Wireless Dual DC Motor Control

Project Info
Author: Chris
Difficulty: Medium
Time Invested: 4 Hours

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           Standard DC motor control can be tricky enough if you are new to electronics, but how about wireless dual dc motor control? A while ago I introduced you to a simple dual dc motor control design that used the SN754410NE IC to control some off-the-shelf 3v or 6v motors. Let's take a look beyond just motor control and see if we can't make that same system wirelessly controlled.
           This article will explain how to build a dual DC motor control system, combined with a wireless receiver and transmitter which will tell the motors at what speed they should move forward, or backward. We will use standard and widely available parts so that anyone can follow along.

Wireless Dual DC Motor Control - Demonstration

Wireless Dual DC Motor Control - Setup

Purpose & Overview of this project
           The purpose of this project is to build a system that can independently and wirelessly control two DC motors. To do this, the system will need 4 core components: an input system for the transmitter, a wireless transmitter, a wireless receiver, and a motor controller connected to the receiver.
           The input system to the transmitter will be the output from two trimpots. The analog voltage they output will be translated by the microcontroller's ADC to a value from 0 to 1023. This value will be scaled to 16 unique values for each motor and then transmitted through a XBee module. The receiver will receive these unique values from a XBee module and tell each motor independently which way to turn and how fast by sending a PWM signal to the motor controller.