I have my servo shield assembled and ready for testing, so I of course wanted to try it with the PCA9685 library from GitHub - adafruit/micropython-adafruit-pca9685: Micropython driver for 16-channel, 12-bit PWM chip the pca9685
Unfortunately, I can’t figure out how to properly use machine.I2C on the OpenMV board. I tried this (with nothing connected):
>>> from machine import I2C, Pin
>>> i2c = I2C(sda=Pin('PB5'), scl=Pin('PB4'))
>>> i2c.scan()
[8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119]
And this:
>>> i2c = I2C(-1, sda=Pin('PB5'), scl=Pin('PB4'))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: extra keyword arguments given
Any hints? I can’t use pyb.I2C, because that library is written for the new “machine” API.