HB 08M 3

This is another motion module that features control of two DC motors with direction control. 2 servo motors, 1 switch and infra red sensor.  Note that you cannot run all the systems at one time.

For example, you can run one DC Motor and  two servos at the same time.

These functions are selected with jumpers on the board.

Features:

2 bidirectional DC motor control

2 Servos

External power supply for servos

DC motors can have speed control

DC motor voltage selectable

External switch

Infra red control input

NOTE: Assembly instructions are the same for HV rev 1 boards but these do not have the external servo select or the options of running 2 servos and 1 motor.

HB 3 Functions - Motor Driver

You can control 2 DC motors with the 293D H bridge driver chip - U1.

This device can have a rapid ON and OFF sequence applied to pins CE1 and CE2 to enable a speed control operation.

This is selected with Jumpers and J2 and J3.

The motor voltage, Vmot, is either 5V or an external voltage applied to MOTORSUPPLY1 connector.

Make sure that the polarity is correct - + on the top pin and ground on the lower pin.

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HB 3 Functions - Servo Motors

You can control 2 servo motors by sharing the PIN3 and PIN5 connections. This means that you can run one DC motor with PIN7 and PIN6 and a servo with PIN3 and another servo with PIN5,

This selection is done with links on Jumpers J7 and J8

J10 allows an external voltage to be supplied to the servo motors and this is a preferred option