DC Motor Control Using Joystick

This is a compact, low-profile, and high-performance DC motor driver that provides easy control of a DC motor using a joystick. This small-size board can drive small to medium-sized brushed DC motors with up to 2.5A continuous and 6A peak currents. It is an Arduino-compatible project that helps users develop their own code and drive DC brushed motor as per application requirements. The Arduino-compatible hardware consists of an ATMEGA328 microcontroller and IFX9201 H-Bridge chip.

Arduino Code

Arduino example code is available and the user will be able to drive a DC brushed motor up to 2.5A using a joystick. Follow the link below to learn more about programming the new ATMEGA328 chip using Arduino IDE.

• https://docs.arduino.cc/built-in-examples/arduino-isp/ArduinoToBreadboard

Applications

• Camera Pan Tilt Head
• Linear/Rotary Actuator
• Camera Slider
• Robotics
• Motorized Curtains
• Lifting Equipment
• Medical equipment/Furniture
• Camera Focus/Zoom Motor

Features

• Power Supply for the Load 8V to 30V DC (Max 36V)
• Motor Lead up to 2.5A Peak 6Amps
• Over Current Shutdown Threshold 8Amps
• Logic Supply 5.0 V
• No Heatsink Required
• PWM Frequency 975Hz
• On Board Power LED
• Screw Terminals for Motor and Power Supply Connections
• PCB Dimensions 57.47 x 37.15 mm

Various other possible applications with this hardware

• Motor Speed Control Using Potentiometer
• Motor Control with Limit Switch, a Limit switch can be connected to D7 and D8 Pin of Connector CN5
• Motor Velocity Control using Encoder, the encoder can be connected to D7/D8 of CN5

Selecting a DC motor

The project can drive small DC motors with peak currents of up to 6 A. The achievable continuous drive current is lower and depends on supply voltage, switching frequency, and cooling conditions. Realistic continuous drive currents for this project are in the range of 1 A to 2.5 A. Many motors for toys, RC models, or robotics fall in this range.

Arduino Pin

• Arduino D5 = PWM Pin of IFX9201 H-Bridge
• Arduino D6 = Direction Pin of IFX9201 H-Bridge
• Arduino D4 = Disable Pin of IFX9201 H-Bridge (High = Disable, Low = Enable)
• Arduino D5 = PWM IFX9201 H-Bridge

The project is built using an IFX9201 H-Bridge chip, more info about similar can be found here

• https://www.electronics-lab.com/project/6a-h-bridge-with-pwm-dir-input-and-spi-interface/

Protection and Diagnostics – Both output stages of the IFX9201SG are equipped with fault diagnostic functions:

• Short-to-supply voltage (SCVS)
• Short to ground (SCG)
• Open load (OL)
• Over-temperature (OT)

Connections and Other Details

• CN1: Optional No Use
• CN2: Power Supply for Motor Pin 1 = VDD 8 to 30V DC, Pin 2 = GND
• CN3: Motor Connections, Pin 1 = Motor, Pin 2 = Motor
• CN4: Arduino Programming/Bootloader Connector, Pin 1 = RX, Pin 2 = TX, Pin 3 = Reset, Pin 4 GND, Pin 5 = VCC, Pin 6 = D11, Pin 7 = D12, Pin 8 = 13
• CN4: Optional Limit Switch, Pin 1 = VCC, Pin 2 = Arduino D7, Pin 3 = Arduino D8, Pin 4 = GND
• U2: Joystick, Pin 1 VCC, Pin 2 = Analog A1, Pin 3 = GND
• D1: Power LED for Motor Supply

Schematic

Parts List

Connections

Gerber View

Photos

Video

IFX9201 Datasheet

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