Hi,
Have got one of the ebay WeMos D1 Mini ESP8266 -12 modules and have been able to download code to it from the Ardunio ide /usb and its runs fine on its own using the basic code examples for a web server and a network scanner.
However I am looking to use it with an Arduino project that need many more i/os than the Wemos can handle, so tried some of the various code examples from the web, but each time the Uno would not get any response from the Wemos to the initial AT+RST command.
This is the last code I tried https://www.instructables.com/id/noobs-guide-to-ESP8266-with-Arduino-Mega-2560-or-U/
Have just tried it on a mega board so easier to use the serial hardware lines and it still does not give any response to the AT commands.
Tried changing the Serial2 baud rates without any effect.
Have scoped, all the way to the actual esp chips smd pad the incoming signal ok, as 3.1v via a pot div, but nothing showing on the Wemos TX line., just high.
The Wemos Reset pin is also in its default high.
Any suggestions of any other software test I could do to help locate the problem or prove the board is faulty ...?
thanks
Have got one of the ebay WeMos D1 Mini ESP8266 -12 modules and have been able to download code to it from the Ardunio ide /usb and its runs fine on its own using the basic code examples for a web server and a network scanner.
However I am looking to use it with an Arduino project that need many more i/os than the Wemos can handle, so tried some of the various code examples from the web, but each time the Uno would not get any response from the Wemos to the initial AT+RST command.
This is the last code I tried https://www.instructables.com/id/noobs-guide-to-ESP8266-with-Arduino-Mega-2560-or-U/
Have just tried it on a mega board so easier to use the serial hardware lines and it still does not give any response to the AT commands.
Tried changing the Serial2 baud rates without any effect.
Have scoped, all the way to the actual esp chips smd pad the incoming signal ok, as 3.1v via a pot div, but nothing showing on the Wemos TX line., just high.
The Wemos Reset pin is also in its default high.
Any suggestions of any other software test I could do to help locate the problem or prove the board is faulty ...?
thanks