Firefly is an open source personal transportation device designed to work on Indian roads.

Updates
27 Insights
Split of weight on a unicycle
posted 1 year, 7 months ago by Alex JV

The picture shows roughly the split of the weight of the unicycle. Shows that the motor is the most heaviest component. The most efficiently the motor can be designed the ...

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Battery casing should not be biting into the pack
posted 1 year, 8 months ago by Alex JV

The battery casing should not be biting into the battery pack. This can puncture the battery pack over time leading to potential fire.

ninebot, design choice, design flaw leave a comment |
The boards must be dust proof
posted 1 year, 8 months ago by Alex JV

This is the amount of dust that was found on the ninebot after using it at Jaaga farm for a month. The board should be designed to take this amount ...

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ninebot, design choice leave a comment |
Patents associated with Unicycle
posted 1 year, 8 months ago by Alex JV

Patent by Janick and Marc Simeray - http://www.google.com/patents/US20090266629
Patent by Solowheel - https://www.google.com/patents/US20110220427

research 3 comments |
Kicad resources
posted 1 year, 8 months ago by Anool Mahidharia

First place to look is the Github repo.
https://github.com/KiCad/kicad-library

Others
https://github.com/octopart/CPL-KiCad-Library
http://www.kicadcloud.com/
http://kicadlib.org/
http://kicad.rohrbacher.net ...

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kicad, resources leave a comment |
Banggood sells protective bumber stickers.
posted 1 year, 8 months ago by Alex JV

Might need a lot of this soon.

http://www.banggood.com/Airwheel-Electric-Unicycle-Bumper-Strip-Wheelbarrow-Protective-Strip-p-957046.html

[Feedback] Wheel feedback and requirements by Asutin Marhold
posted 1 year, 8 months ago by Alex JV

https://www.facebook.com/groups/ElectricUnicycle/766725430092089/?ref=notif¬if_t=group_comment_follow

[Design Requirement] Ability to easily replace battery
posted 1 year, 8 months ago by Nitesh Kadyan

When you run out of power, user should able to replace battery pack. This will allow us to have lesser battery pack inside the device. This will also reduce initial ...

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[Design requirement] Ability to remove wheel with ease
posted 1 year, 8 months ago by Nitesh Kadyan

In case of tire puncture, wheel should be easy to remove

Review on Gotway 18inch by John Chew
posted 1 year, 8 months ago by Alex JV

https://www.facebook.com/groups/ElectricUnicycle/763508877080411/

Gotway has an STM32F103c8t6 board on it with an MPU6050
posted 1 year, 9 months ago by Ankit Daftery

The STM32 board however has only one 16 bit PWM timer, so I wonder how the brushless motor is being controlled

Rockwheel dropping a meter
posted 1 year, 9 months ago by Alex JV

towards the end of the video the person drops the unit by more than a meter.
https://www.youtube.com/watch?v=sy0tMrEEE18

Pictures of Ninebot opened up
posted 1 year, 9 months ago by Alex JV

Kaifu Cheng dropped a ninebot and damaged it. That guy shared all the pictures of the same over here.
https://www.facebook.com/photo.php?fbid=10152795161882933&set=oa.755744061190226 ...

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[Research] Power consumed per km
posted 1 year, 9 months ago by Alex JV

According to Austin Marhold, the power he consumes per km is 14wh/km.

The number of Wh you need are determined by how far you go and how fast your ...

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wheel diameter related to lean distance
posted 1 year, 10 months ago by Alex JV

The image attached shows the relation between lean distance and radius of the wheel. It shows that the more the radius of the wheel, the more you will have to ...

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[Feature] Modularity
posted 1 year, 10 months ago by Alex JV

The entire unicycle is modular. Following are possible modules
Wheel dia - Swap wheel dias
Motor capacity
Battery capacity and chemistry
Seat post
Lights - headlight and rear brake light
Fancy lights ...

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[research] Page explaining how to chose a regular unicycle
posted 1 year, 10 months ago by Alex JV

Useful for choosing our wheel diameter - http://www.municycle.com.au/selecting_a_unicycle_page.html

Testing insights
posted 1 year, 10 months ago by Numaan Ashraf

Test

[research] Shell is made of polycarbonate
posted 1 year, 10 months ago by Alex JV

The shell is made of polycarbonate - This is the one that gives it its ruggedness.

[Prior Art][Review] Gotway 14" vs Solowheel
posted 1 year, 10 months ago by Alex JV

Really nice review and comparison on solowheel and gotway 14"

http://forum.electricunicycle.org/topic/43-review-of-the-gotway-14-mcm-from-the-perspective-of-a-solowheel-owner/

Gotway fan base
posted 1 year, 10 months ago by Alex JV

Owner/Fan/Aftermarket base – There is a large aftermarket and technically-savvy community that self-supports the GW14. This is in part because of the ease of user access to the Gotway ...

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[Prior Art] Getting stuff from China
posted 1 year, 10 months ago by Alex JV

We have a buyer in India who is primarily handling the purchases in China. He also handles shipping to India. Also AliExpress is also a pretty easy place to buy ...

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Existing products in this space
posted 1 year, 11 months ago by Alex JV

http://www.airebike.com/
SBUV3 - http://focusdesigns.com/
Solowheel - http://inventist.com/index.php?option=com_content&view=category&id=8&Itemid=116
Airwheel - http://www.airwheel.net/x3.html
Mobbo ...

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Flying nimbus - self balancing device -
posted 1 year, 11 months ago by Alex JV

http://transistor-man.com/flying_nimbus.html#hubmotor_wheel

Submitted by Anool

some more unicycle links
posted 1 year, 11 months ago by Anool Mahidharia

http://hackaday.com/2014/09/01/thp-semifinalist-the-medicycle/

http://www.instructables.com/id/Raleigh-Chopper-inspired-self-balancing-scooter/?ALLSTEPS

The MediCycle seems very relevant to conditions in India. Every day during my commute in Mumbai ...

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An earlier open source eunicycle
posted 1 year, 11 months ago by Alex JV

The link is not active. Found the link on a web archive - http://tlb.org/eunicycle.html.

Submitted by Karthik V

[Todo] Study of wheel dimensions of popular 2 wheelers/cycles
posted 1 year, 11 months ago by Alex JV

Quickly collect all the data on wheel dimensions of popular cars, scooters, and bikes in India. We know these wheels work on Indian roads.

This should give us some sense ...

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2 Files
shopping list - EU.xlsx
uploaded 1 year, 10 months ago by Alex JV Download File
List of items to be bought for prototyping
Self-Balancing-Electric-Unicycle-Connection-Instructions.pdf
uploaded 1 year, 8 months ago by Alex JV Download File
Instructions on how to assemble and calibrate the DIY kit controller board
2 Documentations
What is special about Firefly Unicycle
added 1 year, 10 months ago by Alex JV
Firefly unicycle we focus on couple of things
- Modularity
The entire unicycle will be modular so that you can mix and match configuration to build a unicycle that fits your need. Need to use it for short uses choose a small battery pack. Want to use it for longer distances, choose a shorter battery pack.

- Ruggedness
It should be rugged. We should be able to take more than average beating.  

- Ease of hackablity
It should be easy to hack/modify the unicycle. Thats the key differentiator. 


Important channels of communication
added 1 year, 8 months ago by Alex JV

We use couple of channels for communication. We use

  • Twitter for all social updates - @fireflyunicycle
  • Newsletter* for updates via mail - http://eepurl.com/9xiQz
  • Slack** - to engage with the community, to enable a discussion
  • Blog - blog.makeystreet.com

* See our newsletters archive here - http://us4.campaign-archive1.com/home/?u=80ac318a380bca291063d6e4d&id=e173b4cac6 

** To join the slack community, we need your Name and Email Id to send you an invite. Please fill up this form and we will send you an invite https://fireflyunicycle.typeform.com/to/DeScbi