ELCT 201 week 13 Analog ON/OFF control system conversion to Digital ON/OFF control system

(Using op amps and a H Bridge) Analog ON/OFF Control System (Using op amps and a H Bridge) Subsystem 1 Subsystem 2 Subsystem 3 Vin 1 Dead Band (Window height) Window Maker Window Comparator H Bridge (L298n) and DC Motor U.L. Forward L.L. Reverse SP = Vin 2 (Window position) Feedback Mechanical Linkage

(Using op amps and a H Bridge) Analog ON/OFF Control System (Using op amps and a H Bridge) Subsystem 1 Subsystem 2 Subsystem 3 Vin 1 Dead Band (Window height) Window Maker Window Comparator H Bridge (L298n) and DC Motor U.L. Forward L.L. Reverse SP = Vin 2 (Window position) Feedback Mechanical Linkage

(Using op amps and a H Bridge) Analog ON/OFF Control System (Using op amps and a H Bridge) Subsystem 1 Subsystem 2 Subsystem 3 Vin 1 Dead Band (Window height) Window Maker Window Comparator H Bridge (L298n) and DC Motor U.L. Forward L.L. Reverse SP = Vin 2 (Window position) Feedback Mechanical Linkage

DIGITAL ON/OFF Control System Subsystem 1 Subsystem 2 Subsystem 3 Vin 1 Dead Band (Window height) Window Maker Window Comparator H Bridge (L298n) and DC Motor U.L. Forward L.L. Reverse SP = Vin 2 (Window position) Feedback Mechanical Linkage

Intro to Arduino “Hardy Friend” http://arduino.cc/ Specifically, the UNO http://arduino.cc/en/Main/ArduinoBoardUno Getting Started http://arduino.cc/en/Guide/Windows Blink http://arduino.cc/en/Tutorial/Blink

A good first program to download and run /* Blink Turns on an LED on for one second, then off for one second, repeatedly. The circuit: * LED connected from digital pin 13 to ground. * Note: On most Arduino boards, there is already an LED on the board connected to pin 13, so you don't need any extra components for this example. Created 1 June 2005 By David Cuartielles http://arduino.cc/en/Tutorial/Blink based on an orginal by H. Barragan for the Wiring i/o board This example code is in the public domain. */ int ledPin = 13; // LED connected to digital pin 13 // The setup() method runs once, when the sketch starts void setup() { // initialize the digital pin as an output: pinMode(ledPin, OUTPUT); } // the loop() method runs over and over again, // as long as the Arduino has power void loop() { digitalWrite(ledPin, HIGH); // set the LED on delay(1000); // wait for a second digitalWrite(ledPin, LOW); // set the LED off

DIGITAL ON/OFF Control System Subsystem 1 Subsystem 2 Subsystem 3 Vin 1 Dead Band (Window height) Window Maker Window Comparator H Bridge (L298n) and DC Motor U.L. Forward L.L. Reverse SP = Vin 2 (Window position) Feedback Mechanical Linkage

DIGITAL ON/OFF Control System Subsystem 1 Subsystem 2 Subsystem 3 Vin 1 Dead Band (Window height) Window Maker Window Comparator H Bridge (L298n) and DC Motor U.L. Forward L.L. Reverse SP = Vin 2 (Window position) Feedback Mechanical Linkage

DIGITAL ON/OFF Control System Arduino Controller Subsystem 1 Subsystem 2 Subsystem 3 Vin 1 Dead Band (Window height) Window Maker Window Comparator H Bridge (L298n) and DC Motor U.L. Forward L.L. Reverse SP = Vin 2 (Window position) Feed back Mechanical Linkage

Conversion topics Hardware Software

I/O Management Inputs Outputs 2 analog inputs 6 Digital outputs Setpoint Feedback Outputs 6 Digital outputs 1 Forward signal to H Bridge 1 Reverse signal to H Bridge 2 Set Point Display 2 Feedback Display

DIGITAL ON/OFF Control System Arduino Controller Subsystem 1 Subsystem 2 Subsystem 3 Window Maker Window Comparator H Bridge (L298n) and DC Motor SP = Vin 2 (Window position) U.L. Forward Digital Out Analog Input A/D (10Bits) L.L. Reverse Digital Out Analog Input A/D (10Bits) Feed back Mechanical Linkage

DIGITAL ON/OFF Control System H Bridge (L298n) and DC Motor Subsystem 3 Forward Reverse Mechanical Linkage SP = Vin 2 (Window position) Arduino Controller Feed back Analog Input A/D (10Bits) Digital Out

DIGITAL ON/OFF Control System H Bridge (L298n) and DC Motor Subsystem 3 Forward Reverse Mechanical Linkage SP = Vin 2 (Window position) Arduino Controller Feed back Analog Input A/D (10Bits) Digital Out

DIGITAL ON/OFF Control System H Bridge (L298n) and DC Motor Subsystem 3 Forward Reverse Mechanical Linkage SP = Vin 2 (Window position) Arduino Controller Feed back Analog Input A/D (10Bits) Digital Out