A programming challenge involving piezo sensors, LEDs, and relays

Drewkus · September 27, 2019, 3:12pm

seems to work great!

bhofmann · September 27, 2019, 5:04pm

I can see from the video that the test mode works which is great news. Looked like the target sensors were working as well but I could not see the values on the LCD clearly. I think the room is either too dark, or the LCD is too bright and the camera can’t adjust for both.

Does that mean that the whole thing is working now? Looked to me like it was showing player 1 and player 2 times at the end, but that might just be because you didn’t press the button to reset them after the test mode?

Please let me know what’s still not working and I’ll have a look at the code again. I’m over at friends tonight and might not be back until tomorrow. Sorry, I’ll get on it as soon as I’m free again.

bhofmann · September 28, 2019, 6:13am

Once this is working, or maybe just as my next update, I’d like to refactor the code. That means changing how it’s written without changing how it behaves. The two functions are far too long and that makes them difficult to read and understand. My hope all along has been that sharing the code will be clear enough that you’re interested to learn more, or the next person to visit this thread will look at the history of the code file and see how things can be written.

Drewkus · September 30, 2019, 2:28pm

Okay so the thing appears to work really well! it still on rare occasion wont reset but other than that the test mode works well and it appears to all be sensing well. also as far as it working after the test mode it also adds the time it took to cycle through the test mode to the reaction time but this only happens after you enter test mode. If you don’t enter test mode then it works just fine.

bhofmann · September 30, 2019, 3:20pm

Still, a bug I can easily fix so I’ll do that after work this evening.

bhofmann · September 30, 2019, 3:23pm

Let me take those opportunity to say how rewarding it’s been for me to help you on this project. Your feedback has been encouraging and detailed.

Drewkus · September 30, 2019, 3:24pm

hey i totally couldn’t have done it without you and I’m thrilled that you are as excited as i to do it! without a doubt I will continue increasing my understanding of python and the arduino language!

Drewkus · October 9, 2019, 2:57pm

so what changes have you made?

bhofmann · October 9, 2019, 5:00pm

I’m sorry, I’ve been snowed under at work. Had to work 6 days last week and will be doing the same this week again.

I might have some time tonight to review and update the code.

bhofmann · October 9, 2019, 6:43pm

Right… I can’t see why the target times would include the test time from the diagnostics run. Might be just me being dead on my feet.

I’ve refactored the code into methods to make it easier to comprehend. In theory nothing should have changed with regards functionality/operation. You’ll notice that the Setup and Loop methods are now a lot shorter and easier to understand:

github.com

bernhard-hofmann/circuito.io-3392/blob/master/Targets/Targets.ino

// Include Libraries
#include <Wire.h>
#include "Arduino.h"
#include "LiquidCrystal_PCF8574.h"
#include "Button.h"
#include "Relay.h"

// Pin Definitions
#define PIEZOVIBRATION1_PIN_NEG A3
#define PIEZOVIBRATION2_PIN_NEG A1
#define ARCADEBUTTON_PIN_NO       2
#define relayModule1_PIN_SIGNAL 3
#define relayModule2_PIN_SIGNAL 4

// Global variables and defines

// There are several different versions of the LCD I2C adapter, each might have a different address.
// Try the given addresses by Un/commenting the following rows until LCD works follow the serial monitor prints.
// To find your LCD address go to: http://playground.arduino.cc/Main/I2cScanner and run example.
#define LCD_ADDRESS 0x3F

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bhofmann · October 12, 2019, 12:41pm

Where do we go from here @Drewkus? Do you want me to make further code changes, or are you happy with it as it is now?

I’m hoping you’ll post a video of the final build in use!

Drewkus · October 15, 2019, 2:21pm

Yes! finally got back from a long unexpected family trip. Ill give it a go as soon as i return home today and will progress to getting the final product ready for everybody to see!

bhofmann · November 5, 2019, 7:58am

I hope all is going well with your project. It could make an interesting video of all the trial and error leading up to the final product.

bhofmann · February 14, 2020, 5:59am

What happened too this project @Drewkus? I’m hoping you and your body have had so much fun playing with it you’ve forgotten to post a follow up?