Home |
Map |
Projects |
Construction |
Soldering |
Study |
Components |
555 |
Symbols |
FAQ |
Links
Download PDF version of this page
The badge consists of eight LEDs arranged in the shape of a heart. One LED is lit at a time and this 'chases' round the shape. It would be easy to adapt this project to create other shapes with the eight LEDs. This project uses a 555 astable circuit to provide the clock pulses for the 4017 counter.
A kit for this project is available from
RSH Electronics.
If you are new to electronics buying a kit is a good way to be sure you have the correct parts for the project.
Return to Projects page
This website uses StatCounter cookies to estimate the number of unique visitors. No personal information is stored in the cookies. If you would like further information or wish to refuse these cookies please visit the StatCounter website. © John Hewes 2013, The Electronics Club, www.kpsec.freeuk.com
Heart-shaped Badge Project
A kit for this project is available from RSH Electronics.Download PDF version of this page
The badge consists of eight LEDs arranged in the shape of a heart. One LED is lit at a time and this 'chases' round the shape. It would be easy to adapt this project to create other shapes with the eight LEDs. This project uses a 555 astable circuit to provide the clock pulses for the 4017 counter.
Parts Required
- resistors: 2.2k, 47k, 270 ×8
- capacitors: 0.1µF, 1µF 16V radial
- red LEDs ×8
- 555 timer IC
- 4017 counter IC
- DIL sockets for ICs: 8-pin, 16-pin
- on/off switch
- battery clip for 9V PP3
- safety pin to attach badge
- ribbon cable 9-way about 1 metre (to connect badge to main circuit)
- stripboard: 16 rows × 19 holes for circuit, 10 rows × 9 holes for badge
Stripboard Layouts
Circuit diagram
A kit for this project is available from
RSH Electronics.
If you are new to electronics buying a kit is a good way to be sure you have the correct parts for the project.
- Electronics Club Home Page
- Site Map
- Example Projects
- Construction of Projects
- Soldering Guide
- Study Electronics
- Electronic Components
- 555 Timer
- Circuit Symbols
- Frequently Asked Questions
- Links to other Electronics sites
This website uses StatCounter cookies to estimate the number of unique visitors. No personal information is stored in the cookies. If you would like further information or wish to refuse these cookies please visit the StatCounter website. © John Hewes 2013, The Electronics Club, www.kpsec.freeuk.com
No comments:
Post a Comment