Description

The CP800 circuit is designed to fulfil the function of developing films with drum rolling and it consists of the following requirements

1) Control the fluid flow of developing film

2) Control the temperature of the fluid

3) Control the motor for the rolling action

4) User interface

List of features in planning

Please read this in conjunction with the software plan, since back-end development of the software will be highly tied with the hardware development.

• Multiple heating element array control, if each storage chemical needs to be kept at a different temperature

• Temperature PID controller (software)

• Allow the use of 100VAC, there will be a transformer to step down higher AC voltage to 100VAC, this allows the machine to work in country with a different phase voltage, by converting them all to 100VAC.

• Program the microcontroller to control the backlight of the LCD screen if required. (software)

• Program that allows a selection to read from the digital input of the Dpad via the serial output from the shift register. (software)

• Implement an on and off software button using the LED button mounted on the Dpad. (software)

• Earth all solenoid to a common point.

• Overvoltage and undervoltage protection

• Quick self-diagnosis button or additional debugging display (led on communication...etc)

• Float sensor feedback for each storage tank