555 Timer Badge Kit

Description

Here is a link to a how to guide to complete the kit: Link

Kit contains all the components needed to complete a blinking badge:

1. Low voltage 555 timer 8 pin SOC
2. 2x 100ohm resistors
3. 1k resistor
4. 100k resistor
5. 22uF capacitor
6. 10uF capacitor
7. 2x green super bright LED’s (Light Emitting diodes)
8. Badge PCB
9. Brass Clutch Back Clasps/pin
10. 3volt lithium coin cell battery CR1220
11. Surface mount battery holder
12. Power switch

Tools Required:

1. A soldering iron
2. ESD tweezers
3. Solder
4. Desoldering braid

Optional equipment:

1. A flux pen
2. A PCB vise
3. Low power binocular microscope

Datasheets:

LMC555Timer

Development notes archive…

New News: The new prototype boards are working great and only need final text revisions.

Old News: Before the the badge needed low voltage 555 timers to work properly. I’m also dropped one of the LED’s and we just having two on the board. After looking over the prototype board I made a lot of changes to the board in Eagle.