Recent content by xek

The BOM was updated recently, and is valid for any country. Maybe you will have to search for some parts on Mouser or Digikey, but nothing special. I think you can buy all the parts from Mouser, that won't be a problem. I'm sorry, I do not plan to sell anything (it takes a lot of time to solder...

Okay, I've redesigned the board, it now has electronic short circuit protection. I've ordered a new batch of PCBs, they arrived yesterday. Firmware is not ready yet. I've uploaded new board design and BOM to https://github.com/ryba-xek/Svetozar.

This thing has microcontroller, you can program any complex blinking algorithm you want. Every output has PWM, so you can even make fade-in & fade-out. I also use just ordinary LED turn signals without any logic in them. They would work okay. NOTE: boards v 1.1 have an error in IRLML9301TRPBF...

Ok, I have my board now, will solder it in a day or two.

Added bom.pdf to the repo. Total cost is around 23$ for the parts and ~3,2$ for the pcb.

+1. I'm studying motor control literature right now. Motor controllers are much more complex than any stuff I made. 100V headlight it's sealed and I don't want to disassemble it, but I've seen photos of it disassembled — it has a step-down converter. There is no problem with 12V headlights...

Okay, you are right, good handlebar switches are capable of high currents. I'm using cheap chinese switches which are not so good. Today I've improved the PCB a little and ordered my first batch at JLCPCB, hooray! Firmware is not ready yet.

I know about this solution, thanks. I bought some good motorcycle headlights and it supports 8-100V, that's the reason I need to switch 100V. Someone may consider this potentially dangerous. In my case I can PWM any channel, and one 12V channel outputs controlled stabilized current for a fan...

12 V handlebar switches can't stand 4 A of load. Plus I personally need to control a fan based on motor temperature.

Please show me some more controllers. Lebowski is not an open controller. There are many things that matter which are controlled by firmware. I find it hard to use powerful 12V headlights, as you'll have to buy rare and expensive DC-DC. So I have 24s lithum battery and 8-100V headlights and...

Please correct me if I had chosen wrong forum thread. I really want to develop e-biking into something with a shared community knowledge, like 3d-printing or quadcopters. What a pity the whole world has no more than two open-source motor controllers, both are too feeble for e-bikes. I'm making...