Wboard Ex

Overview

WBoard EX is a unique Arduino board with WIFI module, XBee socket, nRF24L01 + module interface, micro SD card interface, electronic brick interface and ATmega32U4 chip. WBoard EX boot procedure is based on Arduino Leonardo. With WIFI module, the board can achieve wireless communication with TCP / IP protocol. Via XBee and nRF24L01 + or WIFI can be used for wireless control with functions covering from smart home to remote control to meet various needs of different projects.

Spec

PCB size	90.0mm X57.8mm X 1.6mm
Supply voltage	7~23V DC
Operating voltage	3.3V DC
Microprocessor	ATmega32u4
Indicator	W_PWR, PWR, TXD, RXD, D13
Communication interface	XBee, nRF24L01+,UART, IIC, ITDB02LCD, micro SD

Electrical characteristics

Parameters	Min.	Typical	Max.	Unit
Supply voltage	7	-	23	VDC
Input high voltage VH	3	3.3	3.6	V
Input low voltage	-0.3	0	0.5	V
Average current consumption	-	100	500	mA

Hardware

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

WIFI module Interface

Index of Interface	Name of Interface	Index of Arduino	Pin of Atmega32U4
1	WIFI_RTS	D7	PE6
2	WIFI_CTS	D8	PB4
3	WIFI_RST	D10	PB6

Index of Interface	Name of Interface	Description
1	D-RX	Upgrade firmware, UART input
2	D-TX	Upgrade firmware, UART output
3	ERROR	Indication for terrible errors in the module, high level is valid
4	WPS	WPS function input, the descending portion is valid. By inputting VDD/2 in the pin when starting up, the module will enter WEB SERVER.
5	BOOT	Used in boot program, high level is valid.

Download

Datasheet for Wboard Ex