Recent content by webbs

In this setup you will need to calibrate it via the Arduino as it passes the info onto the Solo the same way the battery cells were calibrated. Ideally you would have a multimeter in series with the battery and try and draw around 10A, max for most multimeters. I'm not sure what the Solo will...

That is what this project is. It was started a couple of years ago as a BMS replacement so you can use any battery. It was designed as a DIY option and is open source. The code has a setup feature where you can calibrate for voltage and current. As it is open source you can modify the code if...

His response via eBay was "Hi ship to USA and Canada only. Been frauded 2 times by Aussies. Will not happen again, " Looks like this won't happen unless i get myself a US shipping address.....

Looks like he has had issues shipping the plugs to Oz before so not shipping outside of the US or Canada.

I looked at many different options for this but you would still need something to interface with the chip to the Solo as i couldn't find anything with SMBUS coms built in. This chip looks good in being able to carry out all the measurements and then could be integrated with and Arduino or...

Hi spieky, do you have a link for purchasing the plugs? I was going to use a salvaged one but as you only need 1 for this project it might be nice to have a new one.

Great work Spieky! You have managed to get than nice and compact. Higher resistor values are fine, it just the ratio you need to keep similar to give the most range on the 0-5v decoding. Is that a new Solo plug or one you salvaged from a dead battery?

Awesome. Are you able to put up come photos of what you have done? Let me know how you find the Arduino code and if you had any issues with it.

Hi Spieky, The button is controlled internally by the BMS and it will disable the output from the actual battery cells to the external terminals which is the same as unplugging the battery.

Hi Professorpip, I knew the 10A came in somewhere, but it was per cell rather than the pack. Hopefully there will be more coming so it will be easy to get them off the shelf... Here is a new version of the code with a serial interface for setup and calibration. It takes up less memory so...

I am about to test out my new version of the code with the serial option to calibrate the values and set pack capacity so hopefully should be able to post the code in the next day or so. I have come across these from Banggood when i was looking at the ZOHD dart... ZOHD LIONPACK 4S2P 18650...

The I2C connector is for the I2C bus. This is how the Solo talks to the battery and gets the cell voltages current draw, serial number, remaining capacity etc.

Thanks just_bruce, I have been looking for an interface and this one works but is large size-wise. If anyone else has a serial PC interface that will work with arduino let me know and i can have a look. I have just done a test with a USB to serial adapter and found i can connect with an...

There is also the option of Generic Battery + Arduino = Happy Solo which will interface between the Solo and and any battery but currently requires you to build your own circuit and program an arduino if this is your type of thing.....

I have finally managed to get this code to compile.... It is using SerialUI. There is an APP DeviceDruid from the windows store that will interact with this (i have had limited success). I use the Arduino IDE's serial monitor (57600 baud). In theory you could use a mobile with a serial...