offsec | random notes/links/examples I made on various security tools | Hacking library

My intention is a program a system that turns on at a certain time and also turns off at a particular time. But the problem I'm facing is that each time it gets to the scheduled time to turn on the sensor starts sensing motion even when there's no motion for a few seconds after that it goes back to normal. Normal in the sense that it stops sensing motion when there's no motion. I ran a basic motion dection code using PIR sensor and led just to check if the sensor is working properly, it worked out fine so I don't really know why I'm still getting that error. Please how can I eliminate this error cus I have very little knowledge on how to program an Arduino.

This code is meant to be useful for detecting an intruder at a particular time interval, then it turns on 2 led's and a buzzer and then send a text message to the pre-programmed number. But the challenge I'm facing is that when the system comes on the pir sensor keeps sending a logic 1 and that in turn makes the gsm module to keep sending text message even when no intruder is in range also immediately the scheduled time elapses the sensor then again sends a logic 1 before finally going off. Secondly the text message I receive shows Content not support. Please I'm really in need of help I'm confused and I don't know what to do anymore.