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Product description: MotoPi - 16-channel PWM servo controller for Raspberry Pi - Joy-IT RB-Moto3
The Joy-IT MotoPi RB-Moto3 is an advanced servo controller designed for Raspberry Pi single-board computers . The board allows simultaneous operation of up to 16 5V servos using precise PWM signals generated by a dedicated crystal oscillator. This ensures smooth servo movement and significantly more accurate positioning. The module also features an analog-to-digital converter , allowing connection of analog components such as joysticks or potentiometers. A built-in capacitor stabilizes the voltage during sudden load changes and reduces the risk of servo jerking. Additional power inputs allow for adequate power delivery even for more complex robotic designs.

MotoPi - 16-channel PWM servo controller for Raspberry Pi - Joy-IT RB-Moto3.

The MotoPi shield is designed to perfectly fit the GPIO connectors of the Raspberry Pi minicomputer.
Main features of the MotoPi module
- 16 PWM Channel Support : Control up to 16 5V servos simultaneously
- Precision clock generator : more accurate PWM signals and smoother servo operation
- Built-in ADC : supports joysticks and analog sensors
- Two power inputs : 5.5/2.1mm DC jack and screw connector
- Voltage stabilization : capacitor limits voltage drops under heavy load
- Raspberry Pi compatibility : direct mounting to Raspberry Pi GPIO
- I2C and SPI interface support : communication with control systems and ADC converter
- Possibility to connect an additional capacitor : increased operational stability at high current consumption
Pinouts and compatibility of the MotoPi shield
The shield is equipped with 16 servo channels with GND, V+, and PWM pins. Additionally, the module offers four analog inputs (A0-A3), two digital inputs using GPIO22 and GPIO27, and an I2C bus connector . This solution allows for simultaneous control of servos and support for additional input elements such as joysticks, buttons, and potentiometers. The MotoPi is compatible with Raspberry Pi A+, B+, 2B, 3B, 3B+, and 4. The module requires activation of the I2C and SPI interfaces in the Raspberry Pi OS. The manufacturer provides a dedicated library based on the Adafruit_PCA9685, specifically adapted for use with the MotoPi board.

The module is a useful accessory for the Joy-IT Robot02 robot arm.
Controller technical specifications
- Number of PWM channels: 16
- Supported servos: 5V
- Communication interfaces: I2C, SPI
- Analog inputs: 4 x A0-A3
- Digital inputs: 2 x GPIO22 and GPIO27
- Clock generator: built-in crystal oscillator
- Analog-to-digital converter: yes
- Power Input 1: 5.5/2.1mm DC Jack
- Input 1 Voltage Range: 4.8V to 6V
- Maximum input current 1: 5 A
- Power input 2: screw connector
- Input 2 Voltage Range: 4.8V to 6V
- Maximum input current 2: 6 A
- Maximum total current: 11 A
- Compatibility: Raspberry Pi A+, B+, 2B, 3B, 3B+ and 4
- Dimensions: 65 x 56 x 20 mm
- Weight: 30 g
Kit contents
- 1x MotoPi RB-Moto3 Cover
Useful links |
