Gareth
I got a Chromebook for Christmas just have to get the details on it as my camera club has asked me to do a demo sometime
Hi Pete.
Thanks for reading it all! It certainly has snowballed a bit for sure!!
Indeed, breadboards can be a bit 'floppy' with connections sometimes, especially when they're a bit long in the tooth....which is why I bit the bullet and soldered mine in the end.
But I think you're right, getting another would be an improvement.
With regards to your Serial Monitor query, I think you might need to change the 'line return' setting.
It should read 'No line ending' - see the image below...
View attachment 263860
This way, it will wait for you to enter the values one by one, and then display what you have entered when you hit the start button.
Hope this helps Pete, keep me posted, and when you have a working setup, I'd love to see some water drop images.
I'm always happy to help if I can.
Best of luck!
Gareth
I got a Chromebook for Christmas just have to get the details on it as my camera club has asked me to do a demo sometime
)
Gareth
Your work is always interesting
), but suffice to say that there are several ways to deal with it.) - LINK
)
/* Water Drop Controller V4
*
* By Gareth Bellamy
*/
//This is where we assign our Arduino pins and declare our variables
const int camPIN = 9; //Set camPIN (camera) to pin 9
const int solPIN = 10; //Set solPIN (soleniod valve) to pin 10
int DropOneSize; //1st drop size input variable (milliseconds)
int DropTwoSize; //2nd drop size input variable (milliseconds)
int SolDelay; //Set delay between drops (milliseconds)
int CamDelay; //Set delay between drops and camera activation (milliseconds)
void setup() {
//Here is where we turn on the serial monitor and tell the Arduino
Serial.begin(9600); //Start the Serial Monitor
pinMode (camPIN, OUTPUT); //Set camPIN to an output
pinMode (solPIN, OUTPUT); //Set solPIN to an output
//Here is where the time delays will be entered into the serial monitor
Serial.println(" "); //Print a space for ease of reading the text
Serial.println("Enter 1st drop size in milliseconds "); //Print text asking for 1st drop size
while(Serial.available()==0) {} //Wait for user input for 1st drop size
DropOneSize=Serial.parseInt(); //Read user input
Serial.println("Enter 2nd drop size in milliseconds "); //Print text asking for 2nd drop size
while(Serial.available()==0) {} //Wait for user input for 2nd drop size
DropTwoSize=Serial.parseInt(); //Read user input
Serial.println("Enter the delay between drops in milliseconds "); //Print text asking for time delay between drops
while(Serial.available()==0) {} //Wait for user input for delay between drops
SolDelay=Serial.parseInt(); //Read user input
Serial.println("Enter camera delay in milliseconds "); //Print text asking for camera delay
while(Serial.available()==0) {} //Wait for user input for camera delay
CamDelay=Serial.parseInt(); //Read user input
//This section will print the value entered above for clarity and record keeping
Serial.println(" "); //Print a blank line for neatness
Serial.print("1st drop size "); //Print 1st drop size
Serial.println(DropOneSize); //Print value DropOneSize
Serial.print("2nd drop size "); //Print 2nd drop size
Serial.println(DropTwoSize); //Print value DropTwoSize
Serial.print("Valve delay "); //Print Valve delay
Serial.println(SolDelay); //Print value SolDelay
Serial.print("Camera delay "); //Print Camera delay
Serial.println(CamDelay); //Print value CamDelay
}
void loop() {
//This next section is where we will use the times entered above to activate the solenoid and camera
digitalWrite (solPIN, HIGH); //Opens solenoid valve
delay (DropOneSize); //Valve stays open for time value DropOneSize - 1st drop size
digitalWrite (solPIN, LOW); //Closes solenoid valve
delay (SolDelay); //Time delay between drops
digitalWrite (solPIN, HIGH); //Opens solenoid valve
delay (DropTwoSize); //Valve stays open for time value DropTwoSize - 2nd drop size
digitalWrite (solPIN, LOW); //Closes solenoid valve
delay (CamDelay); //Time delay for camera activation
digitalWrite (camPIN, HIGH); //Sets camPIN to high - fires camera
delay (100); //Holds camPIN high for 100 milliseconds to ensure signal
digitalWrite (camPIN, LOW); //Sets camPIN to low -
delay (5000); //Delays the cycle for 5 seconds
} digitalWrite (camPIN, HIGH); //Sets camPIN to high - fires camera
delay (100); //Holds camPIN high for 100 milliseconds to ensure signal
digitalWrite (camPIN, LOW); //Sets camPIN to low -
Gareth
its a camera problem was using my 6D and when you said you were going to try your 7D I thought I'll try my other camera the 5D MKlll, put it on and it never missed a shot.
I'm sorry for causing you all that trouble going well now will let see the results soon
...I quite like troubleshooting....I had just done some quick tests and found that it worked fine for me, so I knew it might have been some other reason.
Hi Jim.
That 330 ohm resistor is a current limiting resistor for the LED inside the optocoupler.
You shouldn't replace that with a 10K resistor.
Instead, put the 10K resistor from the Arduino side of the switch to Vcc, and a 100nF capacitor from the same side of the switch to GND.
Like so:
View attachment 264549
I hope my diagram is ok....it's getting a bit congested!!
, the only thing I remember from school was connecting a battery and bulb and using a wire round resister to alter the brightness. 
