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5 years, 10 months ago.
Suggestion for an mbed board
Hi all,
I am in search of an mbed compatible development board that has Ethernet support and a lot of independent PWMs for driving a big number of different motors. Of course more boards can be added if the number of PWMs are not enough for the final number of motors, so currently I am searching for the best combination of Ethernet plus as much independent PWMs as possible . The final board will be custom made, so a non-BGA microcontroller would be nice too. Any suggestions would be really appreciated! Thank you!
1 Answer
5 years, 10 months ago.
Hello Georgios,
I would suggest the STM32F746ZGT6 MCU like the one on this NUCLEO-F746ZG https://os.mbed.com/platforms/ST-Nucleo-F746ZG/. It does not have any PWM channel but it does have 4 I2C channels that you can interface with a I2C to PWM controller like this PCA9685 https://www.adafruit.com/product/815, which in theory can support up to 982 PWM motors using just two pins.
If you wanted a more compute power, then you can look into using an ARM® Cortex™-A9 single-chip microcontroller like this board here https://os.mbed.com/platforms/VK-RZA1H/. This one have a motor control PWM timer for a more precise speed control.
Please let me know if you have any questions!
- Peter, team Mbed
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