Hello to all I hope I'm in the right forum for some advice.
I have a bank LEDs turned on by a key fob which also starts a millis() function whiich in turn displays the start time on my serial monitor. when the LEDs finish flashing I have a switch (manually operated)that signals the arduino to stop the millis () and display the elapsed time on the serial monitor also. everything works fine . I wanted to replace the switch with a wireless sensor( of sorts) that I have put together using a PIR sensor, NANO,and a 433MHz radio transmitter.I have the receiver on the same arduino UNO as the lights .
now I have tested the sensor arrangement and it works fine. when triggered it brings on a LED on the UNO to signal message received. The problem I'm having is that when I'm not triggering the sensor( no LED on) the serial monitor shows readings that should only be displayed when the sensor is tripped .
Sorry for being a bit long with the explanation of my issue but I want to give as much info. as possible . How can I stop the nuisance readings? is the Antenna picking up stray signals? If so, why is it not bringing on the LED as well as the false reading on the monitor. Any help would be appreciated. Thanks in advance.