xek
1 mW
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 my own e-bike on a custom built frame, middrive 8Kw motor and pulley-belt transmission and I need a horn/lights controller — why not make one =)
This is a work-in-process right now.
Features:
[list type=]
[*]9x digital inputs
[*]an analog input for KTY83/84 temp sensor, other sensors would probably work too
[*]an analog input for brake hall sensor
[*]CAN-bus
[*]3x optoisolated outputs which commutate 12-130V, all three have 1.6A fuses
[*]3x 12V 1.6А outputs with 1.6A PTC fuses
[*]1x 12V 4А output with stabilized current, this can drive a fan up to 12V 4A (4А PTC fuse)
[*]2x 12V 4А outputs (4А PTC fuses)
[*]All outputs can be hardware-PWM-contolled
[*]Based on a Blue Pill stm32 board which should be bought separately from Aliexpress or eBay for ~2$
[*]Open firmware which can be updated via USB.
[/list]
PCB copper limits total 12V bus current to 8 Amperes.
And, this thing requires an external 12V power source.
https://github.com/ryba-xek/Svetozar
Uploaded first PCB version.
Fits Gainta G0471 or Gainta G0471F aluminum enclosures.
I'll post updates with the build process. And pardon my English.
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 my own e-bike on a custom built frame, middrive 8Kw motor and pulley-belt transmission and I need a horn/lights controller — why not make one =)
This is a work-in-process right now.
Features:
[list type=]
[*]9x digital inputs
[*]an analog input for KTY83/84 temp sensor, other sensors would probably work too
[*]an analog input for brake hall sensor
[*]CAN-bus
[*]3x optoisolated outputs which commutate 12-130V, all three have 1.6A fuses
[*]3x 12V 1.6А outputs with 1.6A PTC fuses
[*]1x 12V 4А output with stabilized current, this can drive a fan up to 12V 4A (4А PTC fuse)
[*]2x 12V 4А outputs (4А PTC fuses)
[*]All outputs can be hardware-PWM-contolled
[*]Based on a Blue Pill stm32 board which should be bought separately from Aliexpress or eBay for ~2$
[*]Open firmware which can be updated via USB.
[/list]
PCB copper limits total 12V bus current to 8 Amperes.
And, this thing requires an external 12V power source.
https://github.com/ryba-xek/Svetozar
Uploaded first PCB version.
Fits Gainta G0471 or Gainta G0471F aluminum enclosures.
I'll post updates with the build process. And pardon my English.