Hello everyone ! Please tell me how to make a very fast reading of the pin status (fast ReadDigital) ? I use the mbed-enabled board core.

Try this. void setup() { Serial.begin(115200); while(!Serial); delay(1000); pinMode(P0_3, INPUT_PULLUP); //D1(P0.03) connected SW } void loop() { uint32_t REPEAT = 1000000; uint32_t timestamp = millis(); int x; for(uint32_t i = 0; i < REPEAT; i++) { x = (nrf_gpio_port_in_read…