NoticeMBoard
Contents
Overview
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
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.
