ESP8266-Based Serial WiFi Shield for Arduino Uno Connection problem

Development Tools IDE 1.x
1

Hi,

I am trying to connect Arduino Uno Rev3 over Wifi. Ibought ESP8266-Based Serial WiFi Shield for Arduino designed and developed by Shenzhen Doctors of Intelligence & Technology (SZDOIT). The shield is designed based on esp8266 by Espressif Systems, pin-compatible with Arduino UNO.

I am facing a strange problem. When i connect with Arduino Uno Rev3, I see the AI-Thinker-XXXX network, and can connect to it. Even able to ping 192.168.4.1, but not able to open webpage for doing configuration as mentioned in the user guide
Introduction | ESP8266-Based Serial WiFi Shield for Arduino----User Manual?

Also only RED LED remains ON, but BLUE LED does not blink. I tried different DIP switch positions still issue persists. I am providing power via USB cable connected to my laptop.

Please help...

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2

The best thing you can do with that particular shield is actually throw it away.

Mine has never worked as advertised despite a lot of research.
IIRC there are a couple of other posts about that particular shield and those users also didn't get it working properly.

I went as far as talking to the developers who said it was incomplete.
Surprised it is still for sale !

Instructions or help online for this one is pretty much ZERO that is of any use.

Sorry about the news but if you want another one to match yours (its very dusty LOL) gimme a shout.

3

it's an esp8266-12 and all relevant pins are on headers. it should work as any other ESP-12 module.

4

Thats true Juraj.

You could probably use it as a "stand alone" unit.

5

ballscrewbob:
The best thing you can do with that particular shield is actually throw it away.

:slightly_frowning_face: Could you please suggest an alternate Wifi shield. My requirement is simple...Need to send position data over wifi to centralised server for further analytics.

6

this shield is ok and it can be used with Arduino like every other esp module. and it can be powered with 5 V and has level shifters. I have a smaller module with esp 12 and level shifters and had no problem with AT firmware and WiFiEsp library and it worked with WiFiLink too.

one thing could be better - if the level shifted esp RX would be accessible not only at bottom side at Arduino TX pin position. it would make possible to connect it for debugging with softwareserial to some Arduino pin pair when attached to Uno.

7

@Juraj
The amount of time I had to back to factory setting on that particular shield was a joke.

Also spent an extra ordinary amount of time talking to the devs for that board only to be told it was not suitable for how it was designed.

As for support on the web there are about 4 links that take some digging to find.

I went on to start using other ESP's more so the Node type boards which I find very reliable and easy to use.
Have about 8 more projects to do before I get back to ESP's

For simple sensore the super cheap ESP's are

@angovil

Almost any other ESP but that one although if you power it as a standalone board it would probably do what you need. Otherwise NodeMCU ESP's are cheap and easy to use in a much nicer package.