I decided to become an Arduino user and would like suggestions on how to choose which Arduino model I should buy which I can learn further to develop my design idea below
I live in a block of apartments and I do not have easy access to the roof top to monitor my water tank level. I already designed an electronic circuit that checks my water tank level. The design includes also controls that automatically switches on and off a water pump to fill up the water tank when it reaches pre-determined levels. In my design there is also monitoring circuitry that when I leave my apartment can be enabled manually and checks if there is any water leakage from the water outlets or if water is being stolen. The sensing circuitry I designed also allows for false triggering since the wind can effect the water level inside the tank by creating ripples. Such false triggering is counted up to a certain limit and is reset every 2 minutes. However, if water is leaking from a defective seal in the plumbing system or water is being stolen from the water tank and the trigger limit is exceeded during those 2 minutes, my circuit then triggers the home alarm and I receive an SMS on my mobile phone indicating that a zone has been triggered. Besides, when an alarm is triggered, the control circuitry to switch on the pump is disabled. In case of water leakage, this feature will avoid flooding and associated costs. I can use different methods of sensing with my circuit design such as a multi-turn potentiometer with pulley and float, I can use the ADXL335 accelerometer, or I can also use a pressure sensor such as the MPX2010. Whichever method of sensors I will be using, kindly note that the distance of cabling between the sensor and the Arduino / control circuitry is about 15 metres apart.
All of the above has been designed on a simulator software and I admit that the circuit complexity is not so easy. Before deciding to go any further with my circuit hardware comprising op-amps, counters, and logic gates, I would like to evaluate whether it is less costly and less complex to achieve the same results with Arduino or not.
Thank you for your time ! :)