5,6 v. And two leds are on. At strong signals and three leds going on. When I conect it at end of sensor stage the standby voltage is bigger, but only one led goes on, never two or three
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It is normal that the sensor stage output changes when it is in the box and even approaching the hand, so I suggest a handle about 25 - 30 cm long.