Data Sheet

VMA205
V. 02 – 12/04/2018 3 ©Velleman nv
5. Pin Layout
Part
Pin
Function
Remark
Arduino
®
G
Ground
D
Digital IO
A
Analogue IO
5V
5V
TX
Arduino
®
Uno TX
Connection with ESP8266
RX
Arduino
®
Uno TX
Connection with ESP8266
SCL
Arduino
®
SCL
SDA
Arduino
®
SDA
ESP8266
G
Ground
D
Digital IO
3V3
3.3V
RX0
ESP8266 RX0
Connection with Arduino
®
TX0
ESP8266 TX0
Connection with Arduino
®
EN
ESP8266 EN
AD
ESP8266 AD
RST
ESP8266 reset
KEY
ESP8266 WiFi configuration
SW
ESP8266 and Arduino
®
When programming Arduino
®
with
IDE, SW1 must switch to OFF
6. Example
Hardware Requirements
 1x Arduino
®
Uno board
 1x VMA205
 1x PC with wireless LAN
 1x USB cable
Software Requirements
 1x Arduino
®
IDE
 TCPUDPDbg download (for sending and receiving Internet communication data)
This shield allows you to operate an ESP8266 controller board through Arduino
®
IDE, without any wire
connection. Just plug this shield into the Arduino
®
UNO/Mega board, upload the WiFi configuration code to start
a WiFi host or hotpoint, and use the TCP/UDP Debugging software to monitor your data transmission.
First, the hardware connection is very simple and does not need any wire connection. Just connect the WiFi
shield to the Arduino
®
UNO/Mega board.