I've recently purchased the PCBs for an open-source motor driver by Benjamin Vedder. It is an attractive orange/yellow colour and smells of sawdust on a rainy day.
It should be good for electric skateboards, bikes, surfboards, or huuuuge quadcopters (if you buy four).
Here is an incomplete list of some of its features:
- Fully open source.
- STM32F4 microcontroller.
- 5V 1A output for external electronics from the integrated buck converter.
- Voltage: 8V – 60V (Safe for 3S to 12S LiPo).
- Current: Up to 240A for a couple of seconds or about 50A continuous.
- Sensored and sensorless FOC wich auto-detection of all motor parameters.
- Firmware based on ChibiOS/RT.
- Regenerative braking.
- DC motors are also supported.
- Sensored or sensorless operation.
- A GUI with lots of configuration parameters
- Interface to control the motor: PPM signal (RC servo), analog, UART, I2C, USB or CAN-bus.
- Wireless wii nunchuk (Nyko Kama) control through the I2C port. This is convenient for electric skateboards.
This is just the PCB, however. They are $5 each, and prefer to sell them in groups of two. I have 6 left.
For the components, @bruce has kindly stepped up and is ordering the sets. Please join #vesc in Slack to get in on that order, expected cost is around $20. This will require some pretty fine SMD work, but we have a ton of experts at that now.