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Topic: Simple Remote control using ESP8266

Hi,

I intend to built a project using Arduino UNO with an ESP8266 module, to turn on/off loads remotely.

My Uno board is functioning well.

The ESP module is having latest firmware installed on it.

I'm using RemoteXY.com editor, and its equivalent (newest) app on Android.

I have copied the source code and compiled it to Arduino with NO errors.

Also the baud rate is identical between source code and ESP.

The problem is, that I am not able accurately to connect to the app and control loads.

Between 20 attempts I can only connect once, and the connection is often reset and broken.

What could be the error?

P.S I have used the ESP connection from RemoteXY tutorial, but DIDN'T use the resistive voltage divider between RX pin on ESP and TX pin on Uno.

Thanks in advance

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Re: Simple Remote control using ESP8266

DjMadness wrote:

P.S I have used the ESP connection from RemoteXY tutorial, but DIDN'T use the resistive voltage divider between RX pin on ESP and TX pin on Uno.

I absolutely recommend you use either voltage divider, or a "level shifting" device such as ....

https://www.ebay.co.uk/itm/4-channel-Bi … Swn4da31kF

These modules, powered by the respective 5V and 3.3V supplies ensure that no signal can exceed the required voltage levels.

Also resistors can pick-up external signals, like an aerial, especially when they are high value resistors.

Everything works with smoke - if you let it out, things stop working....