I want to use the Ticker library of the ESP8266 Arduino core to (asynchronously) delay the switch of a pin to a desired state like below. I am note sure about the "here is" function definitions and I am having a hard time to find some documentation. Please have a look what I tried so far:

#include <Ticker.h>

Ticker change_pin;

...

    uint8_t desired_state = 1;
    ...
    change_pin.attach_ms(100, [](uint8_t state_to_change_to){
        if( digitalRead(PIN) != state_to_change_to ) {
            digitalWrite(PIN, state_to_change_to);
        }
        else {
            change_pin.detach();
        }
    }, desired_state);

But the compiler's yelling:

espIKEA:145: error: no matching function for call to 'Ticker::attach_ms(int, toogle_light(uint8_t)::__lambda0, uint8_t&)'

   }, des_state);

               ^

...

C:\Users\USER\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\Ticker/Ticker.h:45:7: note:   candidate expects 2 arguments, 3 provided

C:\Users\USER\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\Ticker/Ticker.h:62:7: note: template<class TArg> void Ticker::attach_ms(uint32_t, void (*)(TArg), TArg)

  void attach_ms(uint32_t milliseconds, void (*callback)(TArg), TArg arg)

       ^

C:\Users\USER\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\Ticker/Ticker.h:62:7: note:   template argument deduction/substitution failed:

C:\Users\USER\Documents\Arduino\Scratch\pintest\pintest.ino:145:15: note:   mismatched types 'void (*)(TArg)' and 'toogle_light(u8)::__lambda0'

   }, des_state);

               ^

But I am having too few knowledge to understand what to do about it. I really would like to avoid having a separate function for the callback body.

PS: Important source file can be found here: Ticker.h

I want to use the Ticker library of the ESP8266 Arduino core to (asynchronously) delay the switch of a pin to a desired state like below. I am not sure about the "here is" function definitions and I am having a hard time to find some documentation. Please have a look at what I tried so far:

#include <Ticker.h>

Ticker change_pin;

...

    uint8_t desired_state = 1;
    ...
    change_pin.attach_ms(100, [](uint8_t state_to_change_to){
        if( digitalRead(PIN) != state_to_change_to ) {
            digitalWrite(PIN, state_to_change_to);
        }
        else {
            change_pin.detach();
        }
    }, desired_state);

But the compiler's yelling:

espIKEA:145: error: no matching function for call to 'Ticker::attach_ms(int, toogle_light(uint8_t)::__lambda0, uint8_t&)'

   }, des_state);

               ^

...

C:\Users\USER\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\Ticker/Ticker.h:45:7: note:   candidate expects 2 arguments, 3 provided

C:\Users\USER\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\Ticker/Ticker.h:62:7: note: template<class TArg> void Ticker::attach_ms(uint32_t, void (*)(TArg), TArg)

  void attach_ms(uint32_t milliseconds, void (*callback)(TArg), TArg arg)

       ^

C:\Users\USER\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\Ticker/Ticker.h:62:7: note:   template argument deduction/substitution failed:

C:\Users\USER\Documents\Arduino\Scratch\pintest\pintest.ino:145:15: note:   mismatched types 'void (*)(TArg)' and 'toogle_light(u8)::__lambda0'

   }, des_state);

               ^

So, I am having too few knowledge to understand what to do about it. I really would like to avoid having a separate function for the callback body.

PS: Important source file can be found here: Ticker.h