› Forums › General Questions and Comments › Flash not fire
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Pisit NakjaiGuest
I created the PCB follows your diagram but my trigger flash and camera are swop.
My trigger flash at pin 12 and camera at pin 10 and 11. I try to change a pin number in the program but It doesn’t work.
I wrote the easy program to check my PCB board. The Flash can fire.
this is my code.
const byte FT1_PIN = 12;
void setup() {
// put your setup code here, to run once:
pinMode(FT1_PIN, OUTPUT);
digitalWrite(FT1_PIN, LOW);
}void loop() {
// put your main code here, to run repeatedly:digitalWrite(FT1_PIN, HIGH);
delay(200);
digitalWrite(FT1_PIN, LOW);
delay(1000);
}However, I upload and change my flash trigger to be pin number 12 in your code. The flash, not fire. How can I solve it? or I miss something?
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MartynKeymaster
I strongly suspect you have mis-connected things. To be sure I would need to see your PCB design files.
The pins can be changed, see the start of the sketch:
const byte CT_SHUTTER_PIN = 12;
const byte CT_FOCUS_PIN = 11;const byte FT1_PIN = 10;
const byte FT2_PIN = 9;
const byte FT3_PIN = 8;Just change the above to suit what connections you want. Please note; if you upgrade the sketch you would need to change the pins again.
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Pisit NakjaiGuest
Thank you for your response. I found my problem. I upload firmware v3 to my board that is version2. Now I downgrade to version2. It’s ok.
Thank you.
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MartynKeymaster
Glad you found the issue.
I am now so focused on version 3 I forget to include older versions when trouble shooting.
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