Whadda WPSH205 User manual

MANUAL
EN
WLAN ESP-WROOM-02 Shield
WPSH205
whadda.com

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Introduction
To all residents of the European Union
Important environmental information about this product
This symbol on the device or the package indicates that disposal of the device after its
lifecycle could harm the environment. Do not dispose of the unit (or batteries) as unsorted
municipal waste; it should be taken to a specialized company for recycling. This device
should be returned to your distributor or to a local recycling service. Respect the local
environmental rules.
If in doubt, contact your local waste disposal authorities.
Thank you for choosing Whadda! Please read the manual thoroughly before bringing this
device into service. If the device was damaged in transit, do not install or use it and contact
your dealer.
Safety Instructions
Read and understand this manual and all safety signs before using this appliance.
For indoor use only.
•This device can be used by children aged from 8 years and above, and persons with
reduced physical, sensory or mental capabilities or lack of experience and knowledge if
they have been given supervision or instruction concerning the use of the device in a
safe way and understand the hazards involved. Children shall not play with the device.
Cleaning and user maintenance shall not be made by children without supervision.
General Guidelines
•Refer to the Velleman®Service and Quality Warranty on the last pages of this manual.
•All modifications of the device are forbidden for safety reasons. Damage caused by user
modifications to the device is not covered by the warranty.
•Only use the device for its intended purpose. Using the device in an unauthorized way
will void the warranty.
•Damage caused by disregard of certain guidelines in this manual is not covered by the
warranty and the dealer will not accept responsibility for any ensuing defects or
problems.
•Nor Velleman Group nv nor its dealers can be held responsible for any damage
(extraordinary, incidental or indirect) –of any nature (financial, physical…) arising from
the possession, use or failure of this product.
•Keep this manual for future reference.

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What is Arduino®
Arduino® is an open-source prototyping platform based on easy-to-use hardware and
software. Arduino® boards are able to read inputs –light-on sensor, a finger on a button or a
Twitter message –and turn it into an output –activating of a motor, turning on an LED,
publishing something online. You can tell your board what to do by sending a set of
instructions to the microcontroller on the board. To do so, you use the Arduino programming
language (based on Wiring) and the Arduino® software IDE (based on Processing). Additional
shields/modules/components are required for reading a twitter message or publishing
online. Surf to www.arduino.cc for more information.
RED Declaration of Conformity
Hereby, Velleman Group nv declares that the radio equipment type WPSH205 is in
compliance with Directive 2014/53/EU.
The full text of the EU declaration of conformity is available at the following internet
address: www.velleman.eu.
Product overview
This convenient ESP-WROOM-02 shield for Arduino® includes a pre-soldered ESP8266
module, and power supply - so all the hard work is done and you will receive a plug-and-play
ESP8266 solution for your Arduino®.
You can start straight away with the ESP8266 in serial AT command serial mode or –if you're
interested in deeper exploration of the ESP8266 –you can upload different firmware such as
NodeMCU and others.
All the GPIO pins are brought out to inline header pins, and the shield has a great online user
manual, so you'll be up and running in no time at all.
Specifications
•chipset: ESP8266
•Wi-Fi operation current:
ocontinuous transmission operation: 70 mA (200 mA max.)
oidle mode: < 200 µA
•serial WiFi transmission rate: 110-460800 bps
•operating humidity: 10%-90% non-condensing
•operating temperature: -10 to 70 °C
•weight: ± 20 g (0.7 oz)

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Pin Layout
Part
Pin
Ground
Remark
Arduino®
G
Digital IO
D
Analogue IO
A
5V
5V
Arduino®Uno TX
Connection with ESP8266
TX
Arduino®Uno TX
Connection with ESP8266
RX
Arduino®SCL
SCL
Arduino®SDA
SDA
Ground
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 and
SW2 must be set to OFF
Example
Hardware Requirements
•1x Arduino® Uno board
•1x WPSH205
•1x PC with wireless LAN
•1x USB cable
Software Requirements
•1x Arduino® IDE
•TCPUDPDbg download (for sending and receiving Internet communication data)
The standard firmware programmed onto the ESP-WROOM-02 module is designed to work in
conjunction with an Arduino® UNO or MEGA compatible board (e.g. Whadda ATmega328
Development board). The Arduino®compatible board uses the ESP-WROOM-02 as a Wi-Fi
modem to connect to a wireless network or even host its own access point. By using a
standard set of AT commands the Arduino®compatible board can communicate to the ESP-
WROOM-02 how the Wi-Fi modem needs to be set up.

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Before the shield can be used in this manner however, some initial configuration steps need
to be done to update the firmware on the module and enable it to communicate with the
Arduino® compatible board:
1. Connect a USB to Serial adapter to the ESP13 shield UART pins (RX->TXO,TX->RXO)
2. Use the ESP8266 flashing tool to flash the most recent IDF-AT firmware (v2.1 or higher):
a. Download the flashing tool here (under Flash Download Tools:
www.espressif.com/en/support/download/other-tools).
b. Download the most recent IDF-AT firmware (v2.1 or higher) here:
docs.espressif.com/projects/esp-
at/en/latest/AT_Binary_Lists/ESP8266_AT_binaries.html
c. Open the flashing tool and select developer mode and ESP8266.
Use the SPIDownload tab to set the factory_WROOM-02.bin file (located in the
factory folder of the downloaded ZIP file) to be flashed starting at memory location
0x0.
Make sure all settings are configured as in the screenshot below:

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d. Press and hold the RST and KEY buttons on the shield, while pressing START in the
ESP8266 Download tool.
e. Release the RST button but keep holding down the KEY button until the firmware
download has finished.
3. The new firmware enables another UART port on the ESP-WROOM-02 module that
listens to AT commands. Connect the USB to serial adapter to this second UART port by
connecting RX to Pin 15 on the shield, and TX to Pin 13 on the shield (on the lower ESP-
WROOM-02 side).
4. Open the serial monitor in the Arduino® IDE, set it to a baud rate of 115200 and make sure
both NL & CR is configured.
5. Briefly press the RST button on the shield, if everything is connected properly the word
“ready” should appear in the serial monitor. Enter AT+GMR to get an overview of the
firmware version installed on the module.
6. To be able to use the SoftwareSerial library to connect to the ESP-WROOM-02 module,
the baud rate of the module needs to be lowered to 9600 baud. This can be done by
sending the following AT command: AT+UART_DEF=9600,8,1,0,0.
7. Reconfigure the Serial monitor to now use a baud rate of 9600, and briefly hit the RST
button. The word “ready” should again appear in the serial monitor.
8. Remove the connections to the USB to serial adapter and connect the shield to an
Arduino® compatible board. Use two female-to-female jumper cables to connect pin 13
of the ESP side to digital pin 7 on the Arduino® board side, and pin 15 of the ESP13 side to
digital pin 6 on the Arduino® board side. Make sure both DIP switches are set to the
lowest position.
9. Install the WiFiEspAT library using the Arduino® IDE library manager.
10. Your shield is now configured to be used with an Arduino® compatible board using the
WiFiEspAT library! You can follow the Getting started guide of the WiFiEspAT library
(available here: github.com/jandrassy/WiFiEspAT) to learn how to use the included
examples of the library.

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