[Lab] PIR, IRF540, PN2222, LED Strip, Arduino

[Bruce Harding]

The breadboard is only proof out the concept.

Bruce

On Sat, Mar 17, 2018, 8:23 PM Darcy Whyte, <darcy at inventorartist.com> wrote:

> Not sure who's coming to the hack613 meetup tomorrow but I wouldn't be
> surprised if someone could help. I might be able to...
>
> It's not clear what you want though. You mean making the circuit on a
> breadboard?
>
>
>
> --
> Darcy Whyte
>
> Art+ inventorArtist.com <http://inventorartist.com/> | Makerspace
> hack613.com | Aviation rubber-power.com
> Contact: *darcy at inventorArtist.com* <darcy at inventorArtist.com> |
> 613-563-3634 by appointment (no text)
>
>
> On Sat, Mar 17, 2018 at 3:10 PM, Bruce Harding <bsharding at rogers.com>
> wrote:
>
>> Hello,
>>
>> I'm trying to get the pinning right for a project where a PIR triggers a
>> LED strip to turn on.  I'm having real trouble getting the pinning on the
>> breadboard right. If someone is willing to take a look at it I'd be
>> grateful. Beer or coffee on me.
>>
>> I'm using:
>>
>> 12v 3A power supply
>> PIR
>> IRF540 Mosfet
>> PN2222 Transistor
>> 1m Warm/White LED Strip
>> Arduino Uno
>>
>>
>> Code:
>>
>> //constants
>> const int ledPin = 5;
>> const int sensorPin = 4;
>> const long stayOnPeriod = 900;   // length of time to stay on (in
>> milliseconds)
>>
>> //variables
>> unsigned long turnOffTime = millis();  //Start with the led turned off
>>
>> void setup() {
>>   pinMode(ledPin, OUTPUT);
>>   pinMode(sensorPin, INPUT);
>> }
>>
>> void loop() {
>>   // check if the sensor is detecting then increase the time to stay on.
>>   if (digitalRead(sensorPin) == HIGH)
>>   {
>>     turnOffTime = millis() + stayOnPeriod;
>>   }
>>
>>   if (turnOffTime > millis())
>>   {
>>     digitalWrite(ledPin, HIGH);
>>   }
>>   else
>>   {
>>     digitalWrite(ledPin, LOW);
>>   }
>> }
>>
>>
>> --
>> ====
>> bruce
>> faintfuzzies.ca
>>
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>
>
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