so it's taken longer than I had hoped but I have finished developing an arduino based controller, I'm planning on putting together a kit for the shield to plug into an arduino to give a convenient way to connect up the pump, SSR, Buttons and buzzer. With the shield all you will need to make a full functioning controller is
an arduino uno compliant board ,a box, four pushbuttons, a 12v supply , SSR and various hardware to complete it.
I have worked out that the shield will cost about $35-$40 , so to make a controller the cost would be around the $150 mark.
now the reason for this post is to gauge interest in the shield before I go ahead and order the parts and PCB, I'm planning on doing a run of 10
here are some photos of the prototype that I have been using to develop the code
the PCB in the kit will be professionally made so it will be green like the bonjuino plugged into it.
I have finished the code and I have put more features in it than my first controller, like being able to adjust the number of stages from 1 to 9 so that when you come to set the stages you only see the number that you have selected, also up to 8 hop addition alerts, the pump rest should work better and it looks a bit better on the screen.
cheers steve