Using only 2 capacitors, 3 resistors, 4 BIG seven-segment Display, 1 xtal, 2 switches ,and 1 Microcontroller PIC, you can build this Digital Led Clock main circuit.

you can use common anode or common cathode display, just select the display type. Here is the pinout information:(I have attach the all diagrams of parts and 7 segments)

I'm used 4x 6" big 7 segment display's.

​Ok now everyone who need this kit buy over here:


Step 1: Simple paper copy schematic

here is the schematic and part list for the project.

IC - PIC16F628 / PIC16F84A
Sir.. I have one 7 Segment display which displays battery voltage.. I have c program file also. Can u modify that program to didplay it as battery percentage thats 0 To 100 Max..if u r ready to help me. I will send the full project to u.. Plz reply to my e-mail id.. <br><br>mail.moonlite@gmail.com
gotta try this at home!!!!!!<br>i have never tried programmin a pic before<br>Gotta Try this
good idea.try try!!I have uploaded all the details with hex file for PIC16F84A.Hope you can work this out well.Good luck!
<p>hi slwthr, what are the things (software and hardware) I need to program my microcontroller and load the hex files?</p>
<p>can you send me the list of the entire circuit diagram including the power supply?? and do you have a hex for pic16f87??</p>
Can you send the list of the entire parts and entire circuit diagram of big seven segment clock to email below.<br>saba.sechennai@gmail.com
please download the full project Clock.rar file in this page..Thanx!
<p>hello slwthr, please help me get a pdf or details of how to build the 7 segment digital clock. this is ma email: ozbone2@gmail.com ......thank you!!!!</p>
<p>Ok now everyone who need this kit buy over here: <br><br>http://innovatemodz.com/shop/uncategorized/digital-clock-diy-kit/</p>
<p>can anybody send me a pdf on dis 7 segment digital clock, please!!!</p>
is there any reason why you use a950 and c1815 transistor?can i replace it?
No special reason for C1815 but I used A950 because its a darlington transistor which came in small package.. You can replace it
Thank you for your wiring, it help me in my design of my big clock also. I was stuck with the multiplexing the 12V led segments, great instructable
Your welcome you moustick
hello , bro can u plz send me the ciruict diagram along with the pic program for big 7 segment clock on my email id.... <br>
Helo sir, can u please send me the MicroC files for Big 7 segment clock. <br>uthmanjta@gmail.com <br> <br>thanks
Hi, please send the details for Big 7 segment clock. <br>(with hex file) <br>saiful.s@hotmail.com
hello, <br> <br>can you send me full details of this clock? <br> <br> <br>rafa.nun@hotmail.com
please download the full project Clock.rar file in this page..Thanx!
Sent a new design with hex code
Can you please send me the full details of this project with a proper circuit diagram ?<br><br>abhik14@gmail.com
Have you .hex File for PIC16F628
Sorry!I heven't
Hi im interested on this very much.....can you please send me the circuit diagram and the .hex file if using PIC16F628A??<br><br>invdilshan@gmail.com
I don't have one for 16F628A..got one with 16f876
Hi, im looking at replication this and i was wondering if you could tell me where you got the 7 segment displays, and if you could send me any of the relative informtion on the circuit. Cheers dan<br><br>d.p.sanson@gmail.com
Here is the link for Large 7 Segment Display..Bit expensive than in Sri Lanka market.<br><br>http://www.ebay.com/sch/i.html?_nkw=7+segment+large<br><br>http://www.ebay.com/itm/MEGA-LARGE-122x90mm-LED-7-SEGMENT-DISPLAY-Ultrabright-Green-Anode-LARGE-CLOCK-/150751509515?pt=LH_DefaultDomain_3&amp;hash=item23197d7c0b#ht_2131wt_1265<br><br>And sent the mail with new design!
Can you send the list of the entire parts and entire circuit diagram to email below.<br>I only have 4 pcs. of 3 inch displays, will the clock work if I use them instead of the bigger displays. <br><br>Email- ed13_@hotmail.com
Sent a new design with hex code
Hi, can u please send me the ciruict schematics and help me about how to connect the 7 segment displays to my microcontroller? I am using Bare_Bones Board as my microcontroller and was trying to use 74hc595 bcd, but my clock doesn't work.... Could u please help me
Dear friend,I haven't try any microcontroller circuit using &quot;Bare-Bones Board&quot;..I only used PIC microcontroller and assembly or C compile software's. But Bare-Bones Board has a Atmel chip and its own software nah.<br><br>Why your clock not working? what trouble you guess? what schematic you want?
hi sir! can you pls help me to do a 7 segment clock (the small one like a match box) i just need the seconds .. what IC and schematic diagram will I going to use ??
hi bro i'm doing my 3rd yr ece but doesnt knw the basics but i like to do this clock so plz help me bro give me guidance and sent all the info of this clock to me<br>plz.....<br>vasanthsam22@gmail.com
cool..<br>can you send me full details of this clock, <br><br>r_honrado@yahoo.com
hi send me full details of this clock, <br><br><br>saqlain.naqvi@gmail.com
Hi, Can also send me &quot;yixiong.86@gmail.com&quot; thanks
Sent a new design with hex..
hi plz mail me the he code i hav to try its nice<br><br><br>mail id: getzz@in.com<br><br>ty
hey bro can u plz send me the ciruict diagram along with the pic program on my email id....<br><br>nikhil.patankar390@gmail.com
Can u plz send the full circuit to me in mail<br><br>albinvadakkekara@gmail.com<br><br>
Check your mails.I have sent the mail with attachment.
hye arduino.. nice clock! actually i want to ask you on how to do a digital alarm clock. it is my project actually. i have created my pcb and have troubleshoot it, but it doesnt work.. i have try it for many times. i have used 3 latch and 1 buffer which is 74574 and 74245, 4 seven segment, resistor, buzzer, capacitor, transistor, decoder 7447. i dont know how to check the part where have a problem. can you please help me. =)<br>
hey..Thanx a lot :).Ah nice Idea and I have some design for alarm digital clock.when I finish the schematic drawing i will post it.and i have som other schematic which i have found from other site.I will send it to u. You tried for Big 7 Segments or Small one's?? Me too got a lot problems when using big 7 segments.Coz of 7 segment working power and current problems. but now its bit solved.hope i can help you.Do you have any schematic of your circuit?
welcome =) i tried for small 7 segment. when i trobleshoot my pcb, it show negative result. how sad.... =( you mean pcb circuit ? yes i have one.
No worries :) ah that's good first you should try with small one then can develop to a big one.Like can develop for Big 7 segments with Darlington array (ULN2803 and UDN2981) I have correct Circuit and schematic for this darlington array big clock.I can mail you these clock schematic and hex file for you.Please inbox your email. what you mean by troubleshoot your pcb? you tried with your own pcb design? didn't you check weather your circuit works or not on any project board?? Want to see your clock circuit design and code..if you can mail me please. =)

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