Bicycle Dynamo With Bracket - 6V 3W


The Danger Shield is an add-on for the Arduino micro controller board. It contains a variety of fun and useful electronic circuits that you can use to do fun and useful things. It is a fully self-contained shield. You plug it into your Arduino, and you can immediately start using it. No extra things to hook up, no external components. Just a really rad board ready to rock.


  • 3 x linear sliders w/ integrated LEDs (each independently hooked up to PWM)

  • 03 x pushbuttons

  • 2 x indicator LEDs (each with a PWM)

  • 1 x piezo buzzer (for making noise!)

  • 1 x temperature sensor

  • 1 x light sensor

  • 1 x knock sensor

  • 1 x 7 segment LED (with shift register)

  • power LED and reset button


What is it for? Whatever you want to do with it!

Bill of Materials (BOM) /parts list

Please enjoy soldering them:

ID Item QtyType
- Danger Shield v1.0 PCB 1 pcb
DIS1 7 Segment LED, green, 0.3in 1 component
IC1 74HC595N 1 component
JP1 100 breakaway header 5 component
LED1-3 5mm green LED 3 component
R1-R3, R7 10K ohm resistor 4 component
R4, R5, R9-R11, R19 560 ohm resistor 6 component
R6, R12-R18 680 ohm resistor 8 component
R8 1M ohm resistor 1 component
S1-S4 Omron B3F-1000 Button 4 component
SG1, SG2 12mm Piezo Buzzer 2 component
SLIDER1-3 Bourns PTL60 Green 3 component
IC2 LM35DZ 1 component
R20 LDR 1 component
JP2 100 breakaway header 40 component

Version Tracker

Revision Descriptions Release
v1.0 Initial public release Oct 04, 2008


Help us make it better

Thank you for choosing Seeed. A couple of months ago we initiated a project to improve our documentation system. What you are looking at now is the first edition of the new documentation system. Comparing to the old one, here is the progresses that we made:

  • Replaced the old documentation system with a new one that was developed from Mkdocs, a more widely used and cooler tool to develop documentation system.
  • Integrated the documentation system with our official website, now you can go to Bazaar and other section like Forum and Community more conveniently.
  • Reviewed and rewrote documents for hundreds of products for the system’s first edition, and will continue migrate documents from old wiki to the new one.

An easy-to-use instruction is as important as the product itself. We are expecting this new system will improve your experience when using Seeed’s products. However since this is the first edition, there are still many things need to improve, if you have any suggestions or findings, you are most welcome to submit the amended version as our contributor or give us suggestions in the survey below, Please don’t forget to leave your email address so that we can reply.

Happy hacking