Blog Archives

Ebikes – DBMS issues with counterfeit parts

The DBMS worked fine for 50 or 60 km, but the behaviour of the various components – batteries, motor and controller and DBMS started to get erratic, and it started to get difficult to tell what was going wrong. I

Posted in Arduino, Computer Stuff, Dual Battery Management System, Electric Bikes, Other Technology, Yuba Mundo eV4

Ebikes – dual battery managment system more riding.

Two more days of testing, a week apart, building on the numbers from day one. Total kilometres over the three days 66.4  and total time on road 3h22m, giving an average of speed of 20kph or thereabouts. The bike was

Posted in Arduino, Dual Battery Management System, Electric Bikes, Programming, Yuba Mundo eV4

Ebikes – dual battery management system – first rides

I have waterproofed both the DBMS and the power meter, so am feeling a bit happier about going out for a ride or two. I did my first ride just after I finished the basic unit, but it was all

Posted in Arduino, Dual Battery Management System, Electric Bikes, Programming, Yuba Mundo eV4

Ebikes – dual battery management system – build and install

Build After a few months of designing, prototyping and waiting for all the components to arrive, I finally had enough to build a working, install-able prototype of my Dual Battery Management system. It is still a prototype, and like all

Posted in Arduino, Computer Stuff, Dual Battery Management System, Electric Bikes, Programming, Yuba Mundo eV4

EBikes – Dual Battery Management System

The only commercial developer of dual battery electric bikes I have seen to date is Bosch, who do an optional Dual Battery kit, which one or two manufacturers have taken up. Being proprietary technology, there is not a lot out

Posted in Arduino, Dual Battery Management System, Electric Bikes, Programming, Yuba Mundo eV4

Arduino – multi-cell voltmeter

Right at the start of the saga which is my multi-cell voltmeter/potential BMS, I considered and rejected the simplest way of doing this, namely using voltage dividers to drop the voltage from the cells down to within the range of

Posted in Arduino, Computer Stuff, Electric Bikes, Programming

Arduino – multi cell battery voltmeter progress

As reported in the last post on this topic, I soldered headers onto the two 16 channel MUX and started testing. Since then I have spent a bit more time trying to get it all to work. The major change

Posted in Arduino, Computer Stuff, Electric Bikes

Arduino – voltage drop

I started working again on the multicell voltmeter, I soldered some header pins onto the two 16 channel multiplexers, and plugged them into a breadboard with arduino. Some basic testing proved that my optimism was completely unfounded. So using best

Posted in Arduino, Computer Stuff, Electric Bikes

Multi Cell Voltmeter

The big order of Arduino related products has started to arrive, the key components, the Arduino mega 2560 clone and the TFT LCD screen arrived two days ago, along with some of the voltage sensors, and most of the jumper

Posted in Arduino, Computer Stuff, Electric Bikes, Programming

New Project – Electric Bikes, Arduino and Programming

Exciting times – a new project, bringing together Electric Bikes, Computers and Programming! During my troubles with batteries (which are pretty much sorted now) I realised I needed a way of looking at the voltage of all the 12 cells,

Posted in Arduino, Computer Stuff, Electric Bikes, Programming