MBoard

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Overview

Mboard.jpg

MBoard is a unique Arduino board which features a L298P motor driver, an XBee socket, nRF24L01+ module interface, Micro SD socket and an ATMega32U4. The bootloader of Mboard is based on Arduino Leonardo. With motor driver chip L298P, this board can drive the DC motor directly and stepper motor with software IO control. This board will add wireless as well as motor control connectivity to your projects. It’s great for anything from home automation to robot control. The possibilities are endless!

Go shopping MBoard (SKU:IM121126001)

Spec

PCB size 80.77mm X 57.66mm X 1.6mm
Power supply 7~23V DC
POE supply 7~23V
Microprocessor Atmega32u4
Indicators PWR, Tx, Rx, D13, C1, C2, C3, C4
Communication Interface XBee,nRF24L01+,UART,IIC

Electrical Characteristics

Specification Min Type Max Unit
Power Voltage 7 - 23 VDC
Input Voltage VH (Target Voltage = 3.3V) 3 3.3 3.6 V
Input Voltage VL: -0.3 0 0.5 V
Current Consumption(Except Motor Drive Current) - 100 500 mA
Peak Output Current(Every Channel)

-Non Repetitive(t=100us)

- - 3 A
-Repetitive(80%on-20%off, ton=10ms) - - 2.5 A
-DC operation - - 3 A

Hardware

IM121126001_Mboard.jpg

Top View Map

Pin map

ITDB02 EB Interface

Index of Interface Name of Interface Index of Arduino Pin of Atmega32u4
1 EB0 A0 PF7
2 EB1 A1 PF6
3 EB2 A2 PF5
4 EB3 A3 PF4
5 EB4 A4 PF1
6 EB5 A5 PF0

nRF24L01+ Module Interface

Index of Interface Name of Interface Index of Arduino Pin of Atmega32u4
1 GND - -
2 3V3 - -
3 CE D5 PC6
4 CS D9 PB5
5 SCK D15 PB1
6 MOSI D16 PB2
7 MISO D14 PB3
8 IRQ D6 PD7

Micro SD Socket

Index of Interface Name of Interface Index of Arduino Pin of Atmega32u4
1 SD_CS D4 PD4
2 MOSI D16 PB2
3 3V3 - -
4 SCK D15 PB1
5 GND - -
6 MISO D14 PB3

Moto Drive Interface

Index of Interface Name of Interface Index of Arduino Pin of Atmega32u4
1 IN1 D7 PE6
2 IN2 D8 PB4
3 IN3 D12 PD6
4 IN4 D13 PC7
5 ENA D10(PWM) PB6
6 ENB D11(PWM) PB7

XBee Communication Interface

Index of Interface Name of Interface Index of Arduino Pin of Atmega32u4
1 RX D0 PD2
2 TX D1 PD3

Installation

Mboard can drive two DC motors at the same time. OUT1/OUT2 is completely symmetrical as OUT3/OUT4 on the board.

DC motor input has three pins, In1, In2 and EnA. In1 and In2 are digital ports which are used to control the direction of the motors, EnA is connecting with PWM port of control board to control the speed of motor.

EnA In1 In2 LED Inductor Description
0 X X C1 Off, C2 Off Free Running Motor Stop
H H L C1 On, C2 Off Forward
H L H C1 Off, C2 On Reverse
H In1=In2 C1 Off, C2 Off Fast Motor Stop
EnB In3 In4 LED Inductor Description
0 X X C3 Off, C4 Off Free Running Motor Stop
H H L C3 On, C4 Off Forward
H L H C3 Off, C4 On Reverse
H In1=In2 C3 Off, C4 Off Fast Motor Stop

And Mboard can control 4-wire stepper motor the same way as two DC motors with the signals from EnA,In1,In2 and EnB,In3,In4

Software

Mboard is designed for compatible for SD libraries of Arduino.cc, and all demo codes could be downloaded directly and run it.

With embedded bootloader, Mboard is easy to use by Arduino IDE through mini USB cable. ISP of Atmega32U4 is broke out for download firmware easily.

Download

Datasheet for MBoard

Schematic for MBoard

Fritzing Parts for MBoard

Useful Link

<Fritzing Parts: ITEAD Development Board>