What are you building
your layout with?
Choose the board you have or plan to use. We will then show you the matching wiring diagrams.
- 01Choose a system
- 02Choose a diagram
- 03Connect the devices
Arduino Uno
Have an Uno board? See how to connect servos, LEDs and additional PCA9685 modules.
I2C pins: A4 / A5Choose a systemArduino Mega
Using a Mega 2560? Choose diagrams with the pin labels for this board.
I2C pins: 20 / 21Choose a systemRaspberry Pi
Connect modules directly to the Raspberry Pi GPIO. See the I2C pins and separate servo power supply.
I2C: GPIO2 / GPIO3 · 3.3 V logicChoose a systemAfter choosing a system, you will go to diagrams with a drawing, wiring table and list of required components.