Go Down

Topic: Rfid Door Lock (Read 4 times) previous topic - next topic

Bobbyfox2

Q1... What is the voltage and current is your door strike

Q2... I am having trouble seeing where the prototyping board connects to the id-12 could you please help me out

Q3... I am also having trouble seeing how the buzzer connects up could you please help me

Q4... Could you please tell me if the transistor that i have will work. Here is the link: http://www.jaycar.com.au/productView.asp?ID=ZT2468

Q5... Is that a diode just behind where the door lock connectors are if so could you please tell me what diode i need

Q6... Could you please tell me what resistor or resistors i need could you please tell me

Q7... Could you also please tell me where everything goes on the prototyping board if you could do that it would be very much appreciated

Q8... could you also please tell me what D8, D7, etc.  mean

Bobbyfox2

would this transistor be better

LINK:  http://www.jaycar.com.au/productView.asp?ID=XC4244

GaryP

My door lock uses 24V.
Thanks for asking.

Cheers,
Kari
The only law for me; Ohms Law: U=R*I       P=U*I
Note to self: "Damn! Why don't you just fix it!!!"

Nick Gammon

I think this question was addressed at me, based on various personal message I have got recently. :)

In particular with reference to this project:

http://www.gammon.com.au/forum/?id=11283

Quote
Q1... What is the voltage and current is your door strike


12V. Not sure of the current. Still, it's the current of your strike that is important, right? A few hundred milliamps from memory.


Quote
Q2... I am having trouble seeing where the prototyping board connects to the id-12 could you please help me out




As shown above.

Quote
Q3... I am also having trouble seeing how the buzzer connects up could you please help me


As shown in the circuit.

Quote
Q4... Could you please tell me if the transistor that i have will work. Here is the link: http://www.jaycar.com.au/productView.asp?ID=ZT2468


That should be OK.

Quote
Q5... Is that a diode just behind where the door lock connectors are if so could you please tell me what diode i need


As on the circuit. I used a 1N5822 (Diode Schottky 40V 3A) to protect the circuit from the coil.

Quote
Q6... Could you please tell me what resistor or resistors i need could you please tell me


Are you having trouble reading the circuit?

Quote
Q7... Could you also please tell me where everything goes on the prototyping board if you could do that it would be very much appreciated


Wherever you want to put it, it isn't critical.

Quote
Q8... could you also please tell me what D8, D7, etc.  mean


They refer to the digital pins on the Arduino.
http://www.gammon.com.au/electronics

Nick Gammon


would this transistor be better

LINK:  http://www.jaycar.com.au/productView.asp?ID=XC4244


Looks about the same. Looks like it has the pull-down resistor already installed.
http://www.gammon.com.au/electronics

Bobbyfox2


Bobbyfox2

What does the triangle facing down on the buzzer mean (schematic)

Groove

Per Arduino ad Astra

Grumpy_Mike

It is ground, all those points are connected together.

Bobbyfox2

How do you connect to ground

Groove

Use a big copper spike.
Are you being serious?
Per Arduino ad Astra

Bobbyfox2

how do i ground to the board

AWOL

Ground, zero volts, earth.
"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.

GaryP


how do i ground to the board



Are you sure you want to do this?

Cheers,
Kari
The only law for me; Ohms Law: U=R*I       P=U*I
Note to self: "Damn! Why don't you just fix it!!!"

Grumpy_Mike

Ground is one of the terminals on the arduino bord. It is marked GND.
All points with that triangle must have a connection to that point.
So join all the triangles together and then connect that to the GND pin.

Go Up