Hi All
Just joined the forum and I'm very new to both programming and circuitry, but wanted a bit of a project so here i am!
I've built a timelapse slider/rail and want to power it using an arduino uno and geared dc motor at the moment. That i have managed! Although, I'm only getting a very basic move - stop - move action (which is fine for now, although I'll need to time my shots!)
I picked up the following from a local Maplin store as they didn't have actual arduino LCD or motor shield in store. The motor shield works fine, as does the LCD...seperately.
http://linksprite.com/wiki/index.php5?title=16_X_2_LCD_Keypad_Shield_for_Arduino#Introduction
http://linksprite.com/wiki/index.php5?title=Motor_Shield#Introduction
I want to basically have the LCD buttons able to move and choose between different presets if you like, within the code. For example, the motor moves for 1 sec but stops for 30. Or moves for 3 sec and stops for 3 secs. However, I'm having a real struggle joining the two shields together then getting the code right. The motor shield doesn't allow mounting on top like others do, so I used a breadboard and jumped them across with the LCD on the UNO
The code I am using is:
#include <LiquidCrystal.h>
// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(8, 13, 9, 4, 5, 6, 7);
char text[]="ISO 100 Photography Timelapse Controller";
int pinI1=8;//define I1 interface
int pinI2=11;//define I2 interface
int speedpinA=9;//enable motor A
int pinI3=12;//define I3 interface
int pinI4=13;//define I4 interface
int speedpinB=10;//enable motor B
int spead =95;//define the spead of motor
*void setup() *
{
// set up the LCD's number of columns and rows:
lcd.begin(16,2);
pinMode(pinI1,OUTPUT);
pinMode(pinI2,OUTPUT);
pinMode(speedpinA,OUTPUT);
pinMode(pinI3,OUTPUT);
pinMode(pinI4,OUTPUT);
pinMode(speedpinB,OUTPUT);
}//--(end setup )---
void loop() /
{
unsigned int i=0;
// set the cursor to (0,0):
lcd.setCursor(0, 0);
// print from 0 to 9:
while(text*!='\0'){*
_ lcd.print(text*);*_
if(i>=14)
{
* lcd.command(0x18); //Scrolling text to Left*
* }*
* delay(50);*
* i++;*
* }*
* // turn off automatic scrolling*
lcd.noAutoscroll();
// clear screen for the next loop:
lcd.clear();
analogWrite(speedpinA,spead);//input a simulation value to set the speed
* analogWrite(speedpinB,spead);*
* digitalWrite(pinI4,HIGH);//turn DC Motor B move clockwise*
* digitalWrite(pinI3,LOW);*
* digitalWrite(pinI2,LOW);//turn DC Motor A move anticlockwise*
* digitalWrite(pinI1,HIGH);*
}//--(end main loop )---
void stop()//
{
* digitalWrite(speedpinA,LOW);// Unenble the pin, to stop the motor. this should be done to avid damaging the motor.*
* digitalWrite(speedpinB,LOW);*
* delay(2500);*
}//--(end main loop )---
With this setup, both shields have power from a 9v to the UNO and 9v to the motor shield. the letters scroll but I can't get them to auto stop, and the motor won't run. There is a small LED on the motor shield blinking at me marked as IN1.
I apologise for the long first post, just struggling along and would really appreciate a few pointers!! 
TIA
Jay