ESP8266 Community Forum

- Sat Dec 02, 2017 5:03 am #72234 Hi, if you use an output pin that doesn't support SPI you will get the notification but it should still compile and run. Off hand pin 2 on the ESP is SPI data (SDA) - pin14 is the clock to match that (SCL) but you don't need to use that.

- Mon Dec 04, 2017 3:46 am #72292

Add

Code: Select allWiFi.mode( WIFI_OFF );
WiFi.forceSleepBegin();

into setup()

Hmm...I might be doing something wrong but it doesn't work for me.

1111.JPG

I get the "'WiFi' was not declared in this scope" error.

Hi, if you use an output pin that doesn't support SPI you will get the notification but it should still compile and run. Off hand pin 2 on the ESP is SPI data (SDA) - pin14 is the clock to match that (SCL) but you don't need to use that.

Great that works!
PinD2 works I just have to write the GPIO number which is 4. So I chose the wrong pin it seems. Thank you!

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- Mon Dec 04, 2017 12:57 pm #72304

I get the "'WiFi' was not declared in this scope" error.

Code: Select all#include <ESP8266WiFi.h>

- Tue Dec 05, 2017 2:52 am #72313

I get the "'WiFi' was not declared in this scope" error.

Code: Select all#include <ESP8266WiFi.h>

Cool yeah now it works but I'm not sure if it's right or not.
If I put it inside a separate setup() I can't compile the sketch giving me the following error.

1.JPG

If I include it into the setup() that exists already in the sketch I can compile it.

2.JPG

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