My (mostly) completed Control Circuit

[Draco Rylos]

Hey guys, It's been a while since I posted here. I've been working on the control circuit trying to get it figured out. I've switched from using CMOS Logic to using a PIC Microcontroller. The Pic I'm using is a 16F628. Check out my circuit and see if you can see problems that you may find with the circuit and the associated Indicator circuit. I'm still puzzling out the program for the PIC. If anyone wants to help out I'm including the logic for my circuit at the bottom of this post. You may have to right click the first picture to see it, because its pretty big even though all of the images come straight from Eagle 5.2.0



Circuit Logic:

Upper + Lower Sensor = 1; Operation = 1; Warn = 0; Refill = 0; PWM = 1; Pump = 0
Upper Sensor  = 0; Lower Sensor = 1; Operation = 1; Warn = 1; Refill = 0; PWM = 1; Pump = 0
Upper Sensor  = 0; Lower Sensor = 0; Operation = 0; Warn = Flashing (45 Hz); Refill = 1; PWM = 0; Pump = 1
When the upper sensor goes high return to first state