555 Timer - LED Kitchen Timer

Homemade LED kitchen timer based around the 555 Timer IC
I built this around 5 years ago before i started using PIC microcontrollers, 2 digit display shows number of minutes counted not very accurate, but designed as a cooking timer.

this project has the following ICs
1x 555 Timer
2x 4015 shift registers
1x 4017 decade counter
2x 4026 7seg display counter

2x 4049 Invertor buffer
2x 4050 buffer ic

Category:

Science & Technology

Tags:

• 555
• timer
• 4017
• 4026
• led
• kitchen
• ne555
• veroboard
• homemade
• diy
• electronics
• logic
• 555 timer
• cooking
• dave
• welburn

[fyesan13]

please? a circuit diagram? please??

[wellyb00t]

@fyesan13 see above coments.....no diagram available....built a loonnnnng time ago

[Slovenija12345]

can u send me schematic?

[wellyb00t]

@Slovenija12345 see other comments, no circuit diagram available, thanks

[robot797]

@wellyb00t aaaw pleas supply a circut diagram

[wellyb00t]

@robot797 see above coments.....no diagram available....built a loonnnnng time ago

[wellyb00t]

@iamdarkyoshi Not bad for a 555 timer!

[mrioawnat]

This is cool! Would you post how you made it on Instructables or somewhere? It would be a kick to build one with my kids. Also, is there a way to get it to count down? Thanks for posting!

[erlendmf]

do you have schematics? im just kidding. cool :)

[HUSTLEBANE]

cool

[wellyb00t]

@Slovenija12345 built sokme years ago and no diagram for it, see above comments for how it works, cheers

[musti93ful]

gReaT woRk!!!