PCA9685 Servo Driver Shield for M5Stack
Change I2C address to 0x72
M5Stack_Plotclock
https://github.com/tomorrow56/M5Stack_Plotclock
https://thousandiy.wordpress.com/2018/10/20/servo-driver-shield-for-m5stack/
PCA9685 Servo Driver Shield for M5Stack
Change I2C address to 0x72
M5Stack_Plotclock
https://github.com/tomorrow56/M5Stack_Plotclock
https://thousandiy.wordpress.com/2018/10/20/servo-driver-shield-for-m5stack/