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Motor Control Booster Pack for MSP430 Launchpad (MSP-EXP430G2)

msp430 booster pack for building a robot and msp430 motorcontrol booster pack

Robot Shield V1.0 is a Booster pack for MSP430 Launchpad (MSP-EXP430G2) which can be used either as a

   MSP430 Motor Control Booster Pack for Launchpad ,
   MSP430 RS485 Communication Booster Pack 
   or a MSP430 Robot Booster Pack for Launchpad. 

 Rs 560/-      Buy MSP430 Booster Pack online from ebay 

 Free Shipping (all over India)

 User Manual   Circuit   Features   Tutorials

RS485 Communication using MAX485 and MSP430 Launchpad

In the previous tutorial we discussed how to implement a serial connection between MSP430 launchpad (MSP430G2553 ) and a PC .Serial(TTL) or RS232 protocol is fine if you are planning to communicate over short distances of a few meters,when you increase the range to a few 100 meters RS232 protocol will become inadequate.For long distance wired communication you have to use a different protocol called RS485 which can communicate over a kilometer.In this tutorial we will interface a MSP430 launchpad containing MSP430G2553 with a RS485 decoder chip from Maxim (MAX 485).

MSP430G2553 interfaced with MAX485 circuit diagram

Remotely Controlling DC motors through RS485 Protocol using MSP430 Launchpad Booster Pack

ors being controlled by MSP430 from PC through RS485 link

In this tutorial we are going to control two DC brushed motors remotely using RS485 protocol.The Motors are connected to the PC through a twisted pair RS485 cable and the software running on the PC controls the two motors.

The Software is written in both C sharp (C#) and Python so that they can be run on multiple systems like Windows,Linux etc.

The two DC motors are controlled using MSP430 Launchpad and Robot Shield (L293D + MAX485) and the RS485 twisted pair cable is connected to the PC USB port using USB2SERIAL (USB to RS485 converter).

PWM speed control of DC motor using MSP430 Launchpad and L293D

PWM speed control of DC motor using MSP430 Launchpad and Motor Control Booster Pack

In the previous article we learned how to control a dc brushed motor using MSP430G2553 and L293D motor driver chip,the main focus in that article was about starting and controlling the direction of motors.The motors were allowed to be rotated at their maximum speed.In this article we are going to implement a simple PWM (Pulse Width Modulation) based speed control for DC brushed motors using MSP430 Launchpad.

Controlling DC motors using MSP430 Launchpad and L293D

msp430 launchpad interfaced with L293D  controlling two dc motors

In this tutorial we will control two DC brushed motors using MSP430 Launchpad (MSP430G2553) and L293D Motor Driver IC (Robot Shield). L293D is a quadruple high-current half-H driver IC which can be used for controlling DC brushed motors,solenoids,relays etc.The IC contains 4 half H drivers which can be combined together to create two full H bridge circuits for controlling two DC brushed motors.The L293D is designed to provide bidirectional drive currents of up to 600-mA at voltages from 4.5 V to 36 V,Here we will be running the motors at 12V.

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