Data Sheet

ROBOT . HEAD to TOE

Product User’s Manual – MDS40B

FUNCTION Description:

Motor Terminal Block

Connect to motor at your mobile robot. User can screw to lock the wire to the terminal block

or solder the wire directly to the pad at bottom layer. Please use wire with proper thickness to

support the expected current.

Power Supply Terminal Block

Connect to power source. User can screw to lock the wire to the terminal block or solder the

wire directly to the pad at bottom layer. No polarity protection, please double check before

power up. Please use wire with proper thickness to support the expected current.

MotorLED Indicator

Indication for current flow and direction for motor. If LED A turns on, means current flows

from output A to B. Vice versa.

Power Switch Terminal Block

Switch for power up MDS40B’s microcontroller and logic circuit. This switch is ON by

default.

Run and Error LED

Run LED will turn on when motor is running.

Error LED

Number of Blinks

Error

Description

Off

No Error

No error has been detected.

Input Error

Invalid or no input detected.

Under Voltage

The battery voltage is low.

Over Voltage

Supply voltage is over the limit. MDS40B

will not operate.

Over Temperature

Board temperature is high.

Test Button

Fast test to check driver functionality for motor. If A is pressed, current flows from output A

to B. Vice Versa.

Mode Selection DIP Switch

User can select different input mode by setting the DIP switch.

RC Input Pin

This pins specially for RC receiver input wire. RC1 for forward/reverse and RC2 for steering.