Where is the Analog Pin On Mbot


#1

Im Trying to make a robot arm with the board so im using the pca9685 to power 4 servos at the same time but i need the wiring and i need to know where the analog pin is


#2

you can find the schematic here:
https://www.makeblock.com/project/mcore

also info on analog pin here
https://forum.makeblock.com/t/mcore-datasheet/3806

I have used the Me RJ25 adapter on the mbot for servos
http://learn.makeblock.com/en/me-rj25-adapter/


#3

the PCA9685 generates it’s own PWM for the control signals of the servos and it requires i2C comunication from the mbot not analog.

You won’t need to use a PCA9685 if you don’t want to as each port of the mbot is capable of driving 2 servos by either using analog write (hardware PWM) or by using the ardunio Servo() library that uses just 1 timer and an interrupt to create software PWM for the servos.