How to Control Drone Quadcopter Brushless DC Motor (3 Wires Type) by Using HW30A Motor Speed Controller and Arduino UNO

Description:
The HW30A Motor Speed Controller can be used with 4-10 NiMH/NiCd or 2-3 cell LiPo batteries. The BEC is functional with up to 3 LiPo cells. It can be used to control speed of Brushless DC motor (3 wires) with maximum up to 12Vdc.

Specification:

• Max Continuos Current : 30A on 3 Cells
• Max Input Voltage: 12V
• BEC : 2A
• Input Voltage : 2-3 Lithium Polymer or 4-10 NiCd/NiMH
• Resistance: 0.0050 ohm
• FETs: 12 Lithium
• Cut OFF Voltage: 3.0V / cell
• Size: 45 x 24 x 9 mm
• Protection: 110 CPWM: 8KHzMax Rotation Speed 20,000 RPM for 14 pole motor

In this tutorial, (please refer the image above) the components needed are as follow:

1. Battery 2-3 cell LiPo
2. Arduino UNO
3. Brushless DC Motor
4. Male to Male Jumper cable
5. BreadBoard
6. HW30A Brushless Motor Speed Controller
7. USB 2.0 cable type A/B
8. Variable Resistor 10k ohm
9. Crocodile Clip

Refer the diagram above for your reference.

• Connect the battery 2-3 LiPo to HW30A Motor Speed Controller (ESC).
• Refer the diagram, connect together the HW30A Motor Speed Controller (ESC) with Arduino UNO
• Last HW30A pin output connect to Brushless DC motor

Download this sample source code and open it in your Arduino IDE

After open the code in Arduino IDE, go to the [Tools] --> [Boards Manager] --> select [Arduino/Genuino UNO] as we using Arduino UNO in this tutorial.

Then connecting the Arduino UNO to PC, after that select the correct port (go to [Tools] --> [Port] --> Select correct port for Arduino UNO).

Next, compile and upload the code into your Arduino UNO.