Electronic Lock PIC16F877A

[ElectronicNexus]

Very nice! I have been brainstorming something to interface using a pic16f877...could you please email me the code?

[alexis4723pk]

Hi I want to make as my first project, are you using C or assembly? can you share your codes?, thanks

[jonalynpalma]

wow ur so great, i also want to learn how to connect the keypad scanner to the microcontroller PIC16F877, can u give me the link of the schematic diagram, and i also hope that u also have a tutorial on that... and i need also the code.. thank u very much...^_^

[profahmet]

I designed my project. I hope you enjoy:)

h*t*t*p*://profahmetccc.google­code.*c*o*m*/files/16f877keylo­ck.zip

(remove " * " characters)

[ridamortada]

this my calculator

[ace1122tw]

If you are listening to this with headphones and have a gun in your hand, you do feel like james bond.

[moetsimonsful]

@McFlyalbert very nice can you pass me the code?

[alexngu8500]

hi... nice project... can i have the code and schem?. plzz send to my email.. i would like to do also... thankzz

[thefirephoenix33]

hey ah could you pleaaasseee show me how to do this from a website or send me schem and code and ill figure out from there...PLEASEEE!!!:)

[arciwilliam]

esta re aspero ese proyecto

[tangnatalaga]

he did not design this, if he did show me the calculations, and data of how he came up with this. He just followed some instruction on how to build this project he did not design this.

[ossumguywill]

@tangnatalaga there are no calculations involved... at least there should not be.

[tangnatalaga]

@ossumguywill The only thing that matters is it is fun to build something and the challenge of making it work. I forgot this is digital and the biasing has lots of tolerance practically you wont need calculations. You can actually figure out the value in your head.

[ossumguywill]

@tangnatalaga what the hell are you talking about? It's a simple digital lock, you need high, low, and a bit of PWM. That's it.

[dzalf]

Horrible wiring!!! but good work!

[rroge5]

very cool =D.

[tangnatalaga]

you did not design this because you used chips, if you built it from single transsistor then maybe. There are only a few ways to wire a chip, and usually are standards. lol

[KROUTCHY]

...since he's using a pic, it's a programmable device, there are many ways to wire it up(except VDD and VSS :P) and there must be a bit of code to make it run, so i think it's right to say he designed it.

[tangnatalaga]

i guess u are right I am not very good in understanding digital electronics, I do mostly analog circuits.

[cutterschoicenotmine]

@tangnatalaga ok then you do this with transistors, fetch enough breadboard to fill a room!

[andrefsp]

my god! i writed that in assembly =0

Man!! Get sdcc or some other C compiler for microprocessors and you'll se your life will get much more easy

=)

But good work anyway

[Olish08]

Hey mcflyalbert, I had to leave a comment and say you did a good job. Hopefully you can contact me and if possible to spend only the image of the connections of the circuit ... Thank you very much ...

[v8power101]

HAHAAHA you wrote that in assembly ......get a life and seriously a 16F877 you could have done the same thing in a 12C part. and learn how to write C..

[ammirul69]

wow....

amazing!!!

[thebigdash]

can you give an example on how to save it to the Chips Memory or, what would I search for to find out about that?

Thanks,

TheBigDash

[soulreaverdoug]

i don´t know what dou you mean with "save it to the chip" u mean burn the program into the pic or wirte the eeprom memory inside the PIC cause the sequence is in the DATASHEET if you want to program a PIC u need the datasheet without it you are dead it´s like to manage a cellar witouht light, look for the DS

[r0nd0m]

cool!

reminds me spy movies and scifi futuristic machines xD

luve it!!

[edwpra]

????

[Atomic101Heli]

Tcha you know what i already asked and you have to buy it becas\use it his disine

[laParka777]

Is it too hard to transition from 16F877 to 16f84,(a)? if not, would u be willing to explain if only a little?

[honneyier]

Nice work sir can u send me the source code assembly format thanks a lot

[888WhildChild888]

Whys?

He's already said which PIC was used, the rest is a standard matrix keypad and LCD screen.

The code is a little harder to guess though, but you'd be better off making your own so you know whats going on :)

[locouk]

Nice work, shame you fitted the keypad up-side-down! Didn't you notice?

[888WhildChild888]

The kepad connections will be on the bottom, so unless he ran a cable to connect keypad, it would be a bit difficult, especially since its only on a protoboard

:)

[sebzapata]

I like that, that's really cool. Is there a guide on the internet anywhere on how to make this or something simmilar. Also how could you make it lock a door?

[888WhildChild888]

using a solenoid and a relay is my guess :)

[NaagLugYaajUaSi]

Nice work, if power fail, how can you open the lock?

[conrad2468]

you dont

[zeefportugal]

hi.. nice work ! can you send me your parts list and the code you used and schematic? regards

[mindthomas]

Hey. Nice work

What did you programming in?

Assembler, C or Pic Basic?

[draeberg]

This is **** good work. I have send you a message. Please reply!

[jondoe745]

this is a very good idea and has many applications. has to go on my wish list lol

[Metaconta]

Spanish;

Hola:

¿Podrías decirme el nombre de la música del vídeo?

English;

Hello: You could say the name to me of the music of the video?

10/10

[EKARVELAS]

WOW NICE work out there!!!

Can u please send me the code and schematic??

Hoppe it's on C cuz i work my projects with ccs c compiler.

thanks

[EKARVELAS]

Check out my videos maybe i can help some how.

thanks

[atrofimov]

which model of pic16f877a did you use?

[cutterschoicenotmine]

breadboard kicks ass, i dont know why so many developers/hobbists/lecturers dont use it more. It beats soldering onto strip for small circuits hands down.

[RcABuTCH3R]

confirmation needed..

1)Old code?

2)New code?

3)Confirm new code!

[technoshamanarchist]

That's probably a parallel HD44780 based LCD. There's lotsa information on the net about it.

[McFlyalbert]

jimjoke its an standart hitachi LCD with an 8 bit port, so you just read the datasheet and follow the protocol

[Atomic101Heli]

Ok i have parts suplyer you give me all the part numbers and were all set can you help?

[Atomic101Heli]

Plese give the schmatic and part numbers I would like it if you replied. thanks.

[Atomic101Heli]

Sir can u help me ive been waiting a a reposne!

[McFlyalbert]

Atomic101Heli I am sorry about the wait, please check your inbox.

[Atomic101Heli]

Its ok thanks.

[onetaona]

Estas fet un catacrac germanet! ;) un petonet dolcet

[mhz98]

Sinceramente fantástico, pero ya sabes que mis conocimientos abarcan otros campos ;) Enhorabuena