<![CDATA[M5 Dial as servo controller with i2c and PCA9685]]>

<![CDATA[M5 Dial as servo controller with i2c and PCA9685]]>Hello,
I use a PCA9685 LED / servo controller with i2c on a rotary knob M5 Dial.
A level shifter is mandatory because the S3 Stamp is not tolerant to the 5V from the PCA.
There are two modes:
PWM with values from 0 to 100 -> 0 - 100% pulse width (50 Hz)
Servo controller for standard servos with values from 101 to 200 -> 90 degrees servo rotation with adjustable zero and range

enjoy

]]>https://community.m5stack.com/topic/6085/m5-dial-as-servo-controller-with-i2c-and-pca9685RSS for NodeTue, 17 Mar 2026 09:45:40 GMTMon, 12 Feb 2024 20:38:16 GMT60<![CDATA[Reply to M5 Dial as servo controller with i2c and PCA9685 on Tue, 13 Feb 2024 11:30:05 GMT]]>Use the dedicated servo unit and you don’t have any level shifting problems to worry about

]]>https://community.m5stack.com/post/23785https://community.m5stack.com/post/23785Tue, 13 Feb 2024 11:30:05 GMT