Direct Pump Control Circuits

My going with dumb pump design it means more pins being used on the NXP. However we still have plenty to play with. P5-P30 on the LPC1768 and P5-P36 on the LPC11U24. The LPC1768 has three UART serial connections so I shall reserve two of those for the sensors. So to keep it to common PINS for some reason, P17-20 used for the flow restricted pumps and P5-P7 for the peristaltic pumps.

The peristaltic

The flow controlled

I made a start on the code at http://mbed.org/

For a quick test, I used this code

#include "mbed.h"

DigitalOut myled(LED1);

DigitalOut a1(p5);

int main() {
    while(1) {
        myled = 1;
        a1 = 1;
        wait(0.5);
        myled = 0;
        a1 = 0;
        wait(0.5);
    }
}

to strobe the motor.

The results were satisfying