You can't read the value of a GPIO if you didn't declare it as input.... well , i actually had decleared the pin as input mode before I call the func gpio_get_level(),but I cannot see the change of the pin on my screan still... but when I use avometer to check the level of the pin ,it does changed ...

Ok guys ... there actually has not such a question here .. bucause when I use avometer to check the value of the pin , the pin was actually on the high value while the the msg printf by gpio_get_level(); is "0" , so there is also sth wrong on API..?

I write a callback func like this to deive my peripheral , it runs when a specific key is down: void DrainWater(void) { gpio_set_level(GPIO_NUM_x,1);//set the pin as high level to drive the peripheral printf("The Value Of The GPIO_NUM_x now is %d",gpio_get_level(GPIO_NUM_x)); } this func is included...

well , M so sorry for ask this question because I have resolved it just now... Because of that in windows the port is just to simulate the work condition which is under linux , so you can not set the port name by "COMn"[n = 1 , 2 , 3 ...]，you have to use the port name under the linux by "/dev/ttyS0"...

I am just a new one to ESP32 , and going to working under windows 10 ，so I just do with the official recommend that with the IED eclipse and download the esp-idf form offical host page ，and commend make menuconfig was also added and it worked well,till now everything seems to be alright but , when I...