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Can any one please explain why the solenoid opens and closses without the microcontroller?

Thank you!
Maybe if you had a sensible arrangement of parts and the labels on the 3 Pin thing weren't overlapping. I'm cleaning, I'm not in the mood be deciphering that mess.
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I have an Arduino Elegoo Uno R3 and a Vsionic keypad with multiple user codes. I was wondering if there was a way to program it so each user code unlocked a different cabinet via magnetic lock?

I've successfully used a single keypad for a single lock, but google isn't really helping me figure this out, possibly due to vague wording on my part.

Any help in the right direction would be greatly appreciated. Thanks!
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Generale / Re: IDE che si ricorda la sche...
Last post by gpb01 - Today at 05:53 pm
... sarebbe utile avere un concetto di "progetto" o "solution", cose che sono presenti in tutti gli IDE decenti ...
... infatti, a parte l'IDE di Arduino, che ha però il suo scopo (... è fatto per avvicinare chi NON è del settore e quindi, come per tutti il resto, semplifica al massimo), tutti gli altri lo hanno.

Detto questo, a me, Visual Studio, fa ... 

Guglielmo
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Project Guidance / Re: Can't figure out how to us...
Last post by wvmarle - Today at 05:52 pm
3.3V is 66% of 5V. Some devices read >50% Vdd as high already so 3.3V works well (assuming the line is indeed at that level); others want 70% or even 80% before it's read as high.

As it's sold as a kit I would expect it to work out of the box.
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Quote
i have also gotten rid of the extra brackets that were mentioned
So please post the code as it is now in a new post and use code tags when you do
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Sensors / Re: ads1115 with smoothing can...
Last post by wvmarle - Today at 05:49 pm
What you posted is for sure not your actual code. This doesn't compile, there's a syntax error in it.

In this code (if you would fix it and actually start using it - pretending it's the real thing) you're still taking a single reading from our adc, then start to work on that single reading in the while loop. Take you readings inside the loop.

Code: [Select]

 // take a number of analog samples and add them up
double sum = 0.0; // set the proper type & initialise the variable - that was another error in your code.
int adc0;

for (int i = 0; i < NUM_SAMPLES; i++) { // You ignored the advice to use a for loop!
  adc0 = ads.readADC_SingleEnded(0); // take a sample
  sum += (adc0 * 0.1875)/1000; // Add them all up - this are floating point numbers, won't work in the integer type in your code.
   delay(100); // Doing this 64 times means this loop blocks the device for 6.4 seconds!
}
voltage = sum/NUM_SAMPLES; // Take the average. Note that it's customary to not start variable names with a capital. Style makes your code readable.


That should do.
It's really not hard to take an average of 64 readings, as long as you take 64 readings and not just one!
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Oh crap I even read about that a while ago in the help, I forgot about integer math ,  Thanks for the reply guys.   
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I am looking for someone to help me put together a simple prototype of a temperature / humidity sensor and an RFID reader. Off the shelf components. Boston local ideal. Start ASAP. Let me know if interested and I can share details.

Regards
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