Please note: The forum is now closed to new submissions. All the existing forum topics and posts are still available, however new topics cannot be created. If you need Sinclair C5 advice please use the C5 Owners Facebook Group.

Dan posted:

There seems to be a lot of interest in the xpod/c5duino board recently so I thought it would be easier to answer any questions about the board here.  The main reference to building the board can be found here.

Here are some important points regarding the board that will help you understand what it can and cannot do:

12V Configuration:
  • In 12V mode the board can control a 12V relay, which on the C5, allows the board to turn the motor on/off based on the state of the handlebar.
  • Sensors connected to the board can monitor/display battery voltage, motor current, motor temperature, speed etc
  • As the board can control the motor the pedelec mode can be enabled by adding an additional reed switch to the pedal crank.

24V Configuration
  • In 24V mode the board is still powered from a 12V source, with an additional 24V feed providing accurate voltage measurements.
  • In 24V mode it cannot control a motor and is merely used to monitor the status of the motor (e.g. temperature, current, battery voltage, speed)
  • To control the motor you must use a suitable 24V motor controller in addition to the board. As has been explained elsewhere I have only ever used a UNI-8 controller on a C5 so if you choose to use a different controller then it is up to you to work out how to wire it up
  • As the main requirement of a pedalec is for the motor to be disabled when the speed exceeds a predefined maximum value, in 24V configuration the pedelec mode will not work (as the board has no control over the motor).
I'll continue adding to the above as necessary, in the meantime if there are any questions post them below and I'll do my best to answer them.

Thanks!

Dan
posted on: 30/04/2014 19:21:50

dave posted:

Time for eBay guys
posted on: 01/05/2014 15:16:49

Dan posted:

[quote=dave;3148]Time for eBay guys [/quote]

Hi Dave,

Yep you're right, I may sell the 24V C5 touch now that I'm getting the dual motor one. I don't realy use it anyway
posted on: 01/05/2014 17:05:09

dave posted:

What
posted on: 01/05/2014 17:49:42

dave posted:

That's got disc brakes and alloy cog ?
posted on: 01/05/2014 17:56:27

dave posted:

You could always try and sell it to area he was thinking of taking it lol
posted on: 01/05/2014 17:59:33

Dan posted:

[quote=dave;3152]That's got disc brakes and alloy cog ? [/quote]

No just the normal brakes and regular gearbox.  The brakes are pretty good on it anyway
posted on: 01/05/2014 17:59:55

Area51 posted:

lol Dave i would like it but i dont have the room for it
posted on: 01/05/2014 18:13:48

dave posted:

You can find room area I av lol
posted on: 01/05/2014 18:19:07

tvdnagel posted:

Hi! I am interested in building my own 12v X-Pod or c5duino. Is there a place to buy the pre-populated board?
posted on: 12/08/2014 20:03:40

dave posted:

Nope sorry
posted on: 13/08/2014 09:08:10

dave posted:

I've got one but in a c5 and 24v with disc brakes front and rear
posted on: 13/08/2014 09:51:37

BrianC5 posted:

Hello Dan, is it possible to have a 36v or 48v conversion that would be conmpatible with the C5duino/Xpod conversion?
posted on: 03/09/2015 04:32:19

dave posted:

Mines 24v but it's 12 v feed
posted on: 03/09/2015 16:29:16

BrianC5 posted:

Sorry I meant Dave, damn auto correct. So that would mean it would be possible to add batteries to achive 36v or 48v, but you have a standard 12v feed to run electronics like the display, sensors, etc. I was potentially thinking about adding 4 batteries total for 48 volt to maximize range and speed within top limits of the max speed of 56kph on the roads over here in Texas. Would the C5duino/xpod conversion be compatible with a setup like this?
posted on: 03/09/2015 16:40:31

dave posted:

Maybe Dan could change the software but there are no more boards I'm afraid ? I was selling mind on the c5 that Gos 30 mph
posted on: 03/09/2015 18:45:58

BrianC5 posted:

It should be possible to still build one based off of Dan's instructions, right? It would be nice to just get one from Dan but I know he can't spend all his time just building boards for all the potential owners. I have access to an Arduino/3d printer lab at the university down the road and they have people on staff that are helpful with instructions. I was thinking 48 volts would be max I would want to go, just wondering if Dan's setup was able to account for/control this much voltage.
posted on: 03/09/2015 18:56:52

wildfireone posted:

I am currently building this from the instructions as well as intuition, unfortunately this is just on veroboard at the moment, however if Dan didn't mind I can share the circuit once complete. I've been making a few changes to the code and circuit as needed, but can soon draw up the original. Fran
posted on: 04/09/2015 21:15:25

BrianC5 posted:

Thanks, if I can ever get my hands on a C5, I'll share any and all modifications that I come up with. I've got a list going. I favor trying to keep things original where possible but also would like to update things where it's practical.
posted on: 04/09/2015 21:20:02

Dan posted:

Hi Fran, Thats great, feel free to make your own/share it, its been a couple of years since the xpod and I've little appetite to revisit it.
posted on: 05/09/2015 10:43:09

dave posted:

That long Dan
posted on: 06/09/2015 17:25:38