Description

The Servo Shield gives your OpenMV Cam the ability to control up to 8 servos in parallel. It features the PCA9685 Servo Controller which can also do general-purpose PWM.

OpenMV舵机扩展板

We’ve got a PCA9685.py script for controlling the chip for general-purpose PWM and a Servo.py script for controlling servos using the PCA9685 general-purpose PWM script.

The Servo Shield is great for applications where you need to use your OpenMV Cam to control things in the real world. For example, it works great for turning an RC car into a self-driving car using your OpenMV Cam for vision and the servo shield to control the throttle and steering motors. Typically ESCs supply voltage out on their servo pin headers instead of requiring voltage. So, if you hook the servo shield up to your OpenMV Cam and an ESC up to your servo shield everything will be powered. If you do not have ESC, you can also use the OpenMV sensor expansion board to plug in the power supply.

OpenMV 传感器扩展板

The OpenMV servo shield can be stacked in two simultaneous use. Connect the solder bridge on the back and you can change the I2C address.

Pinout

Specifications

Schematic

Schematic(pdf): servo.pdf
eagle File: (servo.sch servo.brd)

Datasheet

pca9685(.pdf)