Instructables

Lightrider DIY Bike Light

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Picture of Lightrider DIY Bike Light
Reed Switch Detail.jpg
Led Detail.jpg
Qick release.jpg
Lightrider2.jpg
Lightrider1.jpg
Made a DIY version of the revolights http://www.revolights.com

total cost for one wheel is about 35 dollar

instead of a microcontroller i use simple reed magnet switches

the two outer rings consist of 18 Led's in 6 groups each all is powered by two AA batteries they are located on the hub

the only thing i don't have because i use the reed switches is the cool animation like revolights when the wheel stands still



Materials:

36x High Power 8mm Led's (18 on each side)
2x two meter long Aluminum stripes 15mm wide (in my case shortened to 1,75 meter)
6x Reed magnet Switch
2x 2meter 7 pin flat ribbon cable (one for each side)
2x 7 pin mini plugs (for easy installation)
Zip ties to mount the whole thing on the wheel

Soldering iron
Hot glue gun
Drill
HumbertoRA2 months ago

WOW

excellent project!!! I will made it

HC

adamrabbit4 months ago
This is excellent! How's version two coming? I'm really excited that I can do this myself!!
T Fergesun5 months ago
Any update on more simple and clear instructions, I really want to build this! and those Revo lights are just ridiculously expensive!
Could this be done with LED strips? http://www.ledsupply.com/r8030aa-white.php

Seems like it would require less wiring? They can be cut into 3 LED sections and wired to the reed switches... Are they too low powered?
Diyler (author)  IAmDougsInstructables5 months ago
Of course you can use led strips. I am actually into building one with led strips for my rear wheel, i just have to finish them. They lay around in my workshop since three months or so :D

When i finish them, i make a new instructable for Version 1.0
naught1017 months ago
What kind of output do those LEDs have? About 8000mcd?
kcoetzee8 months ago
Any idea as to when 2.0 is being uploaded? Keen to build one but will wait for the 'updated' model :)
Diyler (author)  kcoetzee8 months ago
Sorry that you guys have to wait so long. I hope i get it done in about a month or so, the problem is that i have not much free time to do it.

But i will upload the instructable as soon as possible!

flashfreak8 months ago
Hey, so glad to see this.. my wheels are too big to fit the bought version... anything new on your 2.0 version? I'm going to start building it in like 8ish days... cheers!
Wodanford9 months ago
This is so cool! Due to being handicapped, I am bound to a wheelchair. The revolights are out of my reach because of the tires having the wrong dimensions. This is something that comes very close to the revolights and I am so going to give this a try!
caniffis10 months ago
not sure if you have found your batteries yet, if not 23A 12v batteries are the ones to go for, very small and perfect for LED strips.
Diyler (author)  caniffis10 months ago
Thanks for the tip!!!!

i have tried it out and they last very long

version 2.0 will be ready in about a month.
cepi851 year ago
cool video!!!!
Diyler (author)  cepi8511 months ago
Thanks :)
Could you give some more instructions? This is super cool but I can't really tell how you made it.
Diyler (author)  Adambowker9811 months ago
hey sorry for the late reply, right now i´m building a lightrider Version 2.0

it will be ready in a bout a month or so, then i post a new instructable which should be much simpler to build
I think it's a great idea to use reed switches!
Diyler (author)  Mr. Gadgets1311 months ago
hey thanks. yeah it´s simple and cheap thats why i´m use them.
wobbler1 year ago
You have complicated the circuit diagram slightly. It's not necessary to show the wires from the reed switches rotating around to the LED groups. e.g. the white connection from the reed switch could go straight to the LEDs with the yellow LEDs. It's not actually necessary to offset the wiring with respect to the reed switch in reality, you can just position the magnet to a different angle relative to the hub and the LED lighting point should consequently move also.

I presume as you don't have an on-off switch that you leave the bike with the magnet in a dead zone to stop the batteries wearing down when you're not riding it?
Diyler (author)  wobbler1 year ago
yeah you are right it´s a little bit difficult but it´s only a prototype

the on off switch is on the battery case look close

right now i´m into building a much simpler version with smd led strips so it´s less soldering and simpler to install

and a really detailed instructable so anyone can build it
wobbler Diyler1 year ago
No problem- Instructibles is all about prototypes and how they develop!

I would show the on-off switch in the circuit diagram also. Regarding SMD leds, you can find these cheaply in poundshop (or your equivalent) bike lights. You just have to use a sharp knife to cut though the chip connections and then wire straight to the LEDs.

Look forward to seeing your new improved mk2 version.
Diyler (author)  wobbler11 months ago
hey sorry for the late reply i´m not going to use sms leds alone. I will use led strips http://led-sa.co.za/wp-content/uploads/2011/05/20090917211852.jpg
You are right, the circuit diagram is overly complicated, but it shows how it is laid out in real life, which is helpful when trying to build this yourself
Hi, Good job you have here. I wonder whats the outcome of your smd led strips version? Hope to hear from you soon.
Diyler (author)  haemophilic11 months ago
hey sorry for the late reply, the led strip version is doing well, i hope in about a month it´s done.

right now i have the aluminum rings done and the led strips are glued to them, next step is soldering and searching for a compact 12 volt battery.
jim_20001 year ago
I love it! I always thought the animation the revolights plays at stops would get annoying to drivers and cyclists.
Dranem1 year ago
Sie können über "http://www.instructables.com/id/Magnetic-Induction-Bike-Lights/", ein licht mit kein batterie sehen. Achtung! der rote led sind mit 1.7-2 V versorgt.

You can seen on http://www.instructables.com/id/Magnetic-Induction-Bike-Lights/, a light without baterie. Be carefull! Red LED are fed with 1.7-2V.

En tout cas, beau travail......

P.S. :
Here the way i use on my bike (in french, but lots of pics):
http://cyclurba.fr/velo/78/frein-dynamo-accu-led-velo-eclairage-energie-freinage-recuperer.html
lio341 year ago
Hy !
Some news about your much simpler version with smd led strips ?
Diyler (author)  lio341 year ago
i have so much to do right now but i think it will be done in about a month or so the aluminium rings are ready right now so its just a matter of days or weeks i think i will do theme in the christmas holidays
Chefke1 year ago
Any idea when the detailed instructable will be ready? This is truly awesome!
Diyler (author)  Chefke1 year ago
i have so much to do right now but i think it will be done in about a month or so the aluminium rings are ready right now so its just a matter of days or weeks i think i will do theme in the christmas holidays
tryrey1 year ago
Could you post a close up how you install the stripes in to the wheel, please?
Diyler (author)  tryrey1 year ago
i just used zip ties to mount the aluminium rings to the bikespokes
Roshy101 year ago
I would Just like to point out you have not used any resistor so you LED's will not last as long as the normaly would
Diyler (author)  Roshy101 year ago
i don't need a resistor because i'm using 3,2 Volt LED's and two AA batteries each 1,5 Volt so there is no problem
hsnopek1 year ago
Hi,

I plan to make your project exactly the same as you made it only using 3,7V (4,2) 14500 AA Li-Ion Battery instead of 2 x AA (1,5V).

Is it okay to use 8mm Led's or do I have to make some modifications?

Thank you!
Diyler (author)  hsnopek1 year ago
just be shure you dont burn the led's when you use to much voltage most led's are rated at 3,2 volt

and you can use any 8mm led's to the size doesn't matter
Can you please explain the 3rd picture(The reed magnet switch connection part)?
And what should be the size of the reed switches!whenowl head
Diyler (author)  Athul Jayaram1 year ago
The Reed switches in this instructable are rated 230volt 6Ampere and are about 3cm long

next time i use this one http://www.pollin.de/shop/dt/ODU3OTE0OTk-/Haustechnik/Sicherheitstechnik/Alarmgeber/Reedkontakt_HAMLIN_59050_010.html
cause its plastic and not real glass

but you can use anyone that you like
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