Hi everyone. I am trying to build IR relay switch and i am running into some problems. I am using TSOP 1736 to turn on ne555 in monostable mode, but i often get some false triggering. I measured output of the IR sensor and it's perfectly stable. I assume problem comes from ne555. I tried everything i could think of, like adding capacitors to some pins of 555 but nothing helped. There's schematic link below. Everything is the same except i am using phone charger to power the circuit and I don't have 7805 regulator in my circuit. Sorry for the long post. I am hoping someone will help me to resolve this issue.
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