IR door alarm: kid monitoring

Discussion in 'The Projects Forum' started by karmaker, May 23, 2015.

  1. karmaker

    Thread Starter New Member

    Apr 28, 2015
    Building this project to alert me when my kid leaves the main door unsupervised. If I connect an IR obstacle sensor module with a relay breakout board and let the relay to switch on the alarm circuit, it should work (theoretically).

    Using following component:
    IR sensor:
    Relay board:

    My problem is the second IR sensor on top. The "IR Obstacle Sensor Module 1" in the picture should reset the alarm. But, struggling to connect it to the system.
  2. DickCappels


    Aug 21, 2008
    If you can, please post a diagram of what you have at the moment.