I designed a water level monitoring system, named WWLMS(Wireless Water Level Monitoring System) using jeenode concept. The sensors used are the reed switches along with resistor network. The output form sensor is fed to analog (A1). The measured level at remote station is sent to a base station and displayed in LCD, an alarm is also attached using relay. The alarm is turned on when the water level crosses some value.
I used RF12demo sketch in the base and a simple sketch on remote side which sends the level data using rf12_easySend() ever second.
Now, on testing the system, it works fine but sometimes following things happen:
1. When starting the system, the alarm goes off quite often.
2. The alarm also goes off sometimes when the water level is below the danger level.
I am quiet new to Arduino and Jeenode. A little help is all I need :)